./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/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_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/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_f39f046b-9473-4b17-8ba9-bf132f57f49a/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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:32,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:33,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:54:33,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:33,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:33,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:33,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:33,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:33,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:33,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:33,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:33,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:33,159 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:33,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:33,162 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:33,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:33,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:33,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:33,164 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:54:33,165 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:54:33,165 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:54:33,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:33,167 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:54:33,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:54:33,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:33,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:33,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:33,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:33,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:33,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:33,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:33,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:33,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:33,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:33,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:33,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:33,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:33,175 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:33,175 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_f39f046b-9473-4b17-8ba9-bf132f57f49a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 [2023-11-06 22:54:33,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:33,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:33,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:33,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:33,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:33,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2023-11-06 22:54:37,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:37,534 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:37,535 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2023-11-06 22:54:37,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/data/9b7944d05/4f6ba820a2664a2cb080ebf800a0e411/FLAG811a7ebee [2023-11-06 22:54:37,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/data/9b7944d05/4f6ba820a2664a2cb080ebf800a0e411 [2023-11-06 22:54:37,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:37,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:37,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:37,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:37,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:37,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:37" (1/1) ... [2023-11-06 22:54:37,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215991ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:37, skipping insertion in model container [2023-11-06 22:54:37,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:37" (1/1) ... [2023-11-06 22:54:37,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:38,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:38,196 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:38,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:38,317 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:54:38,318 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:54:38,327 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:38,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38 WrapperNode [2023-11-06 22:54:38,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:38,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:38,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:38,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:38,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,476 INFO L138 Inliner]: procedures = 177, calls = 70, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 166 [2023-11-06 22:54:38,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:38,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:38,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:38,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:38,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:38,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:38,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:38,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:38,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (1/1) ... [2023-11-06 22:54:38,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:38,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:38,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:38,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f39f046b-9473-4b17-8ba9-bf132f57f49a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:54:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:54:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:54:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:54:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:54:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:54:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:54:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:54:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:54:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:54:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:54:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:54:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:38,701 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 22:54:38,903 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:38,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:39,388 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:39,641 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:39,641 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:54:39,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:39 BoogieIcfgContainer [2023-11-06 22:54:39,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:39,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:39,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:39,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:39,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:37" (1/3) ... [2023-11-06 22:54:39,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe93c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:39, skipping insertion in model container [2023-11-06 22:54:39,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:38" (2/3) ... [2023-11-06 22:54:39,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe93c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:39, skipping insertion in model container [2023-11-06 22:54:39,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:39" (3/3) ... [2023-11-06 22:54:39,656 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2023-11-06 22:54:39,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:39,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-06 22:54:39,681 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:54:39,788 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:54:39,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 149 transitions, 314 flow [2023-11-06 22:54:39,957 INFO L124 PetriNetUnfolderBase]: 3/145 cut-off events. [2023-11-06 22:54:39,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:54:39,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 3/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-06 22:54:39,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 149 transitions, 314 flow [2023-11-06 22:54:39,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 145 transitions, 302 flow [2023-11-06 22:54:39,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:54:39,999 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 145 transitions, 302 flow [2023-11-06 22:54:40,002 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 145 transitions, 302 flow [2023-11-06 22:54:40,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 302 flow [2023-11-06 22:54:40,073 INFO L124 PetriNetUnfolderBase]: 3/145 cut-off events. [2023-11-06 22:54:40,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:54:40,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 3/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-06 22:54:40,082 INFO L119 LiptonReduction]: Number of co-enabled transitions 3842 [2023-11-06 22:54:47,381 INFO L134 LiptonReduction]: Checked pairs total: 10300 [2023-11-06 22:54:47,381 INFO L136 LiptonReduction]: Total number of compositions: 138 [2023-11-06 22:54:47,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:47,407 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;@4b369b20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:47,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-06 22:54:47,410 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:54:47,410 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-06 22:54:47,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:54:47,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:47,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:54:47,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:54:47,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash 635, now seen corresponding path program 1 times [2023-11-06 22:54:47,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:47,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986400978] [2023-11-06 22:54:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:47,582 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 22:54:47,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:47,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986400978] [2023-11-06 22:54:47,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986400978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:47,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:47,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:54:47,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810908063] [2023-11-06 22:54:47,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:47,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:54:47,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:47,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:54:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:54:47,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 287 [2023-11-06 22:54:47,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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 22:54:47,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:47,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 287 [2023-11-06 22:54:47,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:49,348 INFO L124 PetriNetUnfolderBase]: 5761/7951 cut-off events. [2023-11-06 22:54:49,349 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-06 22:54:49,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15941 conditions, 7951 events. 5761/7951 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 41978 event pairs, 5761 based on Foata normal form. 240/6864 useless extension candidates. Maximal degree in co-relation 15929. Up to 7833 conditions per place. [2023-11-06 22:54:49,450 INFO L140 encePairwiseOnDemand]: 278/287 looper letters, 27 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-11-06 22:54:49,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 130 flow [2023-11-06 22:54:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:54:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:54:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 304 transitions. [2023-11-06 22:54:49,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5296167247386759 [2023-11-06 22:54:49,477 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 304 transitions. [2023-11-06 22:54:49,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 304 transitions. [2023-11-06 22:54:49,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:49,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 304 transitions. [2023-11-06 22:54:49,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.0) internal successors, (304), 2 states have internal predecessors, (304), 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 22:54:49,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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 22:54:49,504 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 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 22:54:49,506 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 2 states and 304 transitions. [2023-11-06 22:54:49,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 130 flow [2023-11-06 22:54:49,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:54:49,518 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow [2023-11-06 22:54:49,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-11-06 22:54:49,526 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places. [2023-11-06 22:54:49,526 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow [2023-11-06 22:54:49,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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 22:54:49,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:49,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:49,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:54:49,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:54:49,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash -588648493, now seen corresponding path program 1 times [2023-11-06 22:54:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958681485] [2023-11-06 22:54:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:50,054 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 22:54:50,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:50,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958681485] [2023-11-06 22:54:50,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958681485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:50,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:50,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:54:50,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739233939] [2023-11-06 22:54:50,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:50,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:50,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:50,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:50,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:50,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 287 [2023-11-06 22:54:50,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 22:54:50,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:50,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 287 [2023-11-06 22:54:50,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:51,247 INFO L124 PetriNetUnfolderBase]: 4535/6443 cut-off events. [2023-11-06 22:54:51,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:54:51,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12772 conditions, 6443 events. 4535/6443 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 34835 event pairs, 1241 based on Foata normal form. 0/5803 useless extension candidates. Maximal degree in co-relation 12769. Up to 4903 conditions per place. [2023-11-06 22:54:51,303 INFO L140 encePairwiseOnDemand]: 284/287 looper letters, 37 selfloop transitions, 2 changer transitions 4/48 dead transitions. [2023-11-06 22:54:51,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 192 flow [2023-11-06 22:54:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:54:51,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2023-11-06 22:54:51,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5145180023228804 [2023-11-06 22:54:51,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2023-11-06 22:54:51,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2023-11-06 22:54:51,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:51,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2023-11-06 22:54:51,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 22:54:51,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 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 22:54:51,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 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 22:54:51,326 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 443 transitions. [2023-11-06 22:54:51,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 192 flow [2023-11-06 22:54:51,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:54:51,330 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 70 flow [2023-11-06 22:54:51,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2023-11-06 22:54:51,333 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places. [2023-11-06 22:54:51,333 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 70 flow [2023-11-06 22:54:51,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 22:54:51,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:51,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:51,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:54:51,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:54:51,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1688233437, now seen corresponding path program 1 times [2023-11-06 22:54:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155121782] [2023-11-06 22:54:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:52,409 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 22:54:52,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:52,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155121782] [2023-11-06 22:54:52,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155121782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:52,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:52,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:52,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176899879] [2023-11-06 22:54:52,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:52,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 287 [2023-11-06 22:54:52,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 22:54:52,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:52,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 287 [2023-11-06 22:54:52,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:56,417 INFO L124 PetriNetUnfolderBase]: 14389/20114 cut-off events. [2023-11-06 22:54:56,417 INFO L125 PetriNetUnfolderBase]: For 990/990 co-relation queries the response was YES. [2023-11-06 22:54:56,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40867 conditions, 20114 events. 14389/20114 cut-off events. For 990/990 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 116141 event pairs, 983 based on Foata normal form. 0/19514 useless extension candidates. Maximal degree in co-relation 40863. Up to 12769 conditions per place. [2023-11-06 22:54:56,627 INFO L140 encePairwiseOnDemand]: 273/287 looper letters, 85 selfloop transitions, 29 changer transitions 0/115 dead transitions. [2023-11-06 22:54:56,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 115 transitions, 490 flow [2023-11-06 22:54:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:54:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:54:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 950 transitions. [2023-11-06 22:54:56,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4728720756595321 [2023-11-06 22:54:56,634 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 950 transitions. [2023-11-06 22:54:56,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 950 transitions. [2023-11-06 22:54:56,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:56,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 950 transitions. [2023-11-06 22:54:56,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.71428571428572) internal successors, (950), 7 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:56,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:54:56,648 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:54:56,648 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 70 flow. Second operand 7 states and 950 transitions. [2023-11-06 22:54:56,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 115 transitions, 490 flow [2023-11-06 22:54:56,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 115 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:54:56,652 INFO L231 Difference]: Finished difference. Result has 49 places, 58 transitions, 268 flow [2023-11-06 22:54:56,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=49, PETRI_TRANSITIONS=58} [2023-11-06 22:54:56,653 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -4 predicate places. [2023-11-06 22:54:56,654 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 58 transitions, 268 flow [2023-11-06 22:54:56,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 22:54:56,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:56,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:56,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:54:56,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:54:56,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -795630440, now seen corresponding path program 1 times [2023-11-06 22:54:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604761449] [2023-11-06 22:54:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:57,736 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 22:54:57,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:57,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604761449] [2023-11-06 22:54:57,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604761449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:57,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:57,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:57,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655895510] [2023-11-06 22:54:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:57,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:57,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:57,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:57,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:58,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 287 [2023-11-06 22:54:58,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 58 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 116.85714285714286) internal successors, (818), 7 states have internal predecessors, (818), 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 22:54:58,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:58,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 287 [2023-11-06 22:54:58,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:00,993 INFO L124 PetriNetUnfolderBase]: 9688/13805 cut-off events. [2023-11-06 22:55:00,993 INFO L125 PetriNetUnfolderBase]: For 11154/11590 co-relation queries the response was YES. [2023-11-06 22:55:01,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42275 conditions, 13805 events. 9688/13805 cut-off events. For 11154/11590 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 80893 event pairs, 1140 based on Foata normal form. 1127/14680 useless extension candidates. Maximal degree in co-relation 42267. Up to 7821 conditions per place. [2023-11-06 22:55:01,126 INFO L140 encePairwiseOnDemand]: 281/287 looper letters, 67 selfloop transitions, 6 changer transitions 21/101 dead transitions. [2023-11-06 22:55:01,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 101 transitions, 630 flow [2023-11-06 22:55:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 858 transitions. [2023-11-06 22:55:01,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42707814833250374 [2023-11-06 22:55:01,132 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 858 transitions. [2023-11-06 22:55:01,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 858 transitions. [2023-11-06 22:55:01,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:01,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 858 transitions. [2023-11-06 22:55:01,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.57142857142857) internal successors, (858), 7 states have internal predecessors, (858), 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 22:55:01,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:01,146 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:01,146 INFO L175 Difference]: Start difference. First operand has 49 places, 58 transitions, 268 flow. Second operand 7 states and 858 transitions. [2023-11-06 22:55:01,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 101 transitions, 630 flow [2023-11-06 22:55:01,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 101 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:55:01,259 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 180 flow [2023-11-06 22:55:01,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2023-11-06 22:55:01,261 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2023-11-06 22:55:01,261 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 180 flow [2023-11-06 22:55:01,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.85714285714286) internal successors, (818), 7 states have internal predecessors, (818), 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 22:55:01,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:01,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:01,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:55:01,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:01,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash 587850540, now seen corresponding path program 1 times [2023-11-06 22:55:01,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:01,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488717714] [2023-11-06 22:55:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:01,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:02,026 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 22:55:02,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:02,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488717714] [2023-11-06 22:55:02,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488717714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:02,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:02,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244612680] [2023-11-06 22:55:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:02,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:55:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:55:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:55:02,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 287 [2023-11-06 22:55:02,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 22:55:02,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:02,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 287 [2023-11-06 22:55:02,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:04,710 INFO L124 PetriNetUnfolderBase]: 10131/14080 cut-off events. [2023-11-06 22:55:04,710 INFO L125 PetriNetUnfolderBase]: For 13120/13120 co-relation queries the response was YES. [2023-11-06 22:55:04,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43631 conditions, 14080 events. 10131/14080 cut-off events. For 13120/13120 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 73924 event pairs, 2325 based on Foata normal form. 600/14678 useless extension candidates. Maximal degree in co-relation 43622. Up to 7187 conditions per place. [2023-11-06 22:55:04,811 INFO L140 encePairwiseOnDemand]: 274/287 looper letters, 51 selfloop transitions, 13 changer transitions 43/108 dead transitions. [2023-11-06 22:55:04,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 108 transitions, 678 flow [2023-11-06 22:55:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:04,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:04,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 925 transitions. [2023-11-06 22:55:04,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4604280736684918 [2023-11-06 22:55:04,817 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 925 transitions. [2023-11-06 22:55:04,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 925 transitions. [2023-11-06 22:55:04,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:04,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 925 transitions. [2023-11-06 22:55:04,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.14285714285714) internal successors, (925), 7 states have internal predecessors, (925), 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 22:55:04,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:04,828 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:04,829 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 180 flow. Second operand 7 states and 925 transitions. [2023-11-06 22:55:04,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 108 transitions, 678 flow [2023-11-06 22:55:04,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 108 transitions, 662 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-11-06 22:55:04,923 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 289 flow [2023-11-06 22:55:04,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=289, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2023-11-06 22:55:04,926 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2023-11-06 22:55:04,927 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 289 flow [2023-11-06 22:55:04,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 22:55:04,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:04,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:04,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:55:04,928 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:04,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash -605613523, now seen corresponding path program 1 times [2023-11-06 22:55:04,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:04,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309737098] [2023-11-06 22:55:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:04,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:05,864 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 22:55:05,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:05,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309737098] [2023-11-06 22:55:05,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309737098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:05,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:05,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:05,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141755010] [2023-11-06 22:55:05,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:05,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:55:05,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:55:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:55:05,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 287 [2023-11-06 22:55:05,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 22:55:05,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:05,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 287 [2023-11-06 22:55:05,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:08,444 INFO L124 PetriNetUnfolderBase]: 11991/16534 cut-off events. [2023-11-06 22:55:08,444 INFO L125 PetriNetUnfolderBase]: For 34057/34394 co-relation queries the response was YES. [2023-11-06 22:55:08,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58542 conditions, 16534 events. 11991/16534 cut-off events. For 34057/34394 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 87312 event pairs, 2262 based on Foata normal form. 738/17148 useless extension candidates. Maximal degree in co-relation 58529. Up to 13413 conditions per place. [2023-11-06 22:55:08,591 INFO L140 encePairwiseOnDemand]: 275/287 looper letters, 73 selfloop transitions, 26 changer transitions 45/148 dead transitions. [2023-11-06 22:55:08,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 148 transitions, 1165 flow [2023-11-06 22:55:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2023-11-06 22:55:08,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713787954206073 [2023-11-06 22:55:08,597 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2023-11-06 22:55:08,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2023-11-06 22:55:08,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:08,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2023-11-06 22:55:08,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 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 22:55:08,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:08,611 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:08,611 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 289 flow. Second operand 7 states and 947 transitions. [2023-11-06 22:55:08,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 148 transitions, 1165 flow [2023-11-06 22:55:09,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 148 transitions, 1150 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-06 22:55:09,374 INFO L231 Difference]: Finished difference. Result has 62 places, 72 transitions, 618 flow [2023-11-06 22:55:09,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=618, PETRI_PLACES=62, PETRI_TRANSITIONS=72} [2023-11-06 22:55:09,375 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2023-11-06 22:55:09,375 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 72 transitions, 618 flow [2023-11-06 22:55:09,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 22:55:09,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:09,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:09,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:55:09,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:09,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1660180159, now seen corresponding path program 1 times [2023-11-06 22:55:09,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:09,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52325108] [2023-11-06 22:55:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:09,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:10,058 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 22:55:10,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:10,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52325108] [2023-11-06 22:55:10,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52325108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:10,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:10,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:55:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529296497] [2023-11-06 22:55:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:10,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:55:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:55:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:55:10,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 287 [2023-11-06 22:55:10,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 72 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 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 22:55:10,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:10,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 287 [2023-11-06 22:55:10,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:12,646 INFO L124 PetriNetUnfolderBase]: 10127/14454 cut-off events. [2023-11-06 22:55:12,646 INFO L125 PetriNetUnfolderBase]: For 43416/43795 co-relation queries the response was YES. [2023-11-06 22:55:12,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61712 conditions, 14454 events. 10127/14454 cut-off events. For 43416/43795 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 80704 event pairs, 2314 based on Foata normal form. 574/14562 useless extension candidates. Maximal degree in co-relation 61695. Up to 9523 conditions per place. [2023-11-06 22:55:12,772 INFO L140 encePairwiseOnDemand]: 279/287 looper letters, 75 selfloop transitions, 26 changer transitions 36/155 dead transitions. [2023-11-06 22:55:12,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 155 transitions, 1486 flow [2023-11-06 22:55:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 983 transitions. [2023-11-06 22:55:12,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48929815828770534 [2023-11-06 22:55:12,781 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 983 transitions. [2023-11-06 22:55:12,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 983 transitions. [2023-11-06 22:55:12,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:12,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 983 transitions. [2023-11-06 22:55:12,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.42857142857142) internal successors, (983), 7 states have internal predecessors, (983), 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 22:55:12,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:12,798 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:12,799 INFO L175 Difference]: Start difference. First operand has 62 places, 72 transitions, 618 flow. Second operand 7 states and 983 transitions. [2023-11-06 22:55:12,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 155 transitions, 1486 flow [2023-11-06 22:55:13,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 155 transitions, 1462 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-11-06 22:55:13,232 INFO L231 Difference]: Finished difference. Result has 67 places, 90 transitions, 922 flow [2023-11-06 22:55:13,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=922, PETRI_PLACES=67, PETRI_TRANSITIONS=90} [2023-11-06 22:55:13,233 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2023-11-06 22:55:13,233 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 90 transitions, 922 flow [2023-11-06 22:55:13,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 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 22:55:13,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:13,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:13,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:55:13,234 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:13,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1608739751, now seen corresponding path program 1 times [2023-11-06 22:55:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:13,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094328067] [2023-11-06 22:55:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:13,962 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 22:55:13,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:13,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094328067] [2023-11-06 22:55:13,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094328067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:13,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:13,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:55:13,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106211448] [2023-11-06 22:55:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:13,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:55:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:55:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:55:14,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 287 [2023-11-06 22:55:14,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 90 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:14,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:14,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 287 [2023-11-06 22:55:14,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:16,883 INFO L124 PetriNetUnfolderBase]: 10758/15277 cut-off events. [2023-11-06 22:55:16,883 INFO L125 PetriNetUnfolderBase]: For 72617/73121 co-relation queries the response was YES. [2023-11-06 22:55:16,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73556 conditions, 15277 events. 10758/15277 cut-off events. For 72617/73121 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 85357 event pairs, 2910 based on Foata normal form. 573/15450 useless extension candidates. Maximal degree in co-relation 73536. Up to 10059 conditions per place. [2023-11-06 22:55:17,026 INFO L140 encePairwiseOnDemand]: 278/287 looper letters, 107 selfloop transitions, 48 changer transitions 24/197 dead transitions. [2023-11-06 22:55:17,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 197 transitions, 2213 flow [2023-11-06 22:55:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 966 transitions. [2023-11-06 22:55:17,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808362369337979 [2023-11-06 22:55:17,043 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 966 transitions. [2023-11-06 22:55:17,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 966 transitions. [2023-11-06 22:55:17,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:17,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 966 transitions. [2023-11-06 22:55:17,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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 22:55:17,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:17,055 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:17,055 INFO L175 Difference]: Start difference. First operand has 67 places, 90 transitions, 922 flow. Second operand 7 states and 966 transitions. [2023-11-06 22:55:17,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 197 transitions, 2213 flow [2023-11-06 22:55:17,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 197 transitions, 2153 flow, removed 21 selfloop flow, removed 3 redundant places. [2023-11-06 22:55:17,538 INFO L231 Difference]: Finished difference. Result has 72 places, 124 transitions, 1504 flow [2023-11-06 22:55:17,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1504, PETRI_PLACES=72, PETRI_TRANSITIONS=124} [2023-11-06 22:55:17,539 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2023-11-06 22:55:17,539 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 124 transitions, 1504 flow [2023-11-06 22:55:17,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:17,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:17,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:17,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:55:17,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:17,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1592652611, now seen corresponding path program 2 times [2023-11-06 22:55:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959084838] [2023-11-06 22:55:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:18,421 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 22:55:18,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:18,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959084838] [2023-11-06 22:55:18,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959084838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:18,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:18,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:55:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121710475] [2023-11-06 22:55:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:18,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:55:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:55:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:55:18,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 287 [2023-11-06 22:55:18,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 124 transitions, 1504 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 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 22:55:18,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:18,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 287 [2023-11-06 22:55:18,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:21,128 INFO L124 PetriNetUnfolderBase]: 10524/14976 cut-off events. [2023-11-06 22:55:21,129 INFO L125 PetriNetUnfolderBase]: For 91359/91918 co-relation queries the response was YES. [2023-11-06 22:55:21,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77236 conditions, 14976 events. 10524/14976 cut-off events. For 91359/91918 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 83796 event pairs, 3039 based on Foata normal form. 669/15343 useless extension candidates. Maximal degree in co-relation 77213. Up to 10820 conditions per place. [2023-11-06 22:55:21,277 INFO L140 encePairwiseOnDemand]: 279/287 looper letters, 115 selfloop transitions, 34 changer transitions 14/181 dead transitions. [2023-11-06 22:55:21,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 181 transitions, 2329 flow [2023-11-06 22:55:21,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:55:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:55:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 705 transitions. [2023-11-06 22:55:21,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4912891986062718 [2023-11-06 22:55:21,282 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 705 transitions. [2023-11-06 22:55:21,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 705 transitions. [2023-11-06 22:55:21,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:21,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 705 transitions. [2023-11-06 22:55:21,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 22:55:21,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 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 22:55:21,291 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 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 22:55:21,291 INFO L175 Difference]: Start difference. First operand has 72 places, 124 transitions, 1504 flow. Second operand 5 states and 705 transitions. [2023-11-06 22:55:21,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 181 transitions, 2329 flow [2023-11-06 22:55:21,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 181 transitions, 2293 flow, removed 18 selfloop flow, removed 1 redundant places. [2023-11-06 22:55:21,715 INFO L231 Difference]: Finished difference. Result has 75 places, 145 transitions, 1879 flow [2023-11-06 22:55:21,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1478, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1879, PETRI_PLACES=75, PETRI_TRANSITIONS=145} [2023-11-06 22:55:21,716 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2023-11-06 22:55:21,717 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 145 transitions, 1879 flow [2023-11-06 22:55:21,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 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 22:55:21,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:21,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:21,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:55:21,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:21,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash -292696719, now seen corresponding path program 1 times [2023-11-06 22:55:21,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:21,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448023609] [2023-11-06 22:55:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:22,325 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 22:55:22,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:22,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448023609] [2023-11-06 22:55:22,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448023609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:22,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:22,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:22,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062048912] [2023-11-06 22:55:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:22,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:55:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:55:22,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:55:22,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 287 [2023-11-06 22:55:22,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 145 transitions, 1879 flow. Second operand has 7 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 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 22:55:22,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:22,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 287 [2023-11-06 22:55:22,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:25,052 INFO L124 PetriNetUnfolderBase]: 10674/15192 cut-off events. [2023-11-06 22:55:25,052 INFO L125 PetriNetUnfolderBase]: For 105998/106871 co-relation queries the response was YES. [2023-11-06 22:55:25,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83184 conditions, 15192 events. 10674/15192 cut-off events. For 105998/106871 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 85997 event pairs, 2144 based on Foata normal form. 510/15377 useless extension candidates. Maximal degree in co-relation 83159. Up to 9954 conditions per place. [2023-11-06 22:55:25,187 INFO L140 encePairwiseOnDemand]: 278/287 looper letters, 131 selfloop transitions, 50 changer transitions 21/220 dead transitions. [2023-11-06 22:55:25,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 220 transitions, 2989 flow [2023-11-06 22:55:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 967 transitions. [2023-11-06 22:55:25,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48133399701343954 [2023-11-06 22:55:25,193 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 967 transitions. [2023-11-06 22:55:25,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 967 transitions. [2023-11-06 22:55:25,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:25,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 967 transitions. [2023-11-06 22:55:25,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.14285714285714) internal successors, (967), 7 states have internal predecessors, (967), 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 22:55:25,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:25,203 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:25,203 INFO L175 Difference]: Start difference. First operand has 75 places, 145 transitions, 1879 flow. Second operand 7 states and 967 transitions. [2023-11-06 22:55:25,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 220 transitions, 2989 flow [2023-11-06 22:55:25,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 220 transitions, 2902 flow, removed 23 selfloop flow, removed 3 redundant places. [2023-11-06 22:55:25,934 INFO L231 Difference]: Finished difference. Result has 80 places, 158 transitions, 2149 flow [2023-11-06 22:55:25,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2149, PETRI_PLACES=80, PETRI_TRANSITIONS=158} [2023-11-06 22:55:25,936 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 27 predicate places. [2023-11-06 22:55:25,936 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 158 transitions, 2149 flow [2023-11-06 22:55:25,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 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 22:55:25,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:25,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:25,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:55:25,938 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:25,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:25,939 INFO L85 PathProgramCache]: Analyzing trace with hash -278137569, now seen corresponding path program 2 times [2023-11-06 22:55:25,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:25,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887775352] [2023-11-06 22:55:25,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:25,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:26,756 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 22:55:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:26,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887775352] [2023-11-06 22:55:26,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887775352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:26,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:26,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212480682] [2023-11-06 22:55:26,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:26,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:55:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:55:26,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:55:26,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 287 [2023-11-06 22:55:26,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 158 transitions, 2149 flow. Second operand has 7 states, 7 states have (on average 131.28571428571428) internal successors, (919), 7 states have internal predecessors, (919), 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 22:55:26,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:26,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 287 [2023-11-06 22:55:26,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:30,256 INFO L124 PetriNetUnfolderBase]: 10718/15276 cut-off events. [2023-11-06 22:55:30,256 INFO L125 PetriNetUnfolderBase]: For 136896/137753 co-relation queries the response was YES. [2023-11-06 22:55:30,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89068 conditions, 15276 events. 10718/15276 cut-off events. For 136896/137753 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 86801 event pairs, 2138 based on Foata normal form. 510/15461 useless extension candidates. Maximal degree in co-relation 89041. Up to 9952 conditions per place. [2023-11-06 22:55:30,390 INFO L140 encePairwiseOnDemand]: 279/287 looper letters, 131 selfloop transitions, 60 changer transitions 21/230 dead transitions. [2023-11-06 22:55:30,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 230 transitions, 3330 flow [2023-11-06 22:55:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:30,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 981 transitions. [2023-11-06 22:55:30,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883026381284221 [2023-11-06 22:55:30,396 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 981 transitions. [2023-11-06 22:55:30,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 981 transitions. [2023-11-06 22:55:30,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:30,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 981 transitions. [2023-11-06 22:55:30,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.14285714285714) internal successors, (981), 7 states have internal predecessors, (981), 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 22:55:30,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:30,406 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:30,407 INFO L175 Difference]: Start difference. First operand has 80 places, 158 transitions, 2149 flow. Second operand 7 states and 981 transitions. [2023-11-06 22:55:30,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 230 transitions, 3330 flow [2023-11-06 22:55:30,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 230 transitions, 3204 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-11-06 22:55:30,972 INFO L231 Difference]: Finished difference. Result has 83 places, 168 transitions, 2386 flow [2023-11-06 22:55:30,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=2027, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2386, PETRI_PLACES=83, PETRI_TRANSITIONS=168} [2023-11-06 22:55:30,973 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 30 predicate places. [2023-11-06 22:55:30,973 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 168 transitions, 2386 flow [2023-11-06 22:55:30,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.28571428571428) internal successors, (919), 7 states have internal predecessors, (919), 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 22:55:30,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:30,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:30,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:55:30,975 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:30,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:30,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2128119055, now seen corresponding path program 3 times [2023-11-06 22:55:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617783160] [2023-11-06 22:55:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:30,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:31,713 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 22:55:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617783160] [2023-11-06 22:55:31,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617783160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:31,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329927476] [2023-11-06 22:55:31,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:55:31,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:55:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:55:31,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 287 [2023-11-06 22:55:31,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 168 transitions, 2386 flow. Second operand has 7 states, 7 states have (on average 117.42857142857143) internal successors, (822), 7 states have internal predecessors, (822), 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 22:55:31,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:31,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 287 [2023-11-06 22:55:31,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:36,865 INFO L124 PetriNetUnfolderBase]: 17004/23413 cut-off events. [2023-11-06 22:55:36,866 INFO L125 PetriNetUnfolderBase]: For 232803/232803 co-relation queries the response was YES. [2023-11-06 22:55:36,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138968 conditions, 23413 events. 17004/23413 cut-off events. For 232803/232803 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 126601 event pairs, 1325 based on Foata normal form. 540/23953 useless extension candidates. Maximal degree in co-relation 138939. Up to 11430 conditions per place. [2023-11-06 22:55:37,059 INFO L140 encePairwiseOnDemand]: 273/287 looper letters, 161 selfloop transitions, 174 changer transitions 41/376 dead transitions. [2023-11-06 22:55:37,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 376 transitions, 5400 flow [2023-11-06 22:55:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:55:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:55:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1420 transitions. [2023-11-06 22:55:37,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4497941083306937 [2023-11-06 22:55:37,067 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1420 transitions. [2023-11-06 22:55:37,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1420 transitions. [2023-11-06 22:55:37,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:37,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1420 transitions. [2023-11-06 22:55:37,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.0909090909091) internal successors, (1420), 11 states have internal predecessors, (1420), 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 22:55:37,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 287.0) internal successors, (3444), 12 states have internal predecessors, (3444), 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 22:55:37,083 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 287.0) internal successors, (3444), 12 states have internal predecessors, (3444), 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 22:55:37,083 INFO L175 Difference]: Start difference. First operand has 83 places, 168 transitions, 2386 flow. Second operand 11 states and 1420 transitions. [2023-11-06 22:55:37,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 376 transitions, 5400 flow [2023-11-06 22:55:38,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 376 transitions, 5134 flow, removed 108 selfloop flow, removed 5 redundant places. [2023-11-06 22:55:38,640 INFO L231 Difference]: Finished difference. Result has 94 places, 252 transitions, 4187 flow [2023-11-06 22:55:38,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=2275, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4187, PETRI_PLACES=94, PETRI_TRANSITIONS=252} [2023-11-06 22:55:38,641 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 41 predicate places. [2023-11-06 22:55:38,641 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 252 transitions, 4187 flow [2023-11-06 22:55:38,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 117.42857142857143) internal successors, (822), 7 states have internal predecessors, (822), 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 22:55:38,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:38,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:38,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:55:38,643 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:38,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1770024740, now seen corresponding path program 1 times [2023-11-06 22:55:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668174772] [2023-11-06 22:55:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:39,672 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 22:55:39,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:39,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668174772] [2023-11-06 22:55:39,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668174772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:39,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:39,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:55:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414659822] [2023-11-06 22:55:39,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:39,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:55:39,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:39,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:55:39,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:55:39,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 287 [2023-11-06 22:55:39,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 252 transitions, 4187 flow. Second operand has 8 states, 8 states have (on average 129.125) internal successors, (1033), 8 states have internal predecessors, (1033), 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 22:55:39,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:39,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 287 [2023-11-06 22:55:39,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:44,669 INFO L124 PetriNetUnfolderBase]: 15385/21945 cut-off events. [2023-11-06 22:55:44,669 INFO L125 PetriNetUnfolderBase]: For 316349/318676 co-relation queries the response was YES. [2023-11-06 22:55:44,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152759 conditions, 21945 events. 15385/21945 cut-off events. For 316349/318676 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 132060 event pairs, 2418 based on Foata normal form. 846/22142 useless extension candidates. Maximal degree in co-relation 152726. Up to 11454 conditions per place. [2023-11-06 22:55:44,906 INFO L140 encePairwiseOnDemand]: 279/287 looper letters, 146 selfloop transitions, 131 changer transitions 34/353 dead transitions. [2023-11-06 22:55:44,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 353 transitions, 6239 flow [2023-11-06 22:55:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:55:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:55:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 974 transitions. [2023-11-06 22:55:44,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848183175709308 [2023-11-06 22:55:44,912 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 974 transitions. [2023-11-06 22:55:44,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 974 transitions. [2023-11-06 22:55:44,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:44,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 974 transitions. [2023-11-06 22:55:44,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 7 states have internal predecessors, (974), 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 22:55:44,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:44,922 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 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 22:55:44,923 INFO L175 Difference]: Start difference. First operand has 94 places, 252 transitions, 4187 flow. Second operand 7 states and 974 transitions. [2023-11-06 22:55:44,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 353 transitions, 6239 flow [2023-11-06 22:55:47,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 353 transitions, 5968 flow, removed 99 selfloop flow, removed 4 redundant places. [2023-11-06 22:55:47,521 INFO L231 Difference]: Finished difference. Result has 96 places, 272 transitions, 4864 flow [2023-11-06 22:55:47,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=3985, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4864, PETRI_PLACES=96, PETRI_TRANSITIONS=272} [2023-11-06 22:55:47,522 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 43 predicate places. [2023-11-06 22:55:47,523 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 272 transitions, 4864 flow [2023-11-06 22:55:47,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 129.125) internal successors, (1033), 8 states have internal predecessors, (1033), 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 22:55:47,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:47,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:47,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:55:47,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:47,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash -562176256, now seen corresponding path program 2 times [2023-11-06 22:55:47,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:47,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729758222] [2023-11-06 22:55:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:47,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:48,391 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 22:55:48,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:48,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729758222] [2023-11-06 22:55:48,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729758222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:48,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:48,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:55:48,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341251524] [2023-11-06 22:55:48,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:48,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:55:48,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:48,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:55:48,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:55:48,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 287 [2023-11-06 22:55:48,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 272 transitions, 4864 flow. Second operand has 8 states, 8 states have (on average 129.125) internal successors, (1033), 8 states have internal predecessors, (1033), 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 22:55:48,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:48,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 287 [2023-11-06 22:55:48,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:55:52,923 INFO L124 PetriNetUnfolderBase]: 16036/22933 cut-off events. [2023-11-06 22:55:52,923 INFO L125 PetriNetUnfolderBase]: For 363551/365507 co-relation queries the response was YES. [2023-11-06 22:55:53,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165643 conditions, 22933 events. 16036/22933 cut-off events. For 363551/365507 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 139794 event pairs, 2583 based on Foata normal form. 669/22928 useless extension candidates. Maximal degree in co-relation 165608. Up to 14763 conditions per place. [2023-11-06 22:55:53,163 INFO L140 encePairwiseOnDemand]: 278/287 looper letters, 208 selfloop transitions, 108 changer transitions 18/376 dead transitions. [2023-11-06 22:55:53,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 376 transitions, 6768 flow [2023-11-06 22:55:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:55:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:55:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1372 transitions. [2023-11-06 22:55:53,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2023-11-06 22:55:53,169 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1372 transitions. [2023-11-06 22:55:53,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1372 transitions. [2023-11-06 22:55:53,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:55:53,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1372 transitions. [2023-11-06 22:55:53,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 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 22:55:53,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 287.0) internal successors, (3157), 11 states have internal predecessors, (3157), 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 22:55:53,181 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 287.0) internal successors, (3157), 11 states have internal predecessors, (3157), 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 22:55:53,181 INFO L175 Difference]: Start difference. First operand has 96 places, 272 transitions, 4864 flow. Second operand 10 states and 1372 transitions. [2023-11-06 22:55:53,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 376 transitions, 6768 flow [2023-11-06 22:55:55,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 376 transitions, 6465 flow, removed 100 selfloop flow, removed 3 redundant places. [2023-11-06 22:55:55,661 INFO L231 Difference]: Finished difference. Result has 106 places, 298 transitions, 5523 flow [2023-11-06 22:55:55,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=4628, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5523, PETRI_PLACES=106, PETRI_TRANSITIONS=298} [2023-11-06 22:55:55,663 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 53 predicate places. [2023-11-06 22:55:55,663 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 298 transitions, 5523 flow [2023-11-06 22:55:55,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 129.125) internal successors, (1033), 8 states have internal predecessors, (1033), 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 22:55:55,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:55:55,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:55:55,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:55:55,664 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-06 22:55:55,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:55,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2051828984, now seen corresponding path program 1 times [2023-11-06 22:55:55,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:55,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510676582] [2023-11-06 22:55:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:56,214 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 22:55:56,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:56,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510676582] [2023-11-06 22:55:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510676582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918208670] [2023-11-06 22:55:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:55:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:55:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:55:56,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 287 [2023-11-06 22:55:56,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 298 transitions, 5523 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 22:55:56,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:55:56,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 287 [2023-11-06 22:55:56,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand