./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu --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 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:19,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:19,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:34:19,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:19,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:19,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:19,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:19,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:19,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:19,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:19,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:19,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:19,880 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:19,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:19,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:19,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:19,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:19,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:19,884 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:34:19,884 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:34:19,884 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:34:19,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:19,886 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:34:19,886 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:19,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:19,887 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:19,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:19,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:19,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:19,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:19,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:19,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:19,890 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:19,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:19,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:19,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:19,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:19,892 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:19,893 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_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 [2023-11-19 07:34:20,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:20,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:20,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:20,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:20,146 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:20,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2023-11-19 07:34:23,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:23,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:23,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2023-11-19 07:34:23,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/data/fa0dd63b1/766e7b40956e47bca2c8bcbb7d00bc56/FLAGba7629b02 [2023-11-19 07:34:23,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/data/fa0dd63b1/766e7b40956e47bca2c8bcbb7d00bc56 [2023-11-19 07:34:23,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:23,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:23,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:23,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:23,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:23,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:23" (1/1) ... [2023-11-19 07:34:23,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578e7dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:23, skipping insertion in model container [2023-11-19 07:34:23,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:23" (1/1) ... [2023-11-19 07:34:23,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:24,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:24,322 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:24,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:24,477 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:34:24,478 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:34:24,486 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:24,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24 WrapperNode [2023-11-19 07:34:24,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:24,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:24,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:24,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:24,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,587 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-19 07:34:24,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:24,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:24,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:24,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:24,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:24,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:24,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:24,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:24,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (1/1) ... [2023-11-19 07:34:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:24,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:24,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae5ed82-d696-486d-8b50-2a4d0802a3dd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:24,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:24,751 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:34:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:34:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:34:24,752 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:34:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:34:24,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:24,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:34:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:24,757 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:34:24,920 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:24,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:25,396 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:25,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:25,556 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:34:25,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:25 BoogieIcfgContainer [2023-11-19 07:34:25,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:25,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:25,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:25,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:25,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:23" (1/3) ... [2023-11-19 07:34:25,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa3a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:25, skipping insertion in model container [2023-11-19 07:34:25,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:24" (2/3) ... [2023-11-19 07:34:25,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa3a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:25, skipping insertion in model container [2023-11-19 07:34:25,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:25" (3/3) ... [2023-11-19 07:34:25,570 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.oepc.i [2023-11-19 07:34:25,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:25,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:34:25,593 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:34:25,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:34:25,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 154 transitions, 324 flow [2023-11-19 07:34:25,936 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-19 07:34:25,937 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:25,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 4/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2023-11-19 07:34:25,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 154 transitions, 324 flow [2023-11-19 07:34:25,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 312 flow [2023-11-19 07:34:25,962 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:34:25,981 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 150 transitions, 312 flow [2023-11-19 07:34:25,986 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 150 transitions, 312 flow [2023-11-19 07:34:25,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 150 transitions, 312 flow [2023-11-19 07:34:26,046 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-19 07:34:26,052 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:26,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 4/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2023-11-19 07:34:26,058 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380 [2023-11-19 07:34:31,944 INFO L134 LiptonReduction]: Checked pairs total: 10290 [2023-11-19 07:34:31,945 INFO L136 LiptonReduction]: Total number of compositions: 152 [2023-11-19 07:34:31,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:31,967 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@72a1734a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:31,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 07:34:31,969 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:34:31,969 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:34:31,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:31,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:31,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:34:31,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:31,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash 669, now seen corresponding path program 1 times [2023-11-19 07:34:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:31,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924195547] [2023-11-19 07:34:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:32,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:32,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924195547] [2023-11-19 07:34:32,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924195547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:32,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:32,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:34:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262054689] [2023-11-19 07:34:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:32,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:34:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:34:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:34:32,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 306 [2023-11-19 07:34:32,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:32,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:32,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 306 [2023-11-19 07:34:32,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:34,093 INFO L124 PetriNetUnfolderBase]: 7479/10245 cut-off events. [2023-11-19 07:34:34,094 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2023-11-19 07:34:34,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20553 conditions, 10245 events. 7479/10245 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 53353 event pairs, 7479 based on Foata normal form. 0/8832 useless extension candidates. Maximal degree in co-relation 20541. Up to 10091 conditions per place. [2023-11-19 07:34:34,183 INFO L140 encePairwiseOnDemand]: 298/306 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2023-11-19 07:34:34,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2023-11-19 07:34:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:34:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:34:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2023-11-19 07:34:34,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5049019607843137 [2023-11-19 07:34:34,210 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions. [2023-11-19 07:34:34,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions. [2023-11-19 07:34:34,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:34,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions. [2023-11-19 07:34:34,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:34,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:34,231 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:34,233 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 90 flow. Second operand 2 states and 309 transitions. [2023-11-19 07:34:34,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2023-11-19 07:34:34,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:34:34,242 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2023-11-19 07:34:34,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2023-11-19 07:34:34,247 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2023-11-19 07:34:34,247 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2023-11-19 07:34:34,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:34,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:34,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:34:34,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:34,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:34,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:34,249 INFO L85 PathProgramCache]: Analyzing trace with hash 659328, now seen corresponding path program 1 times [2023-11-19 07:34:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:34,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274742380] [2023-11-19 07:34:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:34,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274742380] [2023-11-19 07:34:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274742380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:34,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:34,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:34:34,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083658885] [2023-11-19 07:34:34,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:34,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:34,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:34,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 306 [2023-11-19 07:34:34,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:34,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:34,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 306 [2023-11-19 07:34:34,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:36,207 INFO L124 PetriNetUnfolderBase]: 5879/8521 cut-off events. [2023-11-19 07:34:36,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:36,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16662 conditions, 8521 events. 5879/8521 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 51182 event pairs, 1079 based on Foata normal form. 0/7863 useless extension candidates. Maximal degree in co-relation 16659. Up to 6367 conditions per place. [2023-11-19 07:34:36,280 INFO L140 encePairwiseOnDemand]: 303/306 looper letters, 43 selfloop transitions, 2 changer transitions 2/51 dead transitions. [2023-11-19 07:34:36,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 210 flow [2023-11-19 07:34:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:36,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2023-11-19 07:34:36,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49673202614379086 [2023-11-19 07:34:36,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2023-11-19 07:34:36,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2023-11-19 07:34:36,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:36,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2023-11-19 07:34:36,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:36,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:36,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:36,298 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 456 transitions. [2023-11-19 07:34:36,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 210 flow [2023-11-19 07:34:36,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:34:36,301 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 70 flow [2023-11-19 07:34:36,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2023-11-19 07:34:36,304 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2023-11-19 07:34:36,304 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 70 flow [2023-11-19 07:34:36,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:36,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:36,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:36,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:34:36,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:36,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash -892833168, now seen corresponding path program 1 times [2023-11-19 07:34:36,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009255769] [2023-11-19 07:34:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:36,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:36,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009255769] [2023-11-19 07:34:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009255769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:36,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:36,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:34:36,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296417182] [2023-11-19 07:34:36,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:36,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:36,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:36,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 306 [2023-11-19 07:34:36,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:36,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:36,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 306 [2023-11-19 07:34:36,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:40,177 INFO L124 PetriNetUnfolderBase]: 18849/25498 cut-off events. [2023-11-19 07:34:40,178 INFO L125 PetriNetUnfolderBase]: For 1295/1295 co-relation queries the response was YES. [2023-11-19 07:34:40,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52735 conditions, 25498 events. 18849/25498 cut-off events. For 1295/1295 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 135309 event pairs, 6992 based on Foata normal form. 0/24768 useless extension candidates. Maximal degree in co-relation 52731. Up to 16383 conditions per place. [2023-11-19 07:34:40,321 INFO L140 encePairwiseOnDemand]: 297/306 looper letters, 47 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2023-11-19 07:34:40,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 55 transitions, 240 flow [2023-11-19 07:34:40,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:40,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-11-19 07:34:40,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4760348583877996 [2023-11-19 07:34:40,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-11-19 07:34:40,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-11-19 07:34:40,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:40,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-11-19 07:34:40,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:40,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:40,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:40,333 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 70 flow. Second operand 3 states and 437 transitions. [2023-11-19 07:34:40,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 55 transitions, 240 flow [2023-11-19 07:34:40,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:34:40,336 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 128 flow [2023-11-19 07:34:40,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-11-19 07:34:40,338 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2023-11-19 07:34:40,338 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 128 flow [2023-11-19 07:34:40,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:40,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:40,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:40,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:34:40,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:40,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash -892833161, now seen corresponding path program 1 times [2023-11-19 07:34:40,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:40,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049174674] [2023-11-19 07:34:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:40,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:41,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:41,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049174674] [2023-11-19 07:34:41,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049174674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:41,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:41,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593159317] [2023-11-19 07:34:41,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:41,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:41,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:41,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:41,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 306 [2023-11-19 07:34:41,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:41,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:41,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 306 [2023-11-19 07:34:41,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:44,021 INFO L124 PetriNetUnfolderBase]: 13132/18409 cut-off events. [2023-11-19 07:34:44,021 INFO L125 PetriNetUnfolderBase]: For 4706/4839 co-relation queries the response was YES. [2023-11-19 07:34:44,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42724 conditions, 18409 events. 13132/18409 cut-off events. For 4706/4839 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 103331 event pairs, 1699 based on Foata normal form. 616/18850 useless extension candidates. Maximal degree in co-relation 42719. Up to 13175 conditions per place. [2023-11-19 07:34:44,139 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 53 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2023-11-19 07:34:44,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 304 flow [2023-11-19 07:34:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 771 transitions. [2023-11-19 07:34:44,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4199346405228758 [2023-11-19 07:34:44,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 771 transitions. [2023-11-19 07:34:44,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 771 transitions. [2023-11-19 07:34:44,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:44,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 771 transitions. [2023-11-19 07:34:44,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:44,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:44,153 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:44,153 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 128 flow. Second operand 6 states and 771 transitions. [2023-11-19 07:34:44,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 304 flow [2023-11-19 07:34:44,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:34:44,198 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 133 flow [2023-11-19 07:34:44,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=133, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-19 07:34:44,199 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2023-11-19 07:34:44,199 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 133 flow [2023-11-19 07:34:44,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:44,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:44,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:44,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:34:44,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:44,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash 979010700, now seen corresponding path program 1 times [2023-11-19 07:34:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:44,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981473689] [2023-11-19 07:34:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:44,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:44,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981473689] [2023-11-19 07:34:44,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981473689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:44,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:44,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:44,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478821616] [2023-11-19 07:34:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:44,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:44,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:44,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:44,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:45,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 306 [2023-11-19 07:34:45,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:45,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:45,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 306 [2023-11-19 07:34:45,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:46,876 INFO L124 PetriNetUnfolderBase]: 9385/13475 cut-off events. [2023-11-19 07:34:46,877 INFO L125 PetriNetUnfolderBase]: For 3235/3529 co-relation queries the response was YES. [2023-11-19 07:34:46,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30404 conditions, 13475 events. 9385/13475 cut-off events. For 3235/3529 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 77162 event pairs, 3462 based on Foata normal form. 335/13498 useless extension candidates. Maximal degree in co-relation 30398. Up to 12162 conditions per place. [2023-11-19 07:34:46,995 INFO L140 encePairwiseOnDemand]: 301/306 looper letters, 40 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2023-11-19 07:34:46,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 245 flow [2023-11-19 07:34:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-11-19 07:34:47,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4057734204793028 [2023-11-19 07:34:47,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-11-19 07:34:47,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-11-19 07:34:47,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:47,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-11-19 07:34:47,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:47,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:47,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:47,012 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 133 flow. Second operand 6 states and 745 transitions. [2023-11-19 07:34:47,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 245 flow [2023-11-19 07:34:47,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 233 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:34:47,020 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 117 flow [2023-11-19 07:34:47,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2023-11-19 07:34:47,023 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -6 predicate places. [2023-11-19 07:34:47,023 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 117 flow [2023-11-19 07:34:47,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:47,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:47,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:47,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:34:47,025 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:47,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:47,025 INFO L85 PathProgramCache]: Analyzing trace with hash 978868403, now seen corresponding path program 1 times [2023-11-19 07:34:47,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:47,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810796739] [2023-11-19 07:34:47,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:47,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:47,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:47,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810796739] [2023-11-19 07:34:47,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810796739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:47,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:47,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948841020] [2023-11-19 07:34:47,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:47,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:47,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:47,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:47,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 306 [2023-11-19 07:34:47,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:47,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:47,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 306 [2023-11-19 07:34:47,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:48,772 INFO L124 PetriNetUnfolderBase]: 8287/12304 cut-off events. [2023-11-19 07:34:48,772 INFO L125 PetriNetUnfolderBase]: For 1892/2306 co-relation queries the response was YES. [2023-11-19 07:34:48,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27364 conditions, 12304 events. 8287/12304 cut-off events. For 1892/2306 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 76236 event pairs, 1555 based on Foata normal form. 934/13026 useless extension candidates. Maximal degree in co-relation 27358. Up to 5222 conditions per place. [2023-11-19 07:34:48,838 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 57 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2023-11-19 07:34:48,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 346 flow [2023-11-19 07:34:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:34:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 579 transitions. [2023-11-19 07:34:48,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4730392156862745 [2023-11-19 07:34:48,842 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 579 transitions. [2023-11-19 07:34:48,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 579 transitions. [2023-11-19 07:34:48,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:48,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 579 transitions. [2023-11-19 07:34:48,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:48,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:48,849 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:48,849 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 117 flow. Second operand 4 states and 579 transitions. [2023-11-19 07:34:48,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 346 flow [2023-11-19 07:34:48,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 334 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:34:48,854 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 156 flow [2023-11-19 07:34:48,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:34:48,857 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2023-11-19 07:34:48,857 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 156 flow [2023-11-19 07:34:48,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:48,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:48,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:48,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:34:48,858 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:48,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -538320434, now seen corresponding path program 1 times [2023-11-19 07:34:48,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:48,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446662084] [2023-11-19 07:34:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:49,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:49,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446662084] [2023-11-19 07:34:49,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446662084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:49,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:49,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:49,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892314140] [2023-11-19 07:34:49,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:49,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:49,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:49,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:49,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 306 [2023-11-19 07:34:49,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:49,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:49,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 306 [2023-11-19 07:34:49,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:50,450 INFO L124 PetriNetUnfolderBase]: 6496/9964 cut-off events. [2023-11-19 07:34:50,450 INFO L125 PetriNetUnfolderBase]: For 4243/4518 co-relation queries the response was YES. [2023-11-19 07:34:50,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27354 conditions, 9964 events. 6496/9964 cut-off events. For 4243/4518 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 63119 event pairs, 1455 based on Foata normal form. 625/10368 useless extension candidates. Maximal degree in co-relation 27346. Up to 3749 conditions per place. [2023-11-19 07:34:50,508 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 73 selfloop transitions, 10 changer transitions 0/91 dead transitions. [2023-11-19 07:34:50,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 483 flow [2023-11-19 07:34:50,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:34:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions. [2023-11-19 07:34:50,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47516339869281043 [2023-11-19 07:34:50,513 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions. [2023-11-19 07:34:50,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions. [2023-11-19 07:34:50,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:50,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions. [2023-11-19 07:34:50,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:50,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:50,521 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:50,521 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 156 flow. Second operand 5 states and 727 transitions. [2023-11-19 07:34:50,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 483 flow [2023-11-19 07:34:50,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 91 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:50,528 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 221 flow [2023-11-19 07:34:50,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2023-11-19 07:34:50,529 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2023-11-19 07:34:50,529 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 221 flow [2023-11-19 07:34:50,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:50,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:50,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:50,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:34:50,532 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:50,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:50,533 INFO L85 PathProgramCache]: Analyzing trace with hash 131607712, now seen corresponding path program 1 times [2023-11-19 07:34:50,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:50,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145778429] [2023-11-19 07:34:50,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:51,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:51,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145778429] [2023-11-19 07:34:51,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145778429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:51,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:51,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:51,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928460982] [2023-11-19 07:34:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:51,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:51,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:51,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 306 [2023-11-19 07:34:51,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:51,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:51,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 306 [2023-11-19 07:34:51,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:53,176 INFO L124 PetriNetUnfolderBase]: 10943/17063 cut-off events. [2023-11-19 07:34:53,176 INFO L125 PetriNetUnfolderBase]: For 25131/25476 co-relation queries the response was YES. [2023-11-19 07:34:53,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54261 conditions, 17063 events. 10943/17063 cut-off events. For 25131/25476 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 121015 event pairs, 3178 based on Foata normal form. 95/16950 useless extension candidates. Maximal degree in co-relation 54251. Up to 9467 conditions per place. [2023-11-19 07:34:53,283 INFO L140 encePairwiseOnDemand]: 298/306 looper letters, 87 selfloop transitions, 14 changer transitions 36/145 dead transitions. [2023-11-19 07:34:53,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 145 transitions, 1051 flow [2023-11-19 07:34:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:53,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 879 transitions. [2023-11-19 07:34:53,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47875816993464054 [2023-11-19 07:34:53,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 879 transitions. [2023-11-19 07:34:53,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 879 transitions. [2023-11-19 07:34:53,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:53,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 879 transitions. [2023-11-19 07:34:53,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:53,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:53,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:53,298 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 221 flow. Second operand 6 states and 879 transitions. [2023-11-19 07:34:53,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 145 transitions, 1051 flow [2023-11-19 07:34:53,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 145 transitions, 990 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-11-19 07:34:53,326 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 319 flow [2023-11-19 07:34:53,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2023-11-19 07:34:53,327 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2023-11-19 07:34:53,327 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 319 flow [2023-11-19 07:34:53,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:53,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:53,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:53,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:34:53,328 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:53,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash 350941066, now seen corresponding path program 2 times [2023-11-19 07:34:53,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:53,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290544537] [2023-11-19 07:34:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:53,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:53,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:53,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290544537] [2023-11-19 07:34:53,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290544537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:53,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:53,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:34:53,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35437598] [2023-11-19 07:34:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:34:53,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:53,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:34:53,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:34:53,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 306 [2023-11-19 07:34:53,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:53,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:53,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 306 [2023-11-19 07:34:53,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:55,454 INFO L124 PetriNetUnfolderBase]: 9280/14433 cut-off events. [2023-11-19 07:34:55,454 INFO L125 PetriNetUnfolderBase]: For 23175/23881 co-relation queries the response was YES. [2023-11-19 07:34:55,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51508 conditions, 14433 events. 9280/14433 cut-off events. For 23175/23881 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 100791 event pairs, 1524 based on Foata normal form. 390/14503 useless extension candidates. Maximal degree in co-relation 51494. Up to 5866 conditions per place. [2023-11-19 07:34:55,539 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 124 selfloop transitions, 14 changer transitions 10/156 dead transitions. [2023-11-19 07:34:55,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 156 transitions, 1097 flow [2023-11-19 07:34:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:34:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:34:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2023-11-19 07:34:55,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47549019607843135 [2023-11-19 07:34:55,544 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2023-11-19 07:34:55,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2023-11-19 07:34:55,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:55,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2023-11-19 07:34:55,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:55,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:55,552 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:55,552 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 319 flow. Second operand 6 states and 873 transitions. [2023-11-19 07:34:55,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 156 transitions, 1097 flow [2023-11-19 07:34:55,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 156 transitions, 1088 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:55,619 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 394 flow [2023-11-19 07:34:55,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2023-11-19 07:34:55,620 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 13 predicate places. [2023-11-19 07:34:55,620 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 394 flow [2023-11-19 07:34:55,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:55,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:55,621 INFO L208 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, 1] [2023-11-19 07:34:55,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:34:55,621 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:34:55,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash -237633172, now seen corresponding path program 1 times [2023-11-19 07:34:55,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:55,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185887092] [2023-11-19 07:34:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:55,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:55,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:55,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185887092] [2023-11-19 07:34:55,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185887092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:55,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:55,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105457595] [2023-11-19 07:34:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:55,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:55,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:55,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 306 [2023-11-19 07:34:55,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 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) [2023-11-19 07:34:55,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:55,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 306 [2023-11-19 07:34:55,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:58,786 INFO L124 PetriNetUnfolderBase]: 12480/19295 cut-off events. [2023-11-19 07:34:58,786 INFO L125 PetriNetUnfolderBase]: For 49749/50586 co-relation queries the response was YES. [2023-11-19 07:34:58,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74916 conditions, 19295 events. 12480/19295 cut-off events. For 49749/50586 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 136515 event pairs, 3211 based on Foata normal form. 104/19083 useless extension candidates. Maximal degree in co-relation 74900. Up to 10390 conditions per place. [2023-11-19 07:34:58,899 INFO L140 encePairwiseOnDemand]: 303/306 looper letters, 78 selfloop transitions, 4 changer transitions 15/102 dead transitions. [2023-11-19 07:34:58,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 102 transitions, 899 flow [2023-11-19 07:34:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-11-19 07:34:58,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48366013071895425 [2023-11-19 07:34:58,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-11-19 07:34:58,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-11-19 07:34:58,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:58,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-11-19 07:34:58,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:58,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:58,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:58,909 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 394 flow. Second operand 3 states and 444 transitions. [2023-11-19 07:34:58,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 102 transitions, 899 flow [2023-11-19 07:35:00,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 102 transitions, 839 flow, removed 16 selfloop flow, removed 3 redundant places. [2023-11-19 07:35:00,254 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 369 flow [2023-11-19 07:35:00,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2023-11-19 07:35:00,255 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 11 predicate places. [2023-11-19 07:35:00,256 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 369 flow [2023-11-19 07:35:00,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 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) [2023-11-19 07:35:00,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:00,256 INFO L208 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] [2023-11-19 07:35:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:35:00,256 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:35:00,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1781731712, now seen corresponding path program 1 times [2023-11-19 07:35:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958881484] [2023-11-19 07:35:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958881484] [2023-11-19 07:35:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958881484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:35:01,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910762147] [2023-11-19 07:35:01,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:35:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:35:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:35:01,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 306 [2023-11-19 07:35:01,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:01,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 306 [2023-11-19 07:35:01,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:04,654 INFO L124 PetriNetUnfolderBase]: 13149/21207 cut-off events. [2023-11-19 07:35:04,655 INFO L125 PetriNetUnfolderBase]: For 41975/43169 co-relation queries the response was YES. [2023-11-19 07:35:04,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81093 conditions, 21207 events. 13149/21207 cut-off events. For 41975/43169 co-relation queries the response was YES. Maximal size of possible extension queue 1164. Compared 163632 event pairs, 2506 based on Foata normal form. 543/21578 useless extension candidates. Maximal degree in co-relation 81076. Up to 8029 conditions per place. [2023-11-19 07:35:04,792 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 108 selfloop transitions, 12 changer transitions 49/176 dead transitions. [2023-11-19 07:35:04,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 176 transitions, 1471 flow [2023-11-19 07:35:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:35:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:35:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1000 transitions. [2023-11-19 07:35:04,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4668534080298786 [2023-11-19 07:35:04,802 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1000 transitions. [2023-11-19 07:35:04,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1000 transitions. [2023-11-19 07:35:04,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:04,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1000 transitions. [2023-11-19 07:35:04,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 142.85714285714286) internal successors, (1000), 7 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,813 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,813 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 369 flow. Second operand 7 states and 1000 transitions. [2023-11-19 07:35:04,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 176 transitions, 1471 flow [2023-11-19 07:35:06,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 176 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:06,703 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 451 flow [2023-11-19 07:35:06,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=451, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2023-11-19 07:35:06,704 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2023-11-19 07:35:06,704 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 451 flow [2023-11-19 07:35:06,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:06,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:06,706 INFO L208 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] [2023-11-19 07:35:06,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:35:06,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-19 07:35:06,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:06,707 INFO L85 PathProgramCache]: Analyzing trace with hash -657429247, now seen corresponding path program 1 times [2023-11-19 07:35:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:06,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028146103] [2023-11-19 07:35:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:08,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:08,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028146103] [2023-11-19 07:35:08,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028146103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:08,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:08,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:35:08,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145124579] [2023-11-19 07:35:08,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:08,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:08,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:08,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:08,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:08,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 306 [2023-11-19 07:35:08,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 451 flow. Second operand has 9 states, 9 states have (on average 133.33333333333334) internal successors, (1200), 9 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:08,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 306 [2023-11-19 07:35:08,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:12,375 INFO L124 PetriNetUnfolderBase]: 15619/25304 cut-off events. [2023-11-19 07:35:12,375 INFO L125 PetriNetUnfolderBase]: For 65024/66664 co-relation queries the response was YES. [2023-11-19 07:35:12,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103939 conditions, 25304 events. 15619/25304 cut-off events. For 65024/66664 co-relation queries the response was YES. Maximal size of possible extension queue 1486. Compared 201507 event pairs, 2359 based on Foata normal form. 880/25997 useless extension candidates. Maximal degree in co-relation 103920. Up to 11014 conditions per place. [2023-11-19 07:35:12,524 INFO L140 encePairwiseOnDemand]: 298/306 looper letters, 144 selfloop transitions, 9 changer transitions 22/182 dead transitions. [2023-11-19 07:35:12,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 182 transitions, 1573 flow [2023-11-19 07:35:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:35:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-11-19 07:35:12,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47766884531590414 [2023-11-19 07:35:12,529 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-11-19 07:35:12,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-11-19 07:35:12,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:12,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-11-19 07:35:12,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:12,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:12,537 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:12,538 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 451 flow. Second operand 6 states and 877 transitions. [2023-11-19 07:35:12,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 182 transitions, 1573 flow