./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:19:42,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:19:42,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 18:19:42,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:19:42,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:19:42,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:19:42,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:19:42,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:19:42,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:19:42,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:19:42,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:19:42,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:19:42,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:19:42,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:19:42,984 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:19:42,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:19:42,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:19:42,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:19:42,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:19:42,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:19:42,987 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:19:42,989 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:19:42,990 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:19:42,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:19:42,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:19:42,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:19:42,991 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:19:42,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:19:42,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:19:42,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:19:42,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:19:42,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:19:42,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:19:42,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:19:42,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:19:42,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:19:42,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:19:42,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:19:42,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:19:42,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:19:42,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:19:42,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:19:42,998 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-08 18:19:43,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:19:43,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:19:43,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:19:43,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:19:43,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:19:43,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i Unable to find full path for "g++" [2024-11-08 18:19:45,336 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:19:45,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:19:45,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 18:19:45,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/data/862bdef10/a229700b7c9c4f8c9bb33bdd58cfba38/FLAGf459c9e41 [2024-11-08 18:19:45,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/data/862bdef10/a229700b7c9c4f8c9bb33bdd58cfba38 [2024-11-08 18:19:45,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:19:45,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:19:45,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:19:45,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:19:45,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:19:45,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:45" (1/1) ... [2024-11-08 18:19:45,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3922b6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:45, skipping insertion in model container [2024-11-08 18:19:45,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:45" (1/1) ... [2024-11-08 18:19:45,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:19:46,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:19:46,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:19:46,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:19:46,370 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:19:46,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46 WrapperNode [2024-11-08 18:19:46,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:19:46,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:19:46,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:19:46,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:19:46,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,426 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 120 [2024-11-08 18:19:46,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:19:46,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:19:46,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:19:46,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:19:46,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,472 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-08 18:19:46,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:19:46,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:19:46,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:19:46,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:19:46,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (1/1) ... [2024-11-08 18:19:46,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:19:46,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:46,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:19:46,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:19:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:19:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:19:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-08 18:19:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-08 18:19:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:19:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:19:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:19:46,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:19:46,592 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:19:46,733 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:19:46,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:19:47,060 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:19:47,061 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:19:47,302 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:19:47,302 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 18:19:47,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:47 BoogieIcfgContainer [2024-11-08 18:19:47,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:19:47,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:19:47,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:19:47,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:19:47,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:19:45" (1/3) ... [2024-11-08 18:19:47,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1fedf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:19:47, skipping insertion in model container [2024-11-08 18:19:47,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:46" (2/3) ... [2024-11-08 18:19:47,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1fedf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:19:47, skipping insertion in model container [2024-11-08 18:19:47,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:47" (3/3) ... [2024-11-08 18:19:47,318 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 18:19:47,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:19:47,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-11-08 18:19:47,339 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:19:47,473 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:19:47,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 78 transitions, 160 flow [2024-11-08 18:19:47,585 INFO L124 PetriNetUnfolderBase]: 11/77 cut-off events. [2024-11-08 18:19:47,585 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:47,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 11/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 235 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2024-11-08 18:19:47,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 78 transitions, 160 flow [2024-11-08 18:19:47,597 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 77 transitions, 157 flow [2024-11-08 18:19:47,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:19:47,613 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;@11b03797, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:19:47,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-08 18:19:47,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:19:47,616 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-08 18:19:47,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:47,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:47,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-08 18:19:47,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:47,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash 13158, now seen corresponding path program 1 times [2024-11-08 18:19:47,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:47,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762967285] [2024-11-08 18:19:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:48,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:48,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762967285] [2024-11-08 18:19:48,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762967285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:48,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:48,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:19:48,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286411815] [2024-11-08 18:19:48,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:48,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:48,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:48,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:48,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:48,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 78 [2024-11-08 18:19:48,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 77 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-08 18:19:48,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:48,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 78 [2024-11-08 18:19:48,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:48,393 INFO L124 PetriNetUnfolderBase]: 214/621 cut-off events. [2024-11-08 18:19:48,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:48,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 621 events. 214/621 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3924 event pairs, 147 based on Foata normal form. 54/523 useless extension candidates. Maximal degree in co-relation 982. Up to 368 conditions per place. [2024-11-08 18:19:48,402 INFO L140 encePairwiseOnDemand]: 69/78 looper letters, 28 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-11-08 18:19:48,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 68 transitions, 199 flow [2024-11-08 18:19:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2024-11-08 18:19:48,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6581196581196581 [2024-11-08 18:19:48,419 INFO L175 Difference]: Start difference. First operand has 70 places, 77 transitions, 157 flow. Second operand 3 states and 154 transitions. [2024-11-08 18:19:48,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 68 transitions, 199 flow [2024-11-08 18:19:48,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:48,426 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 142 flow [2024-11-08 18:19:48,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2024-11-08 18:19:48,433 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2024-11-08 18:19:48,433 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 142 flow [2024-11-08 18:19:48,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-08 18:19:48,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:48,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-08 18:19:48,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:19:48,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:48,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:48,435 INFO L85 PathProgramCache]: Analyzing trace with hash 13159, now seen corresponding path program 1 times [2024-11-08 18:19:48,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:48,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373624039] [2024-11-08 18:19:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:48,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:48,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:48,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373624039] [2024-11-08 18:19:48,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373624039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:48,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:48,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:19:48,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399144821] [2024-11-08 18:19:48,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:48,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:48,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 78 [2024-11-08 18:19:48,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-08 18:19:48,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:48,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 78 [2024-11-08 18:19:48,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:48,915 INFO L124 PetriNetUnfolderBase]: 214/620 cut-off events. [2024-11-08 18:19:48,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:48,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 620 events. 214/620 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3930 event pairs, 147 based on Foata normal form. 1/469 useless extension candidates. Maximal degree in co-relation 986. Up to 368 conditions per place. [2024-11-08 18:19:48,928 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 28 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-11-08 18:19:48,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 67 transitions, 200 flow [2024-11-08 18:19:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-11-08 18:19:48,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2024-11-08 18:19:48,931 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 142 flow. Second operand 3 states and 148 transitions. [2024-11-08 18:19:48,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 67 transitions, 200 flow [2024-11-08 18:19:48,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 67 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:48,936 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 140 flow [2024-11-08 18:19:48,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=66, PETRI_TRANSITIONS=67} [2024-11-08 18:19:48,937 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2024-11-08 18:19:48,937 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 140 flow [2024-11-08 18:19:48,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-08 18:19:48,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:48,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:48,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:19:48,940 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:48,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash -757501160, now seen corresponding path program 1 times [2024-11-08 18:19:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074866558] [2024-11-08 18:19:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:49,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074866558] [2024-11-08 18:19:49,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074866558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:49,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:49,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:19:49,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678143144] [2024-11-08 18:19:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:49,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:49,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:49,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 78 [2024-11-08 18:19:49,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-08 18:19:49,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:49,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 78 [2024-11-08 18:19:49,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:49,239 INFO L124 PetriNetUnfolderBase]: 214/618 cut-off events. [2024-11-08 18:19:49,239 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:49,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 618 events. 214/618 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3902 event pairs, 147 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 984. Up to 368 conditions per place. [2024-11-08 18:19:49,246 INFO L140 encePairwiseOnDemand]: 76/78 looper letters, 29 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-08 18:19:49,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 198 flow [2024-11-08 18:19:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-11-08 18:19:49,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2024-11-08 18:19:49,248 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 140 flow. Second operand 3 states and 148 transitions. [2024-11-08 18:19:49,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 198 flow [2024-11-08 18:19:49,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 66 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:49,251 INFO L231 Difference]: Finished difference. Result has 65 places, 66 transitions, 136 flow [2024-11-08 18:19:49,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=65, PETRI_TRANSITIONS=66} [2024-11-08 18:19:49,252 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2024-11-08 18:19:49,252 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 66 transitions, 136 flow [2024-11-08 18:19:49,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-08 18:19:49,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:49,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:49,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:19:49,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:49,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:49,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1938880453, now seen corresponding path program 1 times [2024-11-08 18:19:49,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:49,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877005495] [2024-11-08 18:19:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:49,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:49,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877005495] [2024-11-08 18:19:49,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877005495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:49,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:49,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:19:49,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652754927] [2024-11-08 18:19:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:49,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:19:49,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:19:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:19:49,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 78 [2024-11-08 18:19:49,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 66 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-11-08 18:19:49,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:49,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 78 [2024-11-08 18:19:49,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:49,801 INFO L124 PetriNetUnfolderBase]: 213/563 cut-off events. [2024-11-08 18:19:49,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:49,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 563 events. 213/563 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3249 event pairs, 8 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 954. Up to 359 conditions per place. [2024-11-08 18:19:49,806 INFO L140 encePairwiseOnDemand]: 68/78 looper letters, 38 selfloop transitions, 4 changer transitions 0/70 dead transitions. [2024-11-08 18:19:49,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 70 transitions, 228 flow [2024-11-08 18:19:49,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:19:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:19:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-08 18:19:49,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-08 18:19:49,809 INFO L175 Difference]: Start difference. First operand has 65 places, 66 transitions, 136 flow. Second operand 5 states and 208 transitions. [2024-11-08 18:19:49,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 70 transitions, 228 flow [2024-11-08 18:19:49,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:49,816 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 131 flow [2024-11-08 18:19:49,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2024-11-08 18:19:49,817 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2024-11-08 18:19:49,817 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 131 flow [2024-11-08 18:19:49,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-11-08 18:19:49,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:49,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:49,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:19:49,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:49,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1938880452, now seen corresponding path program 1 times [2024-11-08 18:19:49,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:49,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028338336] [2024-11-08 18:19:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:49,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:50,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:50,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028338336] [2024-11-08 18:19:50,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028338336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:50,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:50,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:19:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688337340] [2024-11-08 18:19:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:50,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:19:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:19:50,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:19:50,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 78 [2024-11-08 18:19:50,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-11-08 18:19:50,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:50,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 78 [2024-11-08 18:19:50,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:50,405 INFO L124 PetriNetUnfolderBase]: 224/522 cut-off events. [2024-11-08 18:19:50,406 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-08 18:19:50,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 522 events. 224/522 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2740 event pairs, 68 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 946. Up to 362 conditions per place. [2024-11-08 18:19:50,410 INFO L140 encePairwiseOnDemand]: 68/78 looper letters, 38 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2024-11-08 18:19:50,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 223 flow [2024-11-08 18:19:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:19:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:19:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-08 18:19:50,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-08 18:19:50,413 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 131 flow. Second operand 5 states and 208 transitions. [2024-11-08 18:19:50,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 223 flow [2024-11-08 18:19:50,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 64 transitions, 215 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:19:50,416 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 119 flow [2024-11-08 18:19:50,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2024-11-08 18:19:50,417 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -14 predicate places. [2024-11-08 18:19:50,418 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 119 flow [2024-11-08 18:19:50,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-11-08 18:19:50,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:50,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:50,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:19:50,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:50,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:50,419 INFO L85 PathProgramCache]: Analyzing trace with hash -2107749514, now seen corresponding path program 1 times [2024-11-08 18:19:50,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:50,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993388736] [2024-11-08 18:19:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:50,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993388736] [2024-11-08 18:19:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993388736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:19:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150749788] [2024-11-08 18:19:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:50,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:19:50,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:19:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:19:50,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 78 [2024-11-08 18:19:50,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2024-11-08 18:19:50,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 78 [2024-11-08 18:19:50,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:50,848 INFO L124 PetriNetUnfolderBase]: 237/552 cut-off events. [2024-11-08 18:19:50,848 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-08 18:19:50,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 552 events. 237/552 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2948 event pairs, 53 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 1012. Up to 283 conditions per place. [2024-11-08 18:19:50,852 INFO L140 encePairwiseOnDemand]: 71/78 looper letters, 45 selfloop transitions, 4 changer transitions 0/68 dead transitions. [2024-11-08 18:19:50,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 68 transitions, 249 flow [2024-11-08 18:19:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:19:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:19:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 227 transitions. [2024-11-08 18:19:50,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5820512820512821 [2024-11-08 18:19:50,854 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 119 flow. Second operand 5 states and 227 transitions. [2024-11-08 18:19:50,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 68 transitions, 249 flow [2024-11-08 18:19:50,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 237 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:19:50,856 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 113 flow [2024-11-08 18:19:50,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-11-08 18:19:50,857 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -17 predicate places. [2024-11-08 18:19:50,858 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 113 flow [2024-11-08 18:19:50,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2024-11-08 18:19:50,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:50,858 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:50,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:19:50,858 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:50,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2107749513, now seen corresponding path program 1 times [2024-11-08 18:19:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:50,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443902767] [2024-11-08 18:19:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:51,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:51,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443902767] [2024-11-08 18:19:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443902767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:51,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:51,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:19:51,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316179476] [2024-11-08 18:19:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:51,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:19:51,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:19:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:19:51,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 78 [2024-11-08 18:19:51,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2024-11-08 18:19:51,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:51,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 78 [2024-11-08 18:19:51,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:51,422 INFO L124 PetriNetUnfolderBase]: 237/501 cut-off events. [2024-11-08 18:19:51,423 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 18:19:51,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 501 events. 237/501 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2473 event pairs, 53 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 964. Up to 283 conditions per place. [2024-11-08 18:19:51,426 INFO L140 encePairwiseOnDemand]: 71/78 looper letters, 45 selfloop transitions, 4 changer transitions 0/65 dead transitions. [2024-11-08 18:19:51,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 65 transitions, 239 flow [2024-11-08 18:19:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:19:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:19:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 227 transitions. [2024-11-08 18:19:51,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5820512820512821 [2024-11-08 18:19:51,428 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 113 flow. Second operand 5 states and 227 transitions. [2024-11-08 18:19:51,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 65 transitions, 239 flow [2024-11-08 18:19:51,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 65 transitions, 231 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:19:51,433 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 107 flow [2024-11-08 18:19:51,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2024-11-08 18:19:51,434 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -20 predicate places. [2024-11-08 18:19:51,434 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 107 flow [2024-11-08 18:19:51,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 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) [2024-11-08 18:19:51,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:51,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:51,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:19:51,435 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:51,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash 49834748, now seen corresponding path program 1 times [2024-11-08 18:19:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244849928] [2024-11-08 18:19:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:51,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:51,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244849928] [2024-11-08 18:19:51,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244849928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:51,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:51,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:19:51,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661630840] [2024-11-08 18:19:51,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:51,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:19:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:19:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:19:51,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 78 [2024-11-08 18:19:51,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-11-08 18:19:51,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:51,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 78 [2024-11-08 18:19:51,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:52,049 INFO L124 PetriNetUnfolderBase]: 304/672 cut-off events. [2024-11-08 18:19:52,049 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-08 18:19:52,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 672 events. 304/672 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3141 event pairs, 104 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 1266. Up to 386 conditions per place. [2024-11-08 18:19:52,054 INFO L140 encePairwiseOnDemand]: 71/78 looper letters, 73 selfloop transitions, 9 changer transitions 0/98 dead transitions. [2024-11-08 18:19:52,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 98 transitions, 387 flow [2024-11-08 18:19:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:19:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:19:52,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 350 transitions. [2024-11-08 18:19:52,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-11-08 18:19:52,056 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 107 flow. Second operand 7 states and 350 transitions. [2024-11-08 18:19:52,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 98 transitions, 387 flow [2024-11-08 18:19:52,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 98 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:19:52,060 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 159 flow [2024-11-08 18:19:52,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=159, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2024-11-08 18:19:52,061 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -14 predicate places. [2024-11-08 18:19:52,062 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 159 flow [2024-11-08 18:19:52,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-11-08 18:19:52,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:52,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:52,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:19:52,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:52,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:52,063 INFO L85 PathProgramCache]: Analyzing trace with hash 50974843, now seen corresponding path program 1 times [2024-11-08 18:19:52,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:52,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736076924] [2024-11-08 18:19:52,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:52,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:52,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:52,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736076924] [2024-11-08 18:19:52,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736076924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:52,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:19:52,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066110431] [2024-11-08 18:19:52,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:52,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:19:52,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:52,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:19:52,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:19:52,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:19:52,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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) [2024-11-08 18:19:52,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:52,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:19:52,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:52,748 INFO L124 PetriNetUnfolderBase]: 308/679 cut-off events. [2024-11-08 18:19:52,748 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-08 18:19:52,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 679 events. 308/679 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3287 event pairs, 104 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 1389. Up to 367 conditions per place. [2024-11-08 18:19:52,754 INFO L140 encePairwiseOnDemand]: 68/78 looper letters, 66 selfloop transitions, 13 changer transitions 6/101 dead transitions. [2024-11-08 18:19:52,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 424 flow [2024-11-08 18:19:52,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:19:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:19:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 343 transitions. [2024-11-08 18:19:52,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-11-08 18:19:52,758 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 159 flow. Second operand 7 states and 343 transitions. [2024-11-08 18:19:52,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 424 flow [2024-11-08 18:19:52,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:52,764 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 223 flow [2024-11-08 18:19:52,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=223, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2024-11-08 18:19:52,766 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2024-11-08 18:19:52,767 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 223 flow [2024-11-08 18:19:52,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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) [2024-11-08 18:19:52,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:52,768 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:52,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:19:52,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:52,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1456014612, now seen corresponding path program 1 times [2024-11-08 18:19:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:52,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680218610] [2024-11-08 18:19:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:52,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:53,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:53,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680218610] [2024-11-08 18:19:53,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680218610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:53,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:53,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:19:53,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12080097] [2024-11-08 18:19:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:53,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:19:53,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:53,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:19:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:19:54,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 78 [2024-11-08 18:19:54,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 223 flow. Second operand has 12 states, 12 states have (on average 35.333333333333336) internal successors, (424), 12 states have internal predecessors, (424), 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) [2024-11-08 18:19:54,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:54,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 78 [2024-11-08 18:19:54,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:55,588 INFO L124 PetriNetUnfolderBase]: 423/871 cut-off events. [2024-11-08 18:19:55,588 INFO L125 PetriNetUnfolderBase]: For 459/459 co-relation queries the response was YES. [2024-11-08 18:19:55,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 871 events. 423/871 cut-off events. For 459/459 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4124 event pairs, 25 based on Foata normal form. 12/817 useless extension candidates. Maximal degree in co-relation 2061. Up to 473 conditions per place. [2024-11-08 18:19:55,594 INFO L140 encePairwiseOnDemand]: 59/78 looper letters, 87 selfloop transitions, 54 changer transitions 19/172 dead transitions. [2024-11-08 18:19:55,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 172 transitions, 917 flow [2024-11-08 18:19:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 18:19:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-08 18:19:55,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1009 transitions. [2024-11-08 18:19:55,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5174358974358975 [2024-11-08 18:19:55,598 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 223 flow. Second operand 25 states and 1009 transitions. [2024-11-08 18:19:55,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 172 transitions, 917 flow [2024-11-08 18:19:55,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 172 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:55,605 INFO L231 Difference]: Finished difference. Result has 92 places, 107 transitions, 555 flow [2024-11-08 18:19:55,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=555, PETRI_PLACES=92, PETRI_TRANSITIONS=107} [2024-11-08 18:19:55,605 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 22 predicate places. [2024-11-08 18:19:55,606 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 107 transitions, 555 flow [2024-11-08 18:19:55,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 35.333333333333336) internal successors, (424), 12 states have internal predecessors, (424), 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) [2024-11-08 18:19:55,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:55,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:55,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:19:55,607 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:55,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:55,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1025360802, now seen corresponding path program 2 times [2024-11-08 18:19:55,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:55,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638612150] [2024-11-08 18:19:55,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:55,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:56,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:56,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638612150] [2024-11-08 18:19:56,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638612150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:56,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:56,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:19:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917342069] [2024-11-08 18:19:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:56,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:19:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:19:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:19:56,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:19:56,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 107 transitions, 555 flow. Second operand has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:19:56,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:56,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:19:56,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:57,000 INFO L124 PetriNetUnfolderBase]: 401/880 cut-off events. [2024-11-08 18:19:57,001 INFO L125 PetriNetUnfolderBase]: For 862/880 co-relation queries the response was YES. [2024-11-08 18:19:57,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 880 events. 401/880 cut-off events. For 862/880 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4635 event pairs, 102 based on Foata normal form. 21/830 useless extension candidates. Maximal degree in co-relation 2529. Up to 409 conditions per place. [2024-11-08 18:19:57,008 INFO L140 encePairwiseOnDemand]: 65/78 looper letters, 80 selfloop transitions, 44 changer transitions 22/166 dead transitions. [2024-11-08 18:19:57,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 166 transitions, 1107 flow [2024-11-08 18:19:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:19:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:19:57,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 520 transitions. [2024-11-08 18:19:57,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-08 18:19:57,011 INFO L175 Difference]: Start difference. First operand has 92 places, 107 transitions, 555 flow. Second operand 11 states and 520 transitions. [2024-11-08 18:19:57,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 166 transitions, 1107 flow [2024-11-08 18:19:57,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 166 transitions, 1011 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-11-08 18:19:57,058 INFO L231 Difference]: Finished difference. Result has 97 places, 121 transitions, 725 flow [2024-11-08 18:19:57,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=725, PETRI_PLACES=97, PETRI_TRANSITIONS=121} [2024-11-08 18:19:57,059 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 27 predicate places. [2024-11-08 18:19:57,059 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 121 transitions, 725 flow [2024-11-08 18:19:57,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:19:57,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:57,060 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:57,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:19:57,060 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:57,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:57,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1907209570, now seen corresponding path program 3 times [2024-11-08 18:19:57,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:57,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151036371] [2024-11-08 18:19:57,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:57,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:57,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151036371] [2024-11-08 18:19:57,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151036371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:57,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:57,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:19:57,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051018012] [2024-11-08 18:19:57,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:57,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:19:57,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:57,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:19:57,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:19:58,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 78 [2024-11-08 18:19:58,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 121 transitions, 725 flow. Second operand has 12 states, 12 states have (on average 35.333333333333336) internal successors, (424), 12 states have internal predecessors, (424), 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) [2024-11-08 18:19:58,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:58,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 78 [2024-11-08 18:19:58,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:59,613 INFO L124 PetriNetUnfolderBase]: 553/1148 cut-off events. [2024-11-08 18:19:59,613 INFO L125 PetriNetUnfolderBase]: For 1457/1457 co-relation queries the response was YES. [2024-11-08 18:19:59,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3600 conditions, 1148 events. 553/1148 cut-off events. For 1457/1457 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5984 event pairs, 49 based on Foata normal form. 15/1080 useless extension candidates. Maximal degree in co-relation 3575. Up to 517 conditions per place. [2024-11-08 18:19:59,623 INFO L140 encePairwiseOnDemand]: 59/78 looper letters, 111 selfloop transitions, 78 changer transitions 21/222 dead transitions. [2024-11-08 18:19:59,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 222 transitions, 1657 flow [2024-11-08 18:19:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:19:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:19:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 779 transitions. [2024-11-08 18:19:59,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5548433048433048 [2024-11-08 18:19:59,626 INFO L175 Difference]: Start difference. First operand has 97 places, 121 transitions, 725 flow. Second operand 18 states and 779 transitions. [2024-11-08 18:19:59,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 222 transitions, 1657 flow [2024-11-08 18:19:59,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 222 transitions, 1589 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-08 18:19:59,640 INFO L231 Difference]: Finished difference. Result has 116 places, 155 transitions, 1212 flow [2024-11-08 18:19:59,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1212, PETRI_PLACES=116, PETRI_TRANSITIONS=155} [2024-11-08 18:19:59,641 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 46 predicate places. [2024-11-08 18:19:59,642 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 155 transitions, 1212 flow [2024-11-08 18:19:59,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 35.333333333333336) internal successors, (424), 12 states have internal predecessors, (424), 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) [2024-11-08 18:19:59,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:59,642 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:59,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:19:59,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:19:59,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 461951040, now seen corresponding path program 4 times [2024-11-08 18:19:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:59,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947911039] [2024-11-08 18:19:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:59,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:00,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:00,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947911039] [2024-11-08 18:20:00,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947911039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:00,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:00,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:20:00,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615601074] [2024-11-08 18:20:00,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:00,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:00,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:00,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:00,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:00,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:00,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 155 transitions, 1212 flow. Second operand has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:00,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:00,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:00,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:00,962 INFO L124 PetriNetUnfolderBase]: 422/943 cut-off events. [2024-11-08 18:20:00,962 INFO L125 PetriNetUnfolderBase]: For 1737/1764 co-relation queries the response was YES. [2024-11-08 18:20:00,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 943 events. 422/943 cut-off events. For 1737/1764 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4963 event pairs, 137 based on Foata normal form. 30/907 useless extension candidates. Maximal degree in co-relation 3138. Up to 457 conditions per place. [2024-11-08 18:20:00,991 INFO L140 encePairwiseOnDemand]: 64/78 looper letters, 84 selfloop transitions, 56 changer transitions 9/171 dead transitions. [2024-11-08 18:20:00,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 171 transitions, 1428 flow [2024-11-08 18:20:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:20:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:20:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 514 transitions. [2024-11-08 18:20:00,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5990675990675991 [2024-11-08 18:20:00,995 INFO L175 Difference]: Start difference. First operand has 116 places, 155 transitions, 1212 flow. Second operand 11 states and 514 transitions. [2024-11-08 18:20:00,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 171 transitions, 1428 flow [2024-11-08 18:20:01,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 171 transitions, 1411 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-08 18:20:01,012 INFO L231 Difference]: Finished difference. Result has 124 places, 141 transitions, 1142 flow [2024-11-08 18:20:01,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1142, PETRI_PLACES=124, PETRI_TRANSITIONS=141} [2024-11-08 18:20:01,013 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 54 predicate places. [2024-11-08 18:20:01,014 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 141 transitions, 1142 flow [2024-11-08 18:20:01,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:01,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:01,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:01,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:20:01,015 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:01,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1764891618, now seen corresponding path program 5 times [2024-11-08 18:20:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827966179] [2024-11-08 18:20:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:01,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:01,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827966179] [2024-11-08 18:20:01,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827966179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:01,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:01,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:20:01,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809159983] [2024-11-08 18:20:01,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:01,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:01,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:01,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:01,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:01,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:01,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 141 transitions, 1142 flow. Second operand has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:01,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:01,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:01,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:02,497 INFO L124 PetriNetUnfolderBase]: 416/929 cut-off events. [2024-11-08 18:20:02,497 INFO L125 PetriNetUnfolderBase]: For 2178/2201 co-relation queries the response was YES. [2024-11-08 18:20:02,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 929 events. 416/929 cut-off events. For 2178/2201 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4866 event pairs, 131 based on Foata normal form. 29/893 useless extension candidates. Maximal degree in co-relation 3238. Up to 457 conditions per place. [2024-11-08 18:20:02,505 INFO L140 encePairwiseOnDemand]: 64/78 looper letters, 84 selfloop transitions, 60 changer transitions 11/177 dead transitions. [2024-11-08 18:20:02,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 177 transitions, 1590 flow [2024-11-08 18:20:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:20:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-08 18:20:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 636 transitions. [2024-11-08 18:20:02,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5824175824175825 [2024-11-08 18:20:02,508 INFO L175 Difference]: Start difference. First operand has 124 places, 141 transitions, 1142 flow. Second operand 14 states and 636 transitions. [2024-11-08 18:20:02,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 177 transitions, 1590 flow [2024-11-08 18:20:02,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 177 transitions, 1450 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-08 18:20:02,529 INFO L231 Difference]: Finished difference. Result has 126 places, 140 transitions, 1135 flow [2024-11-08 18:20:02,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1135, PETRI_PLACES=126, PETRI_TRANSITIONS=140} [2024-11-08 18:20:02,530 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 56 predicate places. [2024-11-08 18:20:02,531 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 140 transitions, 1135 flow [2024-11-08 18:20:02,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:02,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:02,531 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:02,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:20:02,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:02,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1247470110, now seen corresponding path program 6 times [2024-11-08 18:20:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:02,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799831151] [2024-11-08 18:20:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:02,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:02,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799831151] [2024-11-08 18:20:02,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799831151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:02,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:02,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:02,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958348420] [2024-11-08 18:20:02,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:02,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:20:02,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:20:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:20:03,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:03,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 140 transitions, 1135 flow. Second operand has 10 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 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) [2024-11-08 18:20:03,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:03,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:03,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:04,645 INFO L124 PetriNetUnfolderBase]: 1266/2686 cut-off events. [2024-11-08 18:20:04,645 INFO L125 PetriNetUnfolderBase]: For 4446/4495 co-relation queries the response was YES. [2024-11-08 18:20:04,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8502 conditions, 2686 events. 1266/2686 cut-off events. For 4446/4495 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 16230 event pairs, 206 based on Foata normal form. 51/2526 useless extension candidates. Maximal degree in co-relation 8468. Up to 626 conditions per place. [2024-11-08 18:20:04,669 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 334 selfloop transitions, 100 changer transitions 14/468 dead transitions. [2024-11-08 18:20:04,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 468 transitions, 3793 flow [2024-11-08 18:20:04,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:20:04,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-08 18:20:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1014 transitions. [2024-11-08 18:20:04,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-08 18:20:04,672 INFO L175 Difference]: Start difference. First operand has 126 places, 140 transitions, 1135 flow. Second operand 20 states and 1014 transitions. [2024-11-08 18:20:04,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 468 transitions, 3793 flow [2024-11-08 18:20:04,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 468 transitions, 3410 flow, removed 20 selfloop flow, removed 18 redundant places. [2024-11-08 18:20:04,724 INFO L231 Difference]: Finished difference. Result has 140 places, 217 transitions, 1683 flow [2024-11-08 18:20:04,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1683, PETRI_PLACES=140, PETRI_TRANSITIONS=217} [2024-11-08 18:20:04,725 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 70 predicate places. [2024-11-08 18:20:04,725 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 217 transitions, 1683 flow [2024-11-08 18:20:04,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 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) [2024-11-08 18:20:04,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:04,726 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:04,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:20:04,726 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:04,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1246330015, now seen corresponding path program 1 times [2024-11-08 18:20:04,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:04,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929967205] [2024-11-08 18:20:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:05,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929967205] [2024-11-08 18:20:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929967205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:05,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:05,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:20:05,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321374175] [2024-11-08 18:20:05,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:05,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:20:05,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:20:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:20:05,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 78 [2024-11-08 18:20:05,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 217 transitions, 1683 flow. Second operand has 10 states, 10 states have (on average 37.5) internal successors, (375), 10 states have internal predecessors, (375), 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) [2024-11-08 18:20:05,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:05,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 78 [2024-11-08 18:20:05,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:06,869 INFO L124 PetriNetUnfolderBase]: 1483/3095 cut-off events. [2024-11-08 18:20:06,870 INFO L125 PetriNetUnfolderBase]: For 9134/9189 co-relation queries the response was YES. [2024-11-08 18:20:06,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11749 conditions, 3095 events. 1483/3095 cut-off events. For 9134/9189 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 18635 event pairs, 515 based on Foata normal form. 63/2920 useless extension candidates. Maximal degree in co-relation 11706. Up to 1682 conditions per place. [2024-11-08 18:20:06,909 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 277 selfloop transitions, 116 changer transitions 8/420 dead transitions. [2024-11-08 18:20:06,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 420 transitions, 3802 flow [2024-11-08 18:20:06,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 18:20:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-08 18:20:06,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1117 transitions. [2024-11-08 18:20:06,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5728205128205128 [2024-11-08 18:20:06,912 INFO L175 Difference]: Start difference. First operand has 140 places, 217 transitions, 1683 flow. Second operand 25 states and 1117 transitions. [2024-11-08 18:20:06,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 420 transitions, 3802 flow [2024-11-08 18:20:06,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 420 transitions, 3668 flow, removed 56 selfloop flow, removed 3 redundant places. [2024-11-08 18:20:06,968 INFO L231 Difference]: Finished difference. Result has 170 places, 275 transitions, 2427 flow [2024-11-08 18:20:06,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2427, PETRI_PLACES=170, PETRI_TRANSITIONS=275} [2024-11-08 18:20:06,969 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 100 predicate places. [2024-11-08 18:20:06,970 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 275 transitions, 2427 flow [2024-11-08 18:20:06,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.5) internal successors, (375), 10 states have internal predecessors, (375), 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) [2024-11-08 18:20:06,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:06,970 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:06,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:20:06,971 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:06,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash 352666988, now seen corresponding path program 7 times [2024-11-08 18:20:06,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:06,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101395741] [2024-11-08 18:20:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:07,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:07,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101395741] [2024-11-08 18:20:07,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101395741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:07,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:07,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:20:07,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194772216] [2024-11-08 18:20:07,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:07,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:20:07,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:07,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:20:07,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:20:07,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:07,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 275 transitions, 2427 flow. Second operand has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:07,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:07,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:07,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:08,461 INFO L124 PetriNetUnfolderBase]: 1125/2382 cut-off events. [2024-11-08 18:20:08,461 INFO L125 PetriNetUnfolderBase]: For 7865/7912 co-relation queries the response was YES. [2024-11-08 18:20:08,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9399 conditions, 2382 events. 1125/2382 cut-off events. For 7865/7912 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 13704 event pairs, 508 based on Foata normal form. 37/2223 useless extension candidates. Maximal degree in co-relation 9354. Up to 1707 conditions per place. [2024-11-08 18:20:08,484 INFO L140 encePairwiseOnDemand]: 65/78 looper letters, 144 selfloop transitions, 37 changer transitions 7/213 dead transitions. [2024-11-08 18:20:08,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 213 transitions, 1962 flow [2024-11-08 18:20:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:20:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 18:20:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 482 transitions. [2024-11-08 18:20:08,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5617715617715617 [2024-11-08 18:20:08,486 INFO L175 Difference]: Start difference. First operand has 170 places, 275 transitions, 2427 flow. Second operand 11 states and 482 transitions. [2024-11-08 18:20:08,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 213 transitions, 1962 flow [2024-11-08 18:20:08,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 213 transitions, 1868 flow, removed 12 selfloop flow, removed 12 redundant places. [2024-11-08 18:20:08,531 INFO L231 Difference]: Finished difference. Result has 148 places, 184 transitions, 1402 flow [2024-11-08 18:20:08,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1402, PETRI_PLACES=148, PETRI_TRANSITIONS=184} [2024-11-08 18:20:08,532 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 78 predicate places. [2024-11-08 18:20:08,532 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 184 transitions, 1402 flow [2024-11-08 18:20:08,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 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) [2024-11-08 18:20:08,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:08,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:08,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:20:08,534 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:08,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash 258833317, now seen corresponding path program 1 times [2024-11-08 18:20:08,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:08,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066716208] [2024-11-08 18:20:08,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066716208] [2024-11-08 18:20:08,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066716208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:08,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:20:08,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519974991] [2024-11-08 18:20:08,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:08,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:20:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:20:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:20:09,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:09,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 184 transitions, 1402 flow. Second operand has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:09,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:09,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:09,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:10,979 INFO L124 PetriNetUnfolderBase]: 1754/3685 cut-off events. [2024-11-08 18:20:10,979 INFO L125 PetriNetUnfolderBase]: For 9837/9876 co-relation queries the response was YES. [2024-11-08 18:20:10,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13615 conditions, 3685 events. 1754/3685 cut-off events. For 9837/9876 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23764 event pairs, 605 based on Foata normal form. 21/3439 useless extension candidates. Maximal degree in co-relation 13576. Up to 2038 conditions per place. [2024-11-08 18:20:11,003 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 316 selfloop transitions, 85 changer transitions 0/418 dead transitions. [2024-11-08 18:20:11,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 418 transitions, 3649 flow [2024-11-08 18:20:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:20:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-08 18:20:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 950 transitions. [2024-11-08 18:20:11,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-11-08 18:20:11,006 INFO L175 Difference]: Start difference. First operand has 148 places, 184 transitions, 1402 flow. Second operand 19 states and 950 transitions. [2024-11-08 18:20:11,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 418 transitions, 3649 flow [2024-11-08 18:20:11,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 418 transitions, 3428 flow, removed 35 selfloop flow, removed 15 redundant places. [2024-11-08 18:20:11,060 INFO L231 Difference]: Finished difference. Result has 162 places, 257 transitions, 2157 flow [2024-11-08 18:20:11,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2157, PETRI_PLACES=162, PETRI_TRANSITIONS=257} [2024-11-08 18:20:11,060 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 92 predicate places. [2024-11-08 18:20:11,061 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 257 transitions, 2157 flow [2024-11-08 18:20:11,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:11,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:11,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:11,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:20:11,062 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:11,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash 257693222, now seen corresponding path program 1 times [2024-11-08 18:20:11,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:11,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368581605] [2024-11-08 18:20:11,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:11,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:11,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:11,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368581605] [2024-11-08 18:20:11,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368581605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:11,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:11,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:20:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911584594] [2024-11-08 18:20:11,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:11,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:20:11,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:20:11,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:20:11,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 78 [2024-11-08 18:20:11,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 257 transitions, 2157 flow. Second operand has 11 states, 11 states have (on average 37.45454545454545) internal successors, (412), 11 states have internal predecessors, (412), 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) [2024-11-08 18:20:11,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:11,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 78 [2024-11-08 18:20:11,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:13,302 INFO L124 PetriNetUnfolderBase]: 1942/4046 cut-off events. [2024-11-08 18:20:13,302 INFO L125 PetriNetUnfolderBase]: For 20842/20911 co-relation queries the response was YES. [2024-11-08 18:20:13,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17478 conditions, 4046 events. 1942/4046 cut-off events. For 20842/20911 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 26483 event pairs, 895 based on Foata normal form. 63/3803 useless extension candidates. Maximal degree in co-relation 17431. Up to 2794 conditions per place. [2024-11-08 18:20:13,334 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 284 selfloop transitions, 61 changer transitions 6/373 dead transitions. [2024-11-08 18:20:13,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 373 transitions, 3734 flow [2024-11-08 18:20:13,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:20:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 18:20:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 788 transitions. [2024-11-08 18:20:13,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5612535612535613 [2024-11-08 18:20:13,337 INFO L175 Difference]: Start difference. First operand has 162 places, 257 transitions, 2157 flow. Second operand 18 states and 788 transitions. [2024-11-08 18:20:13,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 373 transitions, 3734 flow [2024-11-08 18:20:13,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 373 transitions, 3480 flow, removed 126 selfloop flow, removed 1 redundant places. [2024-11-08 18:20:13,423 INFO L231 Difference]: Finished difference. Result has 187 places, 285 transitions, 2473 flow [2024-11-08 18:20:13,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=2021, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2473, PETRI_PLACES=187, PETRI_TRANSITIONS=285} [2024-11-08 18:20:13,424 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 117 predicate places. [2024-11-08 18:20:13,424 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 285 transitions, 2473 flow [2024-11-08 18:20:13,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 37.45454545454545) internal successors, (412), 11 states have internal predecessors, (412), 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) [2024-11-08 18:20:13,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:13,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:13,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:20:13,425 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:13,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1080756142, now seen corresponding path program 2 times [2024-11-08 18:20:13,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:13,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5888759] [2024-11-08 18:20:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:13,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5888759] [2024-11-08 18:20:13,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5888759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:13,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:13,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:20:13,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750851696] [2024-11-08 18:20:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:13,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:20:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:20:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:20:13,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 78 [2024-11-08 18:20:13,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 285 transitions, 2473 flow. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 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) [2024-11-08 18:20:13,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:13,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 78 [2024-11-08 18:20:13,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:14,622 INFO L124 PetriNetUnfolderBase]: 2333/4795 cut-off events. [2024-11-08 18:20:14,622 INFO L125 PetriNetUnfolderBase]: For 27449/27518 co-relation queries the response was YES. [2024-11-08 18:20:14,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21692 conditions, 4795 events. 2333/4795 cut-off events. For 27449/27518 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 32253 event pairs, 393 based on Foata normal form. 135/4555 useless extension candidates. Maximal degree in co-relation 21636. Up to 2081 conditions per place. [2024-11-08 18:20:14,777 INFO L140 encePairwiseOnDemand]: 64/78 looper letters, 346 selfloop transitions, 120 changer transitions 0/492 dead transitions. [2024-11-08 18:20:14,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 492 transitions, 5172 flow [2024-11-08 18:20:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:20:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:20:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 340 transitions. [2024-11-08 18:20:14,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227106227106227 [2024-11-08 18:20:14,779 INFO L175 Difference]: Start difference. First operand has 187 places, 285 transitions, 2473 flow. Second operand 7 states and 340 transitions. [2024-11-08 18:20:14,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 492 transitions, 5172 flow [2024-11-08 18:20:15,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 492 transitions, 5113 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-08 18:20:15,059 INFO L231 Difference]: Finished difference. Result has 194 places, 345 transitions, 3528 flow [2024-11-08 18:20:15,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=2426, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3528, PETRI_PLACES=194, PETRI_TRANSITIONS=345} [2024-11-08 18:20:15,060 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 124 predicate places. [2024-11-08 18:20:15,061 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 345 transitions, 3528 flow [2024-11-08 18:20:15,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 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) [2024-11-08 18:20:15,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:15,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:15,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:20:15,061 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:15,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1632132729, now seen corresponding path program 2 times [2024-11-08 18:20:15,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:15,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067473693] [2024-11-08 18:20:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:15,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:15,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:15,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067473693] [2024-11-08 18:20:15,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067473693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:15,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:15,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:20:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309661705] [2024-11-08 18:20:15,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:15,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:20:15,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:15,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:20:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:20:15,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:15,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 345 transitions, 3528 flow. Second operand has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:15,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:15,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:15,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:18,232 INFO L124 PetriNetUnfolderBase]: 3463/7092 cut-off events. [2024-11-08 18:20:18,232 INFO L125 PetriNetUnfolderBase]: For 55768/55845 co-relation queries the response was YES. [2024-11-08 18:20:18,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35420 conditions, 7092 events. 3463/7092 cut-off events. For 55768/55845 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 52375 event pairs, 460 based on Foata normal form. 58/6636 useless extension candidates. Maximal degree in co-relation 35360. Up to 2005 conditions per place. [2024-11-08 18:20:18,289 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 468 selfloop transitions, 265 changer transitions 0/752 dead transitions. [2024-11-08 18:20:18,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 752 transitions, 9181 flow [2024-11-08 18:20:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:20:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-08 18:20:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1026 transitions. [2024-11-08 18:20:18,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6576923076923077 [2024-11-08 18:20:18,292 INFO L175 Difference]: Start difference. First operand has 194 places, 345 transitions, 3528 flow. Second operand 20 states and 1026 transitions. [2024-11-08 18:20:18,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 752 transitions, 9181 flow [2024-11-08 18:20:18,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 752 transitions, 8834 flow, removed 170 selfloop flow, removed 2 redundant places. [2024-11-08 18:20:18,708 INFO L231 Difference]: Finished difference. Result has 225 places, 477 transitions, 5770 flow [2024-11-08 18:20:18,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=3417, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5770, PETRI_PLACES=225, PETRI_TRANSITIONS=477} [2024-11-08 18:20:18,710 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 155 predicate places. [2024-11-08 18:20:18,710 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 477 transitions, 5770 flow [2024-11-08 18:20:18,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:18,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:18,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:18,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:20:18,712 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:18,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1674190299, now seen corresponding path program 3 times [2024-11-08 18:20:18,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:18,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029040187] [2024-11-08 18:20:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:19,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:19,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029040187] [2024-11-08 18:20:19,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029040187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:19,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:19,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:20:19,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635250001] [2024-11-08 18:20:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:19,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:20:19,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:20:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:20:19,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:19,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 477 transitions, 5770 flow. Second operand has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:19,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:19,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:19,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:22,962 INFO L124 PetriNetUnfolderBase]: 4545/9280 cut-off events. [2024-11-08 18:20:22,962 INFO L125 PetriNetUnfolderBase]: For 110150/110315 co-relation queries the response was YES. [2024-11-08 18:20:23,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51686 conditions, 9280 events. 4545/9280 cut-off events. For 110150/110315 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 72936 event pairs, 458 based on Foata normal form. 145/8734 useless extension candidates. Maximal degree in co-relation 51612. Up to 2638 conditions per place. [2024-11-08 18:20:23,075 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 514 selfloop transitions, 564 changer transitions 0/1097 dead transitions. [2024-11-08 18:20:23,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 1097 transitions, 15559 flow [2024-11-08 18:20:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 18:20:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-08 18:20:23,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1272 transitions. [2024-11-08 18:20:23,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6272189349112426 [2024-11-08 18:20:23,082 INFO L175 Difference]: Start difference. First operand has 225 places, 477 transitions, 5770 flow. Second operand 26 states and 1272 transitions. [2024-11-08 18:20:23,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 1097 transitions, 15559 flow [2024-11-08 18:20:23,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 1097 transitions, 14977 flow, removed 290 selfloop flow, removed 1 redundant places. [2024-11-08 18:20:23,764 INFO L231 Difference]: Finished difference. Result has 267 places, 759 transitions, 11205 flow [2024-11-08 18:20:23,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=5292, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=11205, PETRI_PLACES=267, PETRI_TRANSITIONS=759} [2024-11-08 18:20:23,765 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 197 predicate places. [2024-11-08 18:20:23,765 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 759 transitions, 11205 flow [2024-11-08 18:20:23,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.54545454545455) internal successors, (424), 11 states have internal predecessors, (424), 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) [2024-11-08 18:20:23,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:23,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:23,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:20:23,766 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:23,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1074349696, now seen corresponding path program 1 times [2024-11-08 18:20:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:23,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655910625] [2024-11-08 18:20:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:23,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655910625] [2024-11-08 18:20:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655910625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:24,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:24,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:20:24,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445846283] [2024-11-08 18:20:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:24,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:20:24,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:24,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:20:24,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:20:24,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 78 [2024-11-08 18:20:24,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 759 transitions, 11205 flow. Second operand has 11 states, 11 states have (on average 38.63636363636363) internal successors, (425), 11 states have internal predecessors, (425), 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) [2024-11-08 18:20:24,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:24,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 78 [2024-11-08 18:20:24,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:28,720 INFO L124 PetriNetUnfolderBase]: 5577/11533 cut-off events. [2024-11-08 18:20:28,720 INFO L125 PetriNetUnfolderBase]: For 197384/197586 co-relation queries the response was YES. [2024-11-08 18:20:28,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68193 conditions, 11533 events. 5577/11533 cut-off events. For 197384/197586 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 95807 event pairs, 534 based on Foata normal form. 198/11054 useless extension candidates. Maximal degree in co-relation 68100. Up to 3236 conditions per place. [2024-11-08 18:20:28,822 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 493 selfloop transitions, 795 changer transitions 2/1309 dead transitions. [2024-11-08 18:20:28,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 1309 transitions, 21590 flow [2024-11-08 18:20:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:20:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-08 18:20:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 969 transitions. [2024-11-08 18:20:28,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6211538461538462 [2024-11-08 18:20:28,825 INFO L175 Difference]: Start difference. First operand has 267 places, 759 transitions, 11205 flow. Second operand 20 states and 969 transitions. [2024-11-08 18:20:28,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 1309 transitions, 21590 flow [2024-11-08 18:20:29,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1309 transitions, 20727 flow, removed 392 selfloop flow, removed 2 redundant places. [2024-11-08 18:20:29,850 INFO L231 Difference]: Finished difference. Result has 297 places, 1058 transitions, 18131 flow [2024-11-08 18:20:29,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=10275, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=490, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=18131, PETRI_PLACES=297, PETRI_TRANSITIONS=1058} [2024-11-08 18:20:29,851 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 227 predicate places. [2024-11-08 18:20:29,851 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 1058 transitions, 18131 flow [2024-11-08 18:20:29,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.63636363636363) internal successors, (425), 11 states have internal predecessors, (425), 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) [2024-11-08 18:20:29,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:29,851 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:29,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:20:29,852 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:29,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:29,852 INFO L85 PathProgramCache]: Analyzing trace with hash 989082863, now seen corresponding path program 1 times [2024-11-08 18:20:29,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:29,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292175441] [2024-11-08 18:20:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:29,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:30,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292175441] [2024-11-08 18:20:30,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292175441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:20:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357144849] [2024-11-08 18:20:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:30,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:20:30,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:20:30,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:20:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:30,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 18:20:30,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:20:31,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:20:31,293 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:20:31,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 11 [2024-11-08 18:20:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:31,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:20:31,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2024-11-08 18:20:31,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-08 18:20:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357144849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:20:32,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:20:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 7] total 25 [2024-11-08 18:20:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251073135] [2024-11-08 18:20:32,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:20:32,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 18:20:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:32,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 18:20:32,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:20:33,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 78 [2024-11-08 18:20:33,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 1058 transitions, 18131 flow. Second operand has 26 states, 26 states have (on average 36.53846153846154) internal successors, (950), 26 states have internal predecessors, (950), 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) [2024-11-08 18:20:33,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:33,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 78 [2024-11-08 18:20:33,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:49,684 INFO L124 PetriNetUnfolderBase]: 10388/21423 cut-off events. [2024-11-08 18:20:49,685 INFO L125 PetriNetUnfolderBase]: For 431745/431815 co-relation queries the response was YES. [2024-11-08 18:20:49,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139831 conditions, 21423 events. 10388/21423 cut-off events. For 431745/431815 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 176729 event pairs, 631 based on Foata normal form. 458/20722 useless extension candidates. Maximal degree in co-relation 139724. Up to 5939 conditions per place. [2024-11-08 18:20:49,950 INFO L140 encePairwiseOnDemand]: 52/78 looper letters, 1751 selfloop transitions, 1462 changer transitions 0/3225 dead transitions. [2024-11-08 18:20:49,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 3225 transitions, 61343 flow [2024-11-08 18:20:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-08 18:20:49,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2024-11-08 18:20:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 3311 transitions. [2024-11-08 18:20:49,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-08 18:20:49,957 INFO L175 Difference]: Start difference. First operand has 297 places, 1058 transitions, 18131 flow. Second operand 77 states and 3311 transitions. [2024-11-08 18:20:49,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 3225 transitions, 61343 flow [2024-11-08 18:20:53,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 3225 transitions, 57111 flow, removed 1786 selfloop flow, removed 4 redundant places. [2024-11-08 18:20:54,021 INFO L231 Difference]: Finished difference. Result has 429 places, 2101 transitions, 40166 flow [2024-11-08 18:20:54,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=16778, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=493, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=77, PETRI_FLOW=40166, PETRI_PLACES=429, PETRI_TRANSITIONS=2101} [2024-11-08 18:20:54,022 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 359 predicate places. [2024-11-08 18:20:54,022 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 2101 transitions, 40166 flow [2024-11-08 18:20:54,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 36.53846153846154) internal successors, (950), 26 states have internal predecessors, (950), 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) [2024-11-08 18:20:54,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:54,023 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:54,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:20:54,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:54,224 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting workerErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:20:54,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:54,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1500662949, now seen corresponding path program 2 times [2024-11-08 18:20:54,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:54,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966275113] [2024-11-08 18:20:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:54,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:20:54,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:54,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966275113] [2024-11-08 18:20:54,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966275113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:20:54,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241692389] [2024-11-08 18:20:54,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:20:54,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:54,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:20:54,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:20:54,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:20:54,918 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:20:54,918 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:20:54,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:20:54,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:20:54,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:20:55,031 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-08 18:20:55,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 18:20:55,178 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-08 18:20:55,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:20:55,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:20:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:20:55,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:20:55,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2024-11-08 18:20:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:20:55,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241692389] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:20:55,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:20:55,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14, 9] total 28 [2024-11-08 18:20:55,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305438886] [2024-11-08 18:20:55,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:55,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:20:55,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:55,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:20:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:20:55,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 78 [2024-11-08 18:20:55,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 2101 transitions, 40166 flow. Second operand has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 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) [2024-11-08 18:20:55,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:55,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 78 [2024-11-08 18:20:55,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:21:01,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:21:24,173 INFO L124 PetriNetUnfolderBase]: 14606/30707 cut-off events. [2024-11-08 18:21:24,173 INFO L125 PetriNetUnfolderBase]: For 754178/754660 co-relation queries the response was YES. [2024-11-08 18:21:24,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236629 conditions, 30707 events. 14606/30707 cut-off events. For 754178/754660 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 280405 event pairs, 1941 based on Foata normal form. 278/29186 useless extension candidates. Maximal degree in co-relation 236463. Up to 10409 conditions per place. [2024-11-08 18:21:24,810 INFO L140 encePairwiseOnDemand]: 63/78 looper letters, 2675 selfloop transitions, 1193 changer transitions 0/4038 dead transitions. [2024-11-08 18:21:24,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 4038 transitions, 83210 flow [2024-11-08 18:21:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:21:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 18:21:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 816 transitions. [2024-11-08 18:21:24,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-11-08 18:21:24,813 INFO L175 Difference]: Start difference. First operand has 429 places, 2101 transitions, 40166 flow. Second operand 17 states and 816 transitions. [2024-11-08 18:21:24,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 4038 transitions, 83210 flow [2024-11-08 18:21:35,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 4038 transitions, 79829 flow, removed 1680 selfloop flow, removed 4 redundant places. [2024-11-08 18:21:35,509 INFO L231 Difference]: Finished difference. Result has 456 places, 3231 transitions, 63843 flow [2024-11-08 18:21:35,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=37933, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=63843, PETRI_PLACES=456, PETRI_TRANSITIONS=3231} [2024-11-08 18:21:35,511 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 386 predicate places. [2024-11-08 18:21:35,511 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 3231 transitions, 63843 flow [2024-11-08 18:21:35,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 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) [2024-11-08 18:21:35,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:21:35,512 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:21:35,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:21:35,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:21:35,712 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting workerErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (and 35 more)] === [2024-11-08 18:21:35,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -237834596, now seen corresponding path program 2 times [2024-11-08 18:21:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:35,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763876504] [2024-11-08 18:21:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:35,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:21:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:21:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:21:36,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:21:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763876504] [2024-11-08 18:21:36,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763876504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:21:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887426728] [2024-11-08 18:21:36,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:21:36,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:21:36,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:21:36,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:21:36,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57695a23-f244-443b-a5a9-85939d47b7db/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:21:36,514 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:21:36,514 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:21:36,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:21:36,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:21:36,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:21:36,894 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:21:36,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2024-11-08 18:21:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:21:36,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:21:37,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2024-11-08 18:21:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:21:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887426728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:21:37,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:21:37,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 23 [2024-11-08 18:21:37,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748978372] [2024-11-08 18:21:37,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:21:37,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:21:37,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:21:37,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:21:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:21:40,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 78 [2024-11-08 18:21:40,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 3231 transitions, 63843 flow. Second operand has 24 states, 24 states have (on average 38.75) internal successors, (930), 24 states have internal predecessors, (930), 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) [2024-11-08 18:21:40,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:21:40,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 78 [2024-11-08 18:21:40,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand