./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:28,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:28,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:22:28,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:28,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:28,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:28,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:28,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:28,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:28,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:28,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:28,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:28,828 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:28,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:28,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:28,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:28,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:28,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:28,832 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:22:28,833 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:22:28,833 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:22:28,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:28,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:22:28,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:28,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:28,836 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:28,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:28,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:28,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:28,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:28,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:28,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:28,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:28,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:28,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:28,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:28,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:28,842 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:28,842 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_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2023-11-06 22:22:29,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:29,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:29,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:29,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:29,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:29,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-06 22:22:32,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:32,743 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:32,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-06 22:22:32,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/data/d346af402/a6e94d5c32fa4ed5b36aa172ec9f40f5/FLAG8062fde94 [2023-11-06 22:22:32,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/data/d346af402/a6e94d5c32fa4ed5b36aa172ec9f40f5 [2023-11-06 22:22:32,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:32,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:32,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:32,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:32,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:32,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bfc122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:32, skipping insertion in model container [2023-11-06 22:22:32,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:32" (1/1) ... [2023-11-06 22:22:32,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:33,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:33,334 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:33,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:33,492 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:33,492 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:33,500 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:33,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33 WrapperNode [2023-11-06 22:22:33,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:33,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:33,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:33,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:33,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,605 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-06 22:22:33,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:33,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:33,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:33,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:33,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:33,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:33,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:33,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:33,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (1/1) ... [2023-11-06 22:22:33,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:33,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:33,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:33,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_532a76c6-78ca-4422-a8f7-f174ffded86a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:22:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:22:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:22:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:22:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:22:33,760 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:22:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:22:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:22:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:22:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:22:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:33,763 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:22:33,946 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:33,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:34,378 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:34,576 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:34,577 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:22:34,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:34 BoogieIcfgContainer [2023-11-06 22:22:34,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:34,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:34,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:34,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:34,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:32" (1/3) ... [2023-11-06 22:22:34,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e39f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:34, skipping insertion in model container [2023-11-06 22:22:34,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:33" (2/3) ... [2023-11-06 22:22:34,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e39f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:34, skipping insertion in model container [2023-11-06 22:22:34,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:34" (3/3) ... [2023-11-06 22:22:34,594 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-06 22:22:34,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:34,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-06 22:22:34,615 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:22:34,716 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:22:34,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 152 transitions, 320 flow [2023-11-06 22:22:34,878 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2023-11-06 22:22:34,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:34,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 3/148 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. 0/134 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-06 22:22:34,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 152 transitions, 320 flow [2023-11-06 22:22:34,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 148 transitions, 308 flow [2023-11-06 22:22:34,929 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:22:34,950 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 148 transitions, 308 flow [2023-11-06 22:22:34,953 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 148 transitions, 308 flow [2023-11-06 22:22:34,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 148 transitions, 308 flow [2023-11-06 22:22:35,003 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2023-11-06 22:22:35,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:35,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 3/148 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. 0/134 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-06 22:22:35,012 INFO L119 LiptonReduction]: Number of co-enabled transitions 4232 [2023-11-06 22:22:40,963 INFO L134 LiptonReduction]: Checked pairs total: 11563 [2023-11-06 22:22:40,963 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-11-06 22:22:40,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:41,004 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;@2aa646f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:41,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-06 22:22:41,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:22:41,007 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:22:41,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:41,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:41,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:22:41,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:41,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:41,017 INFO L85 PathProgramCache]: Analyzing trace with hash 658, now seen corresponding path program 1 times [2023-11-06 22:22:41,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:41,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470719279] [2023-11-06 22:22:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:41,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:41,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:41,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470719279] [2023-11-06 22:22:41,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470719279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:41,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:41,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:22:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188480042] [2023-11-06 22:22:41,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:41,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:22:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:41,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:22:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:22:41,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 299 [2023-11-06 22:22:41,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:41,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:41,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 299 [2023-11-06 22:22:41,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:43,482 INFO L124 PetriNetUnfolderBase]: 8719/11853 cut-off events. [2023-11-06 22:22:43,482 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-11-06 22:22:43,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23801 conditions, 11853 events. 8719/11853 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 63577 event pairs, 8719 based on Foata normal form. 0/10315 useless extension candidates. Maximal degree in co-relation 23789. Up to 11731 conditions per place. [2023-11-06 22:22:43,595 INFO L140 encePairwiseOnDemand]: 290/299 looper letters, 28 selfloop transitions, 0 changer transitions 0/33 dead transitions. [2023-11-06 22:22:43,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 33 transitions, 134 flow [2023-11-06 22:22:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:22:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:22:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2023-11-06 22:22:43,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5167224080267558 [2023-11-06 22:22:43,617 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions. [2023-11-06 22:22:43,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions. [2023-11-06 22:22:43,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:43,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions. [2023-11-06 22:22:43,631 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) [2023-11-06 22:22:43,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,637 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,640 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 2 states and 309 transitions. [2023-11-06 22:22:43,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 33 transitions, 134 flow [2023-11-06 22:22:43,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:22:43,651 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2023-11-06 22:22:43,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2023-11-06 22:22:43,658 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2023-11-06 22:22:43,659 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2023-11-06 22:22:43,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:43,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:43,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:22:43,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:22:43,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:43,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash 646705, now seen corresponding path program 1 times [2023-11-06 22:22:43,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938260175] [2023-11-06 22:22:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:44,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938260175] [2023-11-06 22:22:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938260175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:44,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:44,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:22:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679290574] [2023-11-06 22:22:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:44,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:22:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:44,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:22:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:44,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 299 [2023-11-06 22:22:44,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:44,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:44,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 299 [2023-11-06 22:22:44,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:45,808 INFO L124 PetriNetUnfolderBase]: 6855/9891 cut-off events. [2023-11-06 22:22:45,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:22:45,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19328 conditions, 9891 events. 6855/9891 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 62018 event pairs, 1263 based on Foata normal form. 0/9223 useless extension candidates. Maximal degree in co-relation 19325. Up to 7399 conditions per place. [2023-11-06 22:22:45,902 INFO L140 encePairwiseOnDemand]: 296/299 looper letters, 45 selfloop transitions, 2 changer transitions 2/54 dead transitions. [2023-11-06 22:22:45,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 220 flow [2023-11-06 22:22:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:22:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:22:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-11-06 22:22:45,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2023-11-06 22:22:45,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-11-06 22:22:45,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-11-06 22:22:45,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:45,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-11-06 22:22:45,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 299.0) internal successors, (1196), 4 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,915 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 3 states and 455 transitions. [2023-11-06 22:22:45,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 220 flow [2023-11-06 22:22:45,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:22:45,917 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 74 flow [2023-11-06 22:22:45,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2023-11-06 22:22:45,919 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -10 predicate places. [2023-11-06 22:22:45,919 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 74 flow [2023-11-06 22:22:45,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:45,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:45,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:22:45,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:45,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2025480697, now seen corresponding path program 1 times [2023-11-06 22:22:45,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:45,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007947756] [2023-11-06 22:22:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:46,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007947756] [2023-11-06 22:22:46,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007947756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:46,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:22:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546261314] [2023-11-06 22:22:46,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:46,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:22:46,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:46,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:22:46,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:22:47,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 299 [2023-11-06 22:22:47,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:47,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:47,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 299 [2023-11-06 22:22:47,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:48,410 INFO L124 PetriNetUnfolderBase]: 4903/6789 cut-off events. [2023-11-06 22:22:48,411 INFO L125 PetriNetUnfolderBase]: For 441/441 co-relation queries the response was YES. [2023-11-06 22:22:48,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14078 conditions, 6789 events. 4903/6789 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 35053 event pairs, 1832 based on Foata normal form. 0/6738 useless extension candidates. Maximal degree in co-relation 14074. Up to 6432 conditions per place. [2023-11-06 22:22:48,462 INFO L140 encePairwiseOnDemand]: 294/299 looper letters, 39 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2023-11-06 22:22:48,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 200 flow [2023-11-06 22:22:48,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:48,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:22:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 740 transitions. [2023-11-06 22:22:48,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4124860646599777 [2023-11-06 22:22:48,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 740 transitions. [2023-11-06 22:22:48,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 740 transitions. [2023-11-06 22:22:48,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:48,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 740 transitions. [2023-11-06 22:22:48,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.33333333333333) internal successors, (740), 6 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 299.0) internal successors, (2093), 7 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,476 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 299.0) internal successors, (2093), 7 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,476 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 74 flow. Second operand 6 states and 740 transitions. [2023-11-06 22:22:48,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 200 flow [2023-11-06 22:22:48,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:22:48,479 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 76 flow [2023-11-06 22:22:48,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2023-11-06 22:22:48,480 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2023-11-06 22:22:48,480 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 76 flow [2023-11-06 22:22:48,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:48,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:48,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:22:48,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:48,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2025480662, now seen corresponding path program 1 times [2023-11-06 22:22:48,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297411793] [2023-11-06 22:22:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:48,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:48,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:48,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297411793] [2023-11-06 22:22:48,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297411793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:48,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:48,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:22:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797317135] [2023-11-06 22:22:48,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:48,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:48,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:48,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-06 22:22:48,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:48,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:48,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-06 22:22:48,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:53,069 INFO L124 PetriNetUnfolderBase]: 29612/39983 cut-off events. [2023-11-06 22:22:53,069 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2023-11-06 22:22:53,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80888 conditions, 39983 events. 29612/39983 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 223070 event pairs, 9027 based on Foata normal form. 1635/41618 useless extension candidates. Maximal degree in co-relation 80884. Up to 20747 conditions per place. [2023-11-06 22:22:53,274 INFO L140 encePairwiseOnDemand]: 288/299 looper letters, 46 selfloop transitions, 9 changer transitions 37/92 dead transitions. [2023-11-06 22:22:53,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 92 transitions, 392 flow [2023-11-06 22:22:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:22:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:22:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 699 transitions. [2023-11-06 22:22:53,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46755852842809364 [2023-11-06 22:22:53,278 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 699 transitions. [2023-11-06 22:22:53,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 699 transitions. [2023-11-06 22:22:53,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:53,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 699 transitions. [2023-11-06 22:22:53,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:53,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:53,286 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:53,286 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 76 flow. Second operand 5 states and 699 transitions. [2023-11-06 22:22:53,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 92 transitions, 392 flow [2023-11-06 22:22:53,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 92 transitions, 382 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:22:53,291 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 159 flow [2023-11-06 22:22:53,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-11-06 22:22:53,293 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2023-11-06 22:22:53,293 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 159 flow [2023-11-06 22:22:53,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:53,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:53,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:53,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:22:53,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:53,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1634623792, now seen corresponding path program 1 times [2023-11-06 22:22:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:53,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977141050] [2023-11-06 22:22:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:53,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:53,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977141050] [2023-11-06 22:22:53,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977141050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:53,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:53,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:53,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795916803] [2023-11-06 22:22:53,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:53,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:53,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:53,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-06 22:22:53,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 123.6) internal successors, (618), 5 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:53,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:53,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-06 22:22:53,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:22:58,134 INFO L124 PetriNetUnfolderBase]: 27540/37421 cut-off events. [2023-11-06 22:22:58,135 INFO L125 PetriNetUnfolderBase]: For 28690/28690 co-relation queries the response was YES. [2023-11-06 22:22:58,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104635 conditions, 37421 events. 27540/37421 cut-off events. For 28690/28690 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 208728 event pairs, 2268 based on Foata normal form. 1365/38786 useless extension candidates. Maximal degree in co-relation 104628. Up to 19262 conditions per place. [2023-11-06 22:22:58,385 INFO L140 encePairwiseOnDemand]: 288/299 looper letters, 61 selfloop transitions, 13 changer transitions 50/124 dead transitions. [2023-11-06 22:22:58,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 124 transitions, 727 flow [2023-11-06 22:22:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:22:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:22:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 965 transitions. [2023-11-06 22:22:58,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4610606784519828 [2023-11-06 22:22:58,392 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 965 transitions. [2023-11-06 22:22:58,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 965 transitions. [2023-11-06 22:22:58,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:58,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 965 transitions. [2023-11-06 22:22:58,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:58,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:58,403 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:58,403 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 159 flow. Second operand 7 states and 965 transitions. [2023-11-06 22:22:58,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 124 transitions, 727 flow [2023-11-06 22:22:58,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 124 transitions, 673 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:22:58,630 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 259 flow [2023-11-06 22:22:58,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=259, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2023-11-06 22:22:58,633 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2023-11-06 22:22:58,633 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 259 flow [2023-11-06 22:22:58,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.6) internal successors, (618), 5 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:58,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:22:58,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:58,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:22:58,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:22:58,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1634625714, now seen corresponding path program 1 times [2023-11-06 22:22:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429988572] [2023-11-06 22:22:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:58,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:58,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429988572] [2023-11-06 22:22:58,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429988572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593353624] [2023-11-06 22:22:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:58,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:22:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:58,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-06 22:22:58,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 123.6) internal successors, (618), 5 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:58,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:22:58,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-06 22:22:58,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:03,648 INFO L124 PetriNetUnfolderBase]: 25541/34765 cut-off events. [2023-11-06 22:23:03,648 INFO L125 PetriNetUnfolderBase]: For 74886/74886 co-relation queries the response was YES. [2023-11-06 22:23:03,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108121 conditions, 34765 events. 25541/34765 cut-off events. For 74886/74886 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 190471 event pairs, 5257 based on Foata normal form. 1500/36265 useless extension candidates. Maximal degree in co-relation 108109. Up to 13469 conditions per place. [2023-11-06 22:23:03,905 INFO L140 encePairwiseOnDemand]: 289/299 looper letters, 70 selfloop transitions, 9 changer transitions 55/134 dead transitions. [2023-11-06 22:23:03,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 134 transitions, 913 flow [2023-11-06 22:23:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:23:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 962 transitions. [2023-11-06 22:23:03,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45962732919254656 [2023-11-06 22:23:03,915 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 962 transitions. [2023-11-06 22:23:03,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 962 transitions. [2023-11-06 22:23:03,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:03,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 962 transitions. [2023-11-06 22:23:03,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.42857142857142) internal successors, (962), 7 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:03,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:03,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:03,925 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 259 flow. Second operand 7 states and 962 transitions. [2023-11-06 22:23:03,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 134 transitions, 913 flow [2023-11-06 22:23:04,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 134 transitions, 901 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-06 22:23:04,852 INFO L231 Difference]: Finished difference. Result has 66 places, 51 transitions, 357 flow [2023-11-06 22:23:04,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=357, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2023-11-06 22:23:04,854 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2023-11-06 22:23:04,854 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 357 flow [2023-11-06 22:23:04,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.6) internal successors, (618), 5 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:04,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:04,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:04,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:23:04,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:04,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 263748488, now seen corresponding path program 1 times [2023-11-06 22:23:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600761333] [2023-11-06 22:23:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:04,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:05,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:05,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600761333] [2023-11-06 22:23:05,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600761333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:05,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515865717] [2023-11-06 22:23:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:05,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:05,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:05,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 299 [2023-11-06 22:23:05,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:05,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:05,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 299 [2023-11-06 22:23:05,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:09,847 INFO L124 PetriNetUnfolderBase]: 23827/32464 cut-off events. [2023-11-06 22:23:09,847 INFO L125 PetriNetUnfolderBase]: For 107461/107461 co-relation queries the response was YES. [2023-11-06 22:23:09,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111240 conditions, 32464 events. 23827/32464 cut-off events. For 107461/107461 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 179344 event pairs, 4494 based on Foata normal form. 1089/33553 useless extension candidates. Maximal degree in co-relation 111222. Up to 16986 conditions per place. [2023-11-06 22:23:10,134 INFO L140 encePairwiseOnDemand]: 288/299 looper letters, 71 selfloop transitions, 27 changer transitions 46/144 dead transitions. [2023-11-06 22:23:10,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 144 transitions, 1125 flow [2023-11-06 22:23:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:23:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 968 transitions. [2023-11-06 22:23:10,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.462494027711419 [2023-11-06 22:23:10,141 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 968 transitions. [2023-11-06 22:23:10,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 968 transitions. [2023-11-06 22:23:10,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:10,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 968 transitions. [2023-11-06 22:23:10,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.28571428571428) internal successors, (968), 7 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:10,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:10,152 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:10,153 INFO L175 Difference]: Start difference. First operand has 66 places, 51 transitions, 357 flow. Second operand 7 states and 968 transitions. [2023-11-06 22:23:10,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 144 transitions, 1125 flow [2023-11-06 22:23:11,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 1094 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-11-06 22:23:11,567 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 607 flow [2023-11-06 22:23:11,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=607, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2023-11-06 22:23:11,568 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2023-11-06 22:23:11,569 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 607 flow [2023-11-06 22:23:11,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:11,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:11,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:11,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:23:11,570 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:11,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:11,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1083957638, now seen corresponding path program 1 times [2023-11-06 22:23:11,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327750453] [2023-11-06 22:23:11,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:11,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:11,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:11,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327750453] [2023-11-06 22:23:11,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327750453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:11,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:11,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:11,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814359881] [2023-11-06 22:23:11,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:11,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:11,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:11,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 299 [2023-11-06 22:23:11,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:11,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:11,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 299 [2023-11-06 22:23:11,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:15,192 INFO L124 PetriNetUnfolderBase]: 16102/23339 cut-off events. [2023-11-06 22:23:15,193 INFO L125 PetriNetUnfolderBase]: For 95122/96929 co-relation queries the response was YES. [2023-11-06 22:23:15,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81012 conditions, 23339 events. 16102/23339 cut-off events. For 95122/96929 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 147255 event pairs, 4311 based on Foata normal form. 1439/24174 useless extension candidates. Maximal degree in co-relation 80992. Up to 13840 conditions per place. [2023-11-06 22:23:15,628 INFO L140 encePairwiseOnDemand]: 295/299 looper letters, 58 selfloop transitions, 5 changer transitions 27/111 dead transitions. [2023-11-06 22:23:15,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 111 transitions, 1022 flow [2023-11-06 22:23:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:23:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions. [2023-11-06 22:23:15,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4862876254180602 [2023-11-06 22:23:15,631 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions. [2023-11-06 22:23:15,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions. [2023-11-06 22:23:15,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:15,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions. [2023-11-06 22:23:15,634 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) [2023-11-06 22:23:15,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:15,638 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:15,638 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 607 flow. Second operand 5 states and 727 transitions. [2023-11-06 22:23:15,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 111 transitions, 1022 flow [2023-11-06 22:23:16,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 111 transitions, 998 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-11-06 22:23:16,137 INFO L231 Difference]: Finished difference. Result has 72 places, 64 transitions, 606 flow [2023-11-06 22:23:16,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=606, PETRI_PLACES=72, PETRI_TRANSITIONS=64} [2023-11-06 22:23:16,138 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2023-11-06 22:23:16,138 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 64 transitions, 606 flow [2023-11-06 22:23:16,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:16,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:16,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:16,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:23:16,139 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:16,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1842579351, now seen corresponding path program 1 times [2023-11-06 22:23:16,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:16,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167878994] [2023-11-06 22:23:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:16,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167878994] [2023-11-06 22:23:16,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167878994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:16,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:16,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:16,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046974772] [2023-11-06 22:23:16,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:16,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:16,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:16,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 299 [2023-11-06 22:23:16,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 606 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:16,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:16,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 299 [2023-11-06 22:23:16,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:18,928 INFO L124 PetriNetUnfolderBase]: 11344/16884 cut-off events. [2023-11-06 22:23:18,929 INFO L125 PetriNetUnfolderBase]: For 52558/57402 co-relation queries the response was YES. [2023-11-06 22:23:19,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54279 conditions, 16884 events. 11344/16884 cut-off events. For 52558/57402 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 109387 event pairs, 2081 based on Foata normal form. 1713/18120 useless extension candidates. Maximal degree in co-relation 54257. Up to 10320 conditions per place. [2023-11-06 22:23:19,087 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 113 selfloop transitions, 10 changer transitions 0/148 dead transitions. [2023-11-06 22:23:19,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 148 transitions, 1487 flow [2023-11-06 22:23:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:23:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2023-11-06 22:23:19,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4802675585284281 [2023-11-06 22:23:19,092 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2023-11-06 22:23:19,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2023-11-06 22:23:19,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:19,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2023-11-06 22:23:19,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:19,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:19,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:19,101 INFO L175 Difference]: Start difference. First operand has 72 places, 64 transitions, 606 flow. Second operand 5 states and 718 transitions. [2023-11-06 22:23:19,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 148 transitions, 1487 flow [2023-11-06 22:23:19,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 148 transitions, 1459 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-11-06 22:23:19,182 INFO L231 Difference]: Finished difference. Result has 70 places, 73 transitions, 659 flow [2023-11-06 22:23:19,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=659, PETRI_PLACES=70, PETRI_TRANSITIONS=73} [2023-11-06 22:23:19,183 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2023-11-06 22:23:19,184 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 73 transitions, 659 flow [2023-11-06 22:23:19,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:19,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:19,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:19,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:23:19,185 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:19,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 661424714, now seen corresponding path program 1 times [2023-11-06 22:23:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291988640] [2023-11-06 22:23:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:19,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291988640] [2023-11-06 22:23:19,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291988640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:19,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:19,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:19,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049968210] [2023-11-06 22:23:19,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:19,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:19,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:19,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:19,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:19,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 299 [2023-11-06 22:23:19,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 73 transitions, 659 flow. Second operand has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:19,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:19,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 299 [2023-11-06 22:23:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:21,845 INFO L124 PetriNetUnfolderBase]: 8609/13228 cut-off events. [2023-11-06 22:23:21,845 INFO L125 PetriNetUnfolderBase]: For 42131/46013 co-relation queries the response was YES. [2023-11-06 22:23:21,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49730 conditions, 13228 events. 8609/13228 cut-off events. For 42131/46013 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 88385 event pairs, 1025 based on Foata normal form. 1174/13994 useless extension candidates. Maximal degree in co-relation 49710. Up to 3869 conditions per place. [2023-11-06 22:23:21,947 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 151 selfloop transitions, 19 changer transitions 0/195 dead transitions. [2023-11-06 22:23:21,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 195 transitions, 1971 flow [2023-11-06 22:23:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:23:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1007 transitions. [2023-11-06 22:23:21,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4811275680840898 [2023-11-06 22:23:21,952 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1007 transitions. [2023-11-06 22:23:21,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1007 transitions. [2023-11-06 22:23:21,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:21,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1007 transitions. [2023-11-06 22:23:21,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.85714285714286) internal successors, (1007), 7 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:21,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:21,962 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:21,962 INFO L175 Difference]: Start difference. First operand has 70 places, 73 transitions, 659 flow. Second operand 7 states and 1007 transitions. [2023-11-06 22:23:21,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 195 transitions, 1971 flow [2023-11-06 22:23:22,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 195 transitions, 1966 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:23:22,116 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 788 flow [2023-11-06 22:23:22,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=788, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2023-11-06 22:23:22,117 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 24 predicate places. [2023-11-06 22:23:22,118 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 788 flow [2023-11-06 22:23:22,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:22,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:22,118 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] [2023-11-06 22:23:22,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:23:22,119 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:22,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:22,119 INFO L85 PathProgramCache]: Analyzing trace with hash 222494177, now seen corresponding path program 1 times [2023-11-06 22:23:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162509131] [2023-11-06 22:23:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:22,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:22,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:22,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162509131] [2023-11-06 22:23:22,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162509131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:22,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:22,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:23:22,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556920964] [2023-11-06 22:23:22,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:22,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:22,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:22,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:22,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:22,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 299 [2023-11-06 22:23:22,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:22,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:22,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 299 [2023-11-06 22:23:22,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:24,857 INFO L124 PetriNetUnfolderBase]: 7966/12221 cut-off events. [2023-11-06 22:23:24,857 INFO L125 PetriNetUnfolderBase]: For 48931/52616 co-relation queries the response was YES. [2023-11-06 22:23:24,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51923 conditions, 12221 events. 7966/12221 cut-off events. For 48931/52616 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 81144 event pairs, 893 based on Foata normal form. 620/12442 useless extension candidates. Maximal degree in co-relation 51900. Up to 3640 conditions per place. [2023-11-06 22:23:24,974 INFO L140 encePairwiseOnDemand]: 292/299 looper letters, 165 selfloop transitions, 28 changer transitions 12/230 dead transitions. [2023-11-06 22:23:24,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 230 transitions, 2383 flow [2023-11-06 22:23:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:23:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:23:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1294 transitions. [2023-11-06 22:23:24,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808621330360461 [2023-11-06 22:23:24,980 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1294 transitions. [2023-11-06 22:23:24,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1294 transitions. [2023-11-06 22:23:24,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:24,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1294 transitions. [2023-11-06 22:23:24,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.77777777777777) internal successors, (1294), 9 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:24,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 299.0) internal successors, (2990), 10 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:24,994 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 299.0) internal successors, (2990), 10 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:24,994 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 788 flow. Second operand 9 states and 1294 transitions. [2023-11-06 22:23:24,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 230 transitions, 2383 flow [2023-11-06 22:23:26,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 230 transitions, 2331 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-11-06 22:23:26,221 INFO L231 Difference]: Finished difference. Result has 86 places, 91 transitions, 914 flow [2023-11-06 22:23:26,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=86, PETRI_TRANSITIONS=91} [2023-11-06 22:23:26,222 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 32 predicate places. [2023-11-06 22:23:26,222 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 91 transitions, 914 flow [2023-11-06 22:23:26,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:26,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:23:26,223 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, 1] [2023-11-06 22:23:26,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:23:26,223 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:23:26,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -437552924, now seen corresponding path program 1 times [2023-11-06 22:23:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:26,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784097063] [2023-11-06 22:23:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:26,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:27,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784097063] [2023-11-06 22:23:27,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784097063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:27,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:27,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:23:27,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57470942] [2023-11-06 22:23:27,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:27,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:27,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:27,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 299 [2023-11-06 22:23:27,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 91 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:27,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:23:27,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 299 [2023-11-06 22:23:27,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:23:30,737 INFO L124 PetriNetUnfolderBase]: 13705/21655 cut-off events. [2023-11-06 22:23:30,738 INFO L125 PetriNetUnfolderBase]: For 104330/107172 co-relation queries the response was YES. [2023-11-06 22:23:30,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96456 conditions, 21655 events. 13705/21655 cut-off events. For 104330/107172 co-relation queries the response was YES. Maximal size of possible extension queue 1164. Compared 162503 event pairs, 3088 based on Foata normal form. 519/21731 useless extension candidates. Maximal degree in co-relation 96430. Up to 11220 conditions per place. [2023-11-06 22:23:30,951 INFO L140 encePairwiseOnDemand]: 290/299 looper letters, 151 selfloop transitions, 13 changer transitions 85/274 dead transitions. [2023-11-06 22:23:30,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 274 transitions, 3060 flow [2023-11-06 22:23:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:23:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1000 transitions. [2023-11-06 22:23:30,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47778308647873863 [2023-11-06 22:23:30,956 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1000 transitions. [2023-11-06 22:23:30,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1000 transitions. [2023-11-06 22:23:30,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:23:30,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1000 transitions. [2023-11-06 22:23:30,961 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) [2023-11-06 22:23:30,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:30,966 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 299.0) internal successors, (2392), 8 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:30,967 INFO L175 Difference]: Start difference. First operand has 86 places, 91 transitions, 914 flow. Second operand 7 states and 1000 transitions. [2023-11-06 22:23:30,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 274 transitions, 3060 flow