./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/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_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/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_693edd5f-851c-4b04-9e6e-248481d34cb8/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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:27,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:27,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 21:53:27,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:27,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:27,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:27,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:27,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:27,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:27,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:27,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:27,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:27,937 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:27,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:27,939 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:27,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:27,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:27,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:27,941 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:53:27,941 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:53:27,942 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:53:27,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:27,943 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:53:27,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:53:27,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:27,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:27,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:27,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:27,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:27,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:27,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:27,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:27,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:27,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:27,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:27,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:27,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:27,949 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:27,949 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_693edd5f-851c-4b04-9e6e-248481d34cb8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2023-11-06 21:53:28,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:28,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:28,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:28,307 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:28,308 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:28,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 21:53:31,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:31,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:31,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 21:53:31,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/data/2719b8127/8a27aedbc7814229afd2f6f5de8c1ab7/FLAG944632554 [2023-11-06 21:53:31,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/data/2719b8127/8a27aedbc7814229afd2f6f5de8c1ab7 [2023-11-06 21:53:31,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:31,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:31,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:31,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:31,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:31,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:31" (1/1) ... [2023-11-06 21:53:31,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46883db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:31, skipping insertion in model container [2023-11-06 21:53:31,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:31" (1/1) ... [2023-11-06 21:53:31,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:32,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:32,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:32,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:32,555 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:53:32,556 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:53:32,564 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:32,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32 WrapperNode [2023-11-06 21:53:32,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:32,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:32,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:32,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:32,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,644 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 87 [2023-11-06 21:53:32,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:32,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:32,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:32,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:32,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:32,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:32,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:32,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:32,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:32,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:32,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:32,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:53:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:53:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:53:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:53:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:53:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:53:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:53:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:53:32,812 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:53:32,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:53:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 21:53:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 21:53:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:53:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:53:32,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:32,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:32,817 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 21:53:33,030 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:33,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:33,353 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:33,362 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:33,362 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:53:33,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33 BoogieIcfgContainer [2023-11-06 21:53:33,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:33,368 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:33,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:33,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:33,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:31" (1/3) ... [2023-11-06 21:53:33,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4dd2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:33, skipping insertion in model container [2023-11-06 21:53:33,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (2/3) ... [2023-11-06 21:53:33,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4dd2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:33, skipping insertion in model container [2023-11-06 21:53:33,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33" (3/3) ... [2023-11-06 21:53:33,375 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 21:53:33,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:33,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 21:53:33,397 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:53:33,478 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:53:33,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 124 transitions, 264 flow [2023-11-06 21:53:33,580 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-06 21:53:33,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:33,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 3/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-11-06 21:53:33,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 124 transitions, 264 flow [2023-11-06 21:53:33,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 115 transitions, 242 flow [2023-11-06 21:53:33,596 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:53:33,617 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 115 transitions, 242 flow [2023-11-06 21:53:33,620 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 115 transitions, 242 flow [2023-11-06 21:53:33,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 115 transitions, 242 flow [2023-11-06 21:53:33,654 INFO L124 PetriNetUnfolderBase]: 3/115 cut-off events. [2023-11-06 21:53:33,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:33,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 115 events. 3/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-11-06 21:53:33,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 2856 [2023-11-06 21:53:37,687 INFO L134 LiptonReduction]: Checked pairs total: 5625 [2023-11-06 21:53:37,687 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-06 21:53:37,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:37,764 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;@350a57de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:37,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-06 21:53:37,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:53:37,767 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:53:37,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:37,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:37,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:53:37,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:37,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 436, now seen corresponding path program 1 times [2023-11-06 21:53:37,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:37,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656909400] [2023-11-06 21:53:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:37,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:37,942 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 21:53:37,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656909400] [2023-11-06 21:53:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656909400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:37,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:37,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:53:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26884911] [2023-11-06 21:53:37,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:37,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:53:37,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:37,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:53:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:38,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 246 [2023-11-06 21:53:38,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 76 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 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 21:53:38,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:38,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 246 [2023-11-06 21:53:38,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:38,362 INFO L124 PetriNetUnfolderBase]: 920/1394 cut-off events. [2023-11-06 21:53:38,363 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 21:53:38,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2803 conditions, 1394 events. 920/1394 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6697 event pairs, 920 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2791. Up to 1324 conditions per place. [2023-11-06 21:53:38,387 INFO L140 encePairwiseOnDemand]: 237/246 looper letters, 19 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-11-06 21:53:38,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 23 transitions, 96 flow [2023-11-06 21:53:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:53:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:53:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 260 transitions. [2023-11-06 21:53:38,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284552845528455 [2023-11-06 21:53:38,405 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 260 transitions. [2023-11-06 21:53:38,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 260 transitions. [2023-11-06 21:53:38,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:38,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 260 transitions. [2023-11-06 21:53:38,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 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 21:53:38,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 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 21:53:38,420 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 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 21:53:38,422 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 76 flow. Second operand 2 states and 260 transitions. [2023-11-06 21:53:38,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 23 transitions, 96 flow [2023-11-06 21:53:38,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:53:38,429 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 54 flow [2023-11-06 21:53:38,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-11-06 21:53:38,435 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-11-06 21:53:38,436 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 54 flow [2023-11-06 21:53:38,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 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 21:53:38,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:38,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:38,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:38,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:38,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:38,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1578080062, now seen corresponding path program 1 times [2023-11-06 21:53:38,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:38,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579003971] [2023-11-06 21:53:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:38,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:39,066 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 21:53:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579003971] [2023-11-06 21:53:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579003971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:39,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:39,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:53:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546448472] [2023-11-06 21:53:39,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:39,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:39,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:39,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 246 [2023-11-06 21:53:39,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 21:53:39,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:39,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 246 [2023-11-06 21:53:39,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:39,370 INFO L124 PetriNetUnfolderBase]: 1048/1686 cut-off events. [2023-11-06 21:53:39,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:53:39,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3299 conditions, 1686 events. 1048/1686 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 9176 event pairs, 552 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 3296. Up to 1333 conditions per place. [2023-11-06 21:53:39,420 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 29 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2023-11-06 21:53:39,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 162 flow [2023-11-06 21:53:39,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:53:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2023-11-06 21:53:39,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2023-11-06 21:53:39,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2023-11-06 21:53:39,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2023-11-06 21:53:39,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:39,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2023-11-06 21:53:39,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 21:53:39,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 0 states have call successors, (0), 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 21:53:39,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 0 states have call successors, (0), 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 21:53:39,445 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 54 flow. Second operand 3 states and 360 transitions. [2023-11-06 21:53:39,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 162 flow [2023-11-06 21:53:39,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 162 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:53:39,447 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 100 flow [2023-11-06 21:53:39,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-11-06 21:53:39,449 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -7 predicate places. [2023-11-06 21:53:39,450 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 100 flow [2023-11-06 21:53:39,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 21:53:39,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:39,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:39,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:53:39,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:39,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1578080049, now seen corresponding path program 1 times [2023-11-06 21:53:39,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140069886] [2023-11-06 21:53:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:40,257 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 21:53:40,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140069886] [2023-11-06 21:53:40,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140069886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:40,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:40,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:40,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366657377] [2023-11-06 21:53:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:40,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:53:40,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:40,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:53:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:53:40,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 246 [2023-11-06 21:53:40,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 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 21:53:40,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:40,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 246 [2023-11-06 21:53:40,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:41,010 INFO L124 PetriNetUnfolderBase]: 834/1330 cut-off events. [2023-11-06 21:53:41,010 INFO L125 PetriNetUnfolderBase]: For 407/407 co-relation queries the response was YES. [2023-11-06 21:53:41,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3328 conditions, 1330 events. 834/1330 cut-off events. For 407/407 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6795 event pairs, 631 based on Foata normal form. 53/1375 useless extension candidates. Maximal degree in co-relation 3323. Up to 1045 conditions per place. [2023-11-06 21:53:41,025 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 41 selfloop transitions, 11 changer transitions 0/56 dead transitions. [2023-11-06 21:53:41,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 56 transitions, 314 flow [2023-11-06 21:53:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:53:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2023-11-06 21:53:41,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275067750677507 [2023-11-06 21:53:41,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 631 transitions. [2023-11-06 21:53:41,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 631 transitions. [2023-11-06 21:53:41,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:41,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 631 transitions. [2023-11-06 21:53:41,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 0 states have call successors, (0), 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 21:53:41,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:41,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:41,037 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 100 flow. Second operand 6 states and 631 transitions. [2023-11-06 21:53:41,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 56 transitions, 314 flow [2023-11-06 21:53:41,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:41,044 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 156 flow [2023-11-06 21:53:41,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-11-06 21:53:41,045 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-11-06 21:53:41,045 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 156 flow [2023-11-06 21:53:41,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 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 21:53:41,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:41,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:41,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:53:41,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:41,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:41,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1447572498, now seen corresponding path program 1 times [2023-11-06 21:53:41,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:41,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4137700] [2023-11-06 21:53:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:41,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:41,648 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 21:53:41,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4137700] [2023-11-06 21:53:41,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4137700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:41,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:41,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:41,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320741664] [2023-11-06 21:53:41,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:41,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:53:41,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:41,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:53:41,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:53:41,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 246 [2023-11-06 21:53:41,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 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 21:53:41,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:41,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 246 [2023-11-06 21:53:41,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:42,178 INFO L124 PetriNetUnfolderBase]: 696/1125 cut-off events. [2023-11-06 21:53:42,179 INFO L125 PetriNetUnfolderBase]: For 447/447 co-relation queries the response was YES. [2023-11-06 21:53:42,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2961 conditions, 1125 events. 696/1125 cut-off events. For 447/447 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5632 event pairs, 65 based on Foata normal form. 18/1106 useless extension candidates. Maximal degree in co-relation 2952. Up to 691 conditions per place. [2023-11-06 21:53:42,192 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 43 selfloop transitions, 9 changer transitions 0/56 dead transitions. [2023-11-06 21:53:42,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 56 transitions, 327 flow [2023-11-06 21:53:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:53:42,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 628 transitions. [2023-11-06 21:53:42,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4254742547425474 [2023-11-06 21:53:42,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 628 transitions. [2023-11-06 21:53:42,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 628 transitions. [2023-11-06 21:53:42,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:42,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 628 transitions. [2023-11-06 21:53:42,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.66666666666667) internal successors, (628), 6 states have internal predecessors, (628), 0 states have call successors, (0), 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 21:53:42,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:42,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:42,205 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 156 flow. Second operand 6 states and 628 transitions. [2023-11-06 21:53:42,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 56 transitions, 327 flow [2023-11-06 21:53:42,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:53:42,209 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 174 flow [2023-11-06 21:53:42,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2023-11-06 21:53:42,211 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 5 predicate places. [2023-11-06 21:53:42,211 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 174 flow [2023-11-06 21:53:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 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 21:53:42,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:42,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:42,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:53:42,213 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:42,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:42,213 INFO L85 PathProgramCache]: Analyzing trace with hash 505491860, now seen corresponding path program 1 times [2023-11-06 21:53:42,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:42,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592499672] [2023-11-06 21:53:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:42,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:42,702 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 21:53:42,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:42,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592499672] [2023-11-06 21:53:42,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592499672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:42,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:42,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:42,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58492696] [2023-11-06 21:53:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:42,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:53:42,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:42,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:53:42,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:53:43,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 246 [2023-11-06 21:53:43,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 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 21:53:43,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:43,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 246 [2023-11-06 21:53:43,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:43,298 INFO L124 PetriNetUnfolderBase]: 608/980 cut-off events. [2023-11-06 21:53:43,299 INFO L125 PetriNetUnfolderBase]: For 718/718 co-relation queries the response was YES. [2023-11-06 21:53:43,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 980 events. 608/980 cut-off events. For 718/718 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4765 event pairs, 166 based on Foata normal form. 12/952 useless extension candidates. Maximal degree in co-relation 2699. Up to 683 conditions per place. [2023-11-06 21:53:43,310 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 43 selfloop transitions, 11 changer transitions 0/58 dead transitions. [2023-11-06 21:53:43,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 371 flow [2023-11-06 21:53:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:53:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 629 transitions. [2023-11-06 21:53:43,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4261517615176152 [2023-11-06 21:53:43,314 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 629 transitions. [2023-11-06 21:53:43,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 629 transitions. [2023-11-06 21:53:43,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:43,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 629 transitions. [2023-11-06 21:53:43,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 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 21:53:43,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:43,322 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:43,322 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 174 flow. Second operand 6 states and 629 transitions. [2023-11-06 21:53:43,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 371 flow [2023-11-06 21:53:43,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 347 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:53:43,328 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 216 flow [2023-11-06 21:53:43,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=216, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2023-11-06 21:53:43,331 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 7 predicate places. [2023-11-06 21:53:43,332 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 216 flow [2023-11-06 21:53:43,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 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 21:53:43,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:43,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:43,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:53:43,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:43,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:43,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1038639711, now seen corresponding path program 1 times [2023-11-06 21:53:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:43,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592180403] [2023-11-06 21:53:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:43,966 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 21:53:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:43,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592180403] [2023-11-06 21:53:43,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592180403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:43,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:43,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106564750] [2023-11-06 21:53:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:43,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:43,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:44,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 246 [2023-11-06 21:53:44,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 216 flow. Second operand has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 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 21:53:44,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:44,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 246 [2023-11-06 21:53:44,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:44,740 INFO L124 PetriNetUnfolderBase]: 917/1451 cut-off events. [2023-11-06 21:53:44,740 INFO L125 PetriNetUnfolderBase]: For 1351/1351 co-relation queries the response was YES. [2023-11-06 21:53:44,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4001 conditions, 1451 events. 917/1451 cut-off events. For 1351/1351 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 7309 event pairs, 157 based on Foata normal form. 36/1462 useless extension candidates. Maximal degree in co-relation 3989. Up to 647 conditions per place. [2023-11-06 21:53:44,752 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 44 selfloop transitions, 11 changer transitions 17/75 dead transitions. [2023-11-06 21:53:44,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 486 flow [2023-11-06 21:53:44,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 795 transitions. [2023-11-06 21:53:44,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40396341463414637 [2023-11-06 21:53:44,757 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 795 transitions. [2023-11-06 21:53:44,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 795 transitions. [2023-11-06 21:53:44,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:44,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 795 transitions. [2023-11-06 21:53:44,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 99.375) internal successors, (795), 8 states have internal predecessors, (795), 0 states have call successors, (0), 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 21:53:44,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:44,766 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:44,767 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 216 flow. Second operand 8 states and 795 transitions. [2023-11-06 21:53:44,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 486 flow [2023-11-06 21:53:44,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 75 transitions, 473 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:53:44,775 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 265 flow [2023-11-06 21:53:44,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=265, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2023-11-06 21:53:44,778 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 15 predicate places. [2023-11-06 21:53:44,781 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 265 flow [2023-11-06 21:53:44,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 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 21:53:44,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:44,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:44,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:53:44,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:44,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:44,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1014837691, now seen corresponding path program 1 times [2023-11-06 21:53:44,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:44,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942743869] [2023-11-06 21:53:44,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:44,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:45,342 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 21:53:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942743869] [2023-11-06 21:53:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942743869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:45,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:45,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:53:45,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831169970] [2023-11-06 21:53:45,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:45,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:53:45,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:53:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:53:45,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 246 [2023-11-06 21:53:45,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 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 21:53:45,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:45,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 246 [2023-11-06 21:53:45,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:45,924 INFO L124 PetriNetUnfolderBase]: 471/771 cut-off events. [2023-11-06 21:53:45,924 INFO L125 PetriNetUnfolderBase]: For 1320/1321 co-relation queries the response was YES. [2023-11-06 21:53:45,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 771 events. 471/771 cut-off events. For 1320/1321 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3515 event pairs, 223 based on Foata normal form. 8/754 useless extension candidates. Maximal degree in co-relation 2380. Up to 553 conditions per place. [2023-11-06 21:53:45,933 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 46 selfloop transitions, 17 changer transitions 0/68 dead transitions. [2023-11-06 21:53:45,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 554 flow [2023-11-06 21:53:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:45,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:53:45,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2023-11-06 21:53:45,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4268292682926829 [2023-11-06 21:53:45,937 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2023-11-06 21:53:45,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2023-11-06 21:53:45,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:45,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2023-11-06 21:53:45,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 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 21:53:45,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:45,944 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:45,945 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 265 flow. Second operand 6 states and 630 transitions. [2023-11-06 21:53:45,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 554 flow [2023-11-06 21:53:45,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 515 flow, removed 10 selfloop flow, removed 6 redundant places. [2023-11-06 21:53:45,955 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 413 flow [2023-11-06 21:53:45,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2023-11-06 21:53:45,956 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 15 predicate places. [2023-11-06 21:53:45,956 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 413 flow [2023-11-06 21:53:45,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 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 21:53:45,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:45,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:45,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:53:45,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:45,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2088266308, now seen corresponding path program 1 times [2023-11-06 21:53:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:45,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928347289] [2023-11-06 21:53:45,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:46,538 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 21:53:46,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:46,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928347289] [2023-11-06 21:53:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928347289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:46,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:46,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:46,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303434379] [2023-11-06 21:53:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:46,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:46,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:46,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 246 [2023-11-06 21:53:46,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 413 flow. Second operand has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:46,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:46,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 246 [2023-11-06 21:53:46,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:47,355 INFO L124 PetriNetUnfolderBase]: 1101/1760 cut-off events. [2023-11-06 21:53:47,355 INFO L125 PetriNetUnfolderBase]: For 2499/2500 co-relation queries the response was YES. [2023-11-06 21:53:47,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 1760 events. 1101/1760 cut-off events. For 2499/2500 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8963 event pairs, 334 based on Foata normal form. 24/1748 useless extension candidates. Maximal degree in co-relation 5221. Up to 909 conditions per place. [2023-11-06 21:53:47,370 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 43 selfloop transitions, 13 changer transitions 33/93 dead transitions. [2023-11-06 21:53:47,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 93 transitions, 838 flow [2023-11-06 21:53:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 801 transitions. [2023-11-06 21:53:47,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4070121951219512 [2023-11-06 21:53:47,379 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 801 transitions. [2023-11-06 21:53:47,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 801 transitions. [2023-11-06 21:53:47,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:47,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 801 transitions. [2023-11-06 21:53:47,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 100.125) internal successors, (801), 8 states have internal predecessors, (801), 0 states have call successors, (0), 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 21:53:47,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:47,390 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:47,390 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 413 flow. Second operand 8 states and 801 transitions. [2023-11-06 21:53:47,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 93 transitions, 838 flow [2023-11-06 21:53:47,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 93 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:53:47,403 INFO L231 Difference]: Finished difference. Result has 69 places, 54 transitions, 471 flow [2023-11-06 21:53:47,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=471, PETRI_PLACES=69, PETRI_TRANSITIONS=54} [2023-11-06 21:53:47,406 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 25 predicate places. [2023-11-06 21:53:47,407 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 54 transitions, 471 flow [2023-11-06 21:53:47,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:47,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:47,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:47,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:53:47,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:47,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash -695572946, now seen corresponding path program 2 times [2023-11-06 21:53:47,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:47,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027935474] [2023-11-06 21:53:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:47,929 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 21:53:47,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:47,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027935474] [2023-11-06 21:53:47,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027935474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:47,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:47,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:47,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524989463] [2023-11-06 21:53:47,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:47,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:47,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:47,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:48,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 246 [2023-11-06 21:53:48,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 54 transitions, 471 flow. Second operand has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:48,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:48,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 246 [2023-11-06 21:53:48,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:49,014 INFO L124 PetriNetUnfolderBase]: 1213/2003 cut-off events. [2023-11-06 21:53:49,015 INFO L125 PetriNetUnfolderBase]: For 4252/4253 co-relation queries the response was YES. [2023-11-06 21:53:49,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6127 conditions, 2003 events. 1213/2003 cut-off events. For 4252/4253 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 10528 event pairs, 612 based on Foata normal form. 36/1968 useless extension candidates. Maximal degree in co-relation 6106. Up to 1157 conditions per place. [2023-11-06 21:53:49,034 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 42 selfloop transitions, 7 changer transitions 38/93 dead transitions. [2023-11-06 21:53:49,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 93 transitions, 938 flow [2023-11-06 21:53:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:49,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 807 transitions. [2023-11-06 21:53:49,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4100609756097561 [2023-11-06 21:53:49,039 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 807 transitions. [2023-11-06 21:53:49,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 807 transitions. [2023-11-06 21:53:49,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:49,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 807 transitions. [2023-11-06 21:53:49,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 100.875) internal successors, (807), 8 states have internal predecessors, (807), 0 states have call successors, (0), 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 21:53:49,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:49,049 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:49,049 INFO L175 Difference]: Start difference. First operand has 69 places, 54 transitions, 471 flow. Second operand 8 states and 807 transitions. [2023-11-06 21:53:49,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 93 transitions, 938 flow [2023-11-06 21:53:49,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 93 transitions, 882 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-11-06 21:53:49,066 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 487 flow [2023-11-06 21:53:49,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=487, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2023-11-06 21:53:49,068 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 31 predicate places. [2023-11-06 21:53:49,068 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 487 flow [2023-11-06 21:53:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:49,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:49,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:49,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:53:49,070 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:49,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2117511556, now seen corresponding path program 3 times [2023-11-06 21:53:49,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:49,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339916066] [2023-11-06 21:53:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:49,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:49,662 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 21:53:49,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:49,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339916066] [2023-11-06 21:53:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339916066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:49,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530412545] [2023-11-06 21:53:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:49,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:49,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:50,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 246 [2023-11-06 21:53:50,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 487 flow. Second operand has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:50,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:50,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 246 [2023-11-06 21:53:50,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:50,598 INFO L124 PetriNetUnfolderBase]: 1077/1788 cut-off events. [2023-11-06 21:53:50,598 INFO L125 PetriNetUnfolderBase]: For 3518/3531 co-relation queries the response was YES. [2023-11-06 21:53:50,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5449 conditions, 1788 events. 1077/1788 cut-off events. For 3518/3531 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9465 event pairs, 592 based on Foata normal form. 36/1756 useless extension candidates. Maximal degree in co-relation 5424. Up to 975 conditions per place. [2023-11-06 21:53:50,614 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 36 selfloop transitions, 10 changer transitions 35/87 dead transitions. [2023-11-06 21:53:50,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 87 transitions, 882 flow [2023-11-06 21:53:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 801 transitions. [2023-11-06 21:53:50,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4070121951219512 [2023-11-06 21:53:50,625 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 801 transitions. [2023-11-06 21:53:50,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 801 transitions. [2023-11-06 21:53:50,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:50,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 801 transitions. [2023-11-06 21:53:50,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 100.125) internal successors, (801), 8 states have internal predecessors, (801), 0 states have call successors, (0), 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 21:53:50,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:50,639 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:50,639 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 487 flow. Second operand 8 states and 801 transitions. [2023-11-06 21:53:50,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 87 transitions, 882 flow [2023-11-06 21:53:50,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 87 transitions, 826 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-11-06 21:53:50,655 INFO L231 Difference]: Finished difference. Result has 78 places, 50 transitions, 456 flow [2023-11-06 21:53:50,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=456, PETRI_PLACES=78, PETRI_TRANSITIONS=50} [2023-11-06 21:53:50,656 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 34 predicate places. [2023-11-06 21:53:50,656 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 50 transitions, 456 flow [2023-11-06 21:53:50,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:50,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:50,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:50,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:53:50,658 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:50,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash -184409174, now seen corresponding path program 4 times [2023-11-06 21:53:50,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:50,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265450377] [2023-11-06 21:53:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:50,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:51,148 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 21:53:51,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:51,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265450377] [2023-11-06 21:53:51,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265450377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:51,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:51,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:51,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929092438] [2023-11-06 21:53:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:51,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:51,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:51,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 246 [2023-11-06 21:53:51,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 50 transitions, 456 flow. Second operand has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 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 21:53:51,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:51,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 246 [2023-11-06 21:53:51,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:51,960 INFO L124 PetriNetUnfolderBase]: 1205/1986 cut-off events. [2023-11-06 21:53:51,961 INFO L125 PetriNetUnfolderBase]: For 3981/3986 co-relation queries the response was YES. [2023-11-06 21:53:51,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6013 conditions, 1986 events. 1205/1986 cut-off events. For 3981/3986 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10130 event pairs, 892 based on Foata normal form. 48/1975 useless extension candidates. Maximal degree in co-relation 5987. Up to 1031 conditions per place. [2023-11-06 21:53:51,986 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 41 selfloop transitions, 8 changer transitions 24/81 dead transitions. [2023-11-06 21:53:51,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 850 flow [2023-11-06 21:53:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:53:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:53:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2023-11-06 21:53:51,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186991869918699 [2023-11-06 21:53:51,991 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 618 transitions. [2023-11-06 21:53:51,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 618 transitions. [2023-11-06 21:53:51,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:51,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 618 transitions. [2023-11-06 21:53:51,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:53:51,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:52,000 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 246.0) internal successors, (1722), 7 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 21:53:52,000 INFO L175 Difference]: Start difference. First operand has 78 places, 50 transitions, 456 flow. Second operand 6 states and 618 transitions. [2023-11-06 21:53:52,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 850 flow [2023-11-06 21:53:52,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 781 flow, removed 26 selfloop flow, removed 6 redundant places. [2023-11-06 21:53:52,018 INFO L231 Difference]: Finished difference. Result has 77 places, 46 transitions, 429 flow [2023-11-06 21:53:52,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=429, PETRI_PLACES=77, PETRI_TRANSITIONS=46} [2023-11-06 21:53:52,020 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 33 predicate places. [2023-11-06 21:53:52,020 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 46 transitions, 429 flow [2023-11-06 21:53:52,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 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 21:53:52,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:52,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:52,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:53:52,021 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:52,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1311117700, now seen corresponding path program 5 times [2023-11-06 21:53:52,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:52,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343424609] [2023-11-06 21:53:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:52,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:52,538 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 21:53:52,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:52,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343424609] [2023-11-06 21:53:52,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343424609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:52,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:52,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:52,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561027058] [2023-11-06 21:53:52,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:52,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:52,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:52,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:52,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 246 [2023-11-06 21:53:52,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 46 transitions, 429 flow. Second operand has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:52,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:52,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 246 [2023-11-06 21:53:52,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:53,232 INFO L124 PetriNetUnfolderBase]: 717/1181 cut-off events. [2023-11-06 21:53:53,233 INFO L125 PetriNetUnfolderBase]: For 2340/2349 co-relation queries the response was YES. [2023-11-06 21:53:53,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 1181 events. 717/1181 cut-off events. For 2340/2349 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5687 event pairs, 355 based on Foata normal form. 25/1169 useless extension candidates. Maximal degree in co-relation 3684. Up to 592 conditions per place. [2023-11-06 21:53:53,242 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 38 selfloop transitions, 9 changer transitions 19/72 dead transitions. [2023-11-06 21:53:53,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 72 transitions, 662 flow [2023-11-06 21:53:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 792 transitions. [2023-11-06 21:53:53,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2023-11-06 21:53:53,247 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 792 transitions. [2023-11-06 21:53:53,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 792 transitions. [2023-11-06 21:53:53,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:53,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 792 transitions. [2023-11-06 21:53:53,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 0 states have call successors, (0), 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 21:53:53,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:53,257 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:53,258 INFO L175 Difference]: Start difference. First operand has 77 places, 46 transitions, 429 flow. Second operand 8 states and 792 transitions. [2023-11-06 21:53:53,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 72 transitions, 662 flow [2023-11-06 21:53:53,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 72 transitions, 598 flow, removed 11 selfloop flow, removed 13 redundant places. [2023-11-06 21:53:53,267 INFO L231 Difference]: Finished difference. Result has 74 places, 45 transitions, 394 flow [2023-11-06 21:53:53,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=394, PETRI_PLACES=74, PETRI_TRANSITIONS=45} [2023-11-06 21:53:53,268 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 30 predicate places. [2023-11-06 21:53:53,268 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 45 transitions, 394 flow [2023-11-06 21:53:53,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:53,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:53,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:53,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 21:53:53,269 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:53,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash -87949690, now seen corresponding path program 1 times [2023-11-06 21:53:53,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:53,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053933199] [2023-11-06 21:53:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:53,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:53,778 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 21:53:53,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:53,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053933199] [2023-11-06 21:53:53,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053933199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:53,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:53,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:53,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442293930] [2023-11-06 21:53:53,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:53,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:53,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:54,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 246 [2023-11-06 21:53:54,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 45 transitions, 394 flow. Second operand has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:54,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:54,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 246 [2023-11-06 21:53:54,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:54,460 INFO L124 PetriNetUnfolderBase]: 512/887 cut-off events. [2023-11-06 21:53:54,461 INFO L125 PetriNetUnfolderBase]: For 1802/1804 co-relation queries the response was YES. [2023-11-06 21:53:54,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2654 conditions, 887 events. 512/887 cut-off events. For 1802/1804 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4014 event pairs, 125 based on Foata normal form. 24/894 useless extension candidates. Maximal degree in co-relation 2630. Up to 341 conditions per place. [2023-11-06 21:53:54,471 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 36 selfloop transitions, 15 changer transitions 10/67 dead transitions. [2023-11-06 21:53:54,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 67 transitions, 589 flow [2023-11-06 21:53:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 791 transitions. [2023-11-06 21:53:54,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4019308943089431 [2023-11-06 21:53:54,475 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 791 transitions. [2023-11-06 21:53:54,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 791 transitions. [2023-11-06 21:53:54,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:54,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 791 transitions. [2023-11-06 21:53:54,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 98.875) internal successors, (791), 8 states have internal predecessors, (791), 0 states have call successors, (0), 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 21:53:54,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:54,484 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:54,484 INFO L175 Difference]: Start difference. First operand has 74 places, 45 transitions, 394 flow. Second operand 8 states and 791 transitions. [2023-11-06 21:53:54,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 67 transitions, 589 flow [2023-11-06 21:53:54,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 547 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-11-06 21:53:54,492 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 406 flow [2023-11-06 21:53:54,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=406, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2023-11-06 21:53:54,493 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 30 predicate places. [2023-11-06 21:53:54,493 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 406 flow [2023-11-06 21:53:54,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:54,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:54,494 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 21:53:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 21:53:54,495 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:54,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash -671307226, now seen corresponding path program 1 times [2023-11-06 21:53:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:54,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463479852] [2023-11-06 21:53:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:55,076 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 21:53:55,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:55,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463479852] [2023-11-06 21:53:55,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463479852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:55,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:55,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637839509] [2023-11-06 21:53:55,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:55,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:55,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:55,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:55,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:55,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 246 [2023-11-06 21:53:55,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 406 flow. Second operand has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:55,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:55,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 246 [2023-11-06 21:53:55,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:55,849 INFO L124 PetriNetUnfolderBase]: 842/1396 cut-off events. [2023-11-06 21:53:55,849 INFO L125 PetriNetUnfolderBase]: For 2834/2843 co-relation queries the response was YES. [2023-11-06 21:53:55,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4217 conditions, 1396 events. 842/1396 cut-off events. For 2834/2843 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6535 event pairs, 546 based on Foata normal form. 24/1387 useless extension candidates. Maximal degree in co-relation 4194. Up to 764 conditions per place. [2023-11-06 21:53:55,859 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 29 selfloop transitions, 3 changer transitions 34/72 dead transitions. [2023-11-06 21:53:55,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 72 transitions, 713 flow [2023-11-06 21:53:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:53:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:53:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 703 transitions. [2023-11-06 21:53:55,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40824622531939603 [2023-11-06 21:53:55,863 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 703 transitions. [2023-11-06 21:53:55,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 703 transitions. [2023-11-06 21:53:55,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:55,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 703 transitions. [2023-11-06 21:53:55,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 0 states have call successors, (0), 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 21:53:55,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 246.0) internal successors, (1968), 8 states have internal predecessors, (1968), 0 states have call successors, (0), 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 21:53:55,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 246.0) internal successors, (1968), 8 states have internal predecessors, (1968), 0 states have call successors, (0), 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 21:53:55,873 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 406 flow. Second operand 7 states and 703 transitions. [2023-11-06 21:53:55,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 72 transitions, 713 flow [2023-11-06 21:53:55,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 72 transitions, 667 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-06 21:53:55,883 INFO L231 Difference]: Finished difference. Result has 75 places, 38 transitions, 313 flow [2023-11-06 21:53:55,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=313, PETRI_PLACES=75, PETRI_TRANSITIONS=38} [2023-11-06 21:53:55,884 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 31 predicate places. [2023-11-06 21:53:55,884 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 38 transitions, 313 flow [2023-11-06 21:53:55,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:55,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:55,885 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 21:53:55,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 21:53:55,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:55,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash -980244582, now seen corresponding path program 2 times [2023-11-06 21:53:55,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:55,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935072104] [2023-11-06 21:53:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:55,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:56,362 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 21:53:56,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:56,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935072104] [2023-11-06 21:53:56,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935072104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:56,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:56,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846830665] [2023-11-06 21:53:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:56,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:56,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:56,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 246 [2023-11-06 21:53:56,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 38 transitions, 313 flow. Second operand has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:56,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:56,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 246 [2023-11-06 21:53:56,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:57,057 INFO L124 PetriNetUnfolderBase]: 773/1254 cut-off events. [2023-11-06 21:53:57,058 INFO L125 PetriNetUnfolderBase]: For 2285/2292 co-relation queries the response was YES. [2023-11-06 21:53:57,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3685 conditions, 1254 events. 773/1254 cut-off events. For 2285/2292 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5779 event pairs, 564 based on Foata normal form. 24/1242 useless extension candidates. Maximal degree in co-relation 3662. Up to 660 conditions per place. [2023-11-06 21:53:57,064 INFO L140 encePairwiseOnDemand]: 239/246 looper letters, 16 selfloop transitions, 4 changer transitions 30/53 dead transitions. [2023-11-06 21:53:57,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 53 transitions, 464 flow [2023-11-06 21:53:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:53:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:53:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 698 transitions. [2023-11-06 21:53:57,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40534262485482 [2023-11-06 21:53:57,068 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 698 transitions. [2023-11-06 21:53:57,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 698 transitions. [2023-11-06 21:53:57,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:57,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 698 transitions. [2023-11-06 21:53:57,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.71428571428571) internal successors, (698), 7 states have internal predecessors, (698), 0 states have call successors, (0), 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 21:53:57,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 246.0) internal successors, (1968), 8 states have internal predecessors, (1968), 0 states have call successors, (0), 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 21:53:57,076 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 246.0) internal successors, (1968), 8 states have internal predecessors, (1968), 0 states have call successors, (0), 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 21:53:57,076 INFO L175 Difference]: Start difference. First operand has 75 places, 38 transitions, 313 flow. Second operand 7 states and 698 transitions. [2023-11-06 21:53:57,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 53 transitions, 464 flow [2023-11-06 21:53:57,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 53 transitions, 420 flow, removed 9 selfloop flow, removed 14 redundant places. [2023-11-06 21:53:57,082 INFO L231 Difference]: Finished difference. Result has 65 places, 23 transitions, 140 flow [2023-11-06 21:53:57,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=65, PETRI_TRANSITIONS=23} [2023-11-06 21:53:57,083 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2023-11-06 21:53:57,083 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 23 transitions, 140 flow [2023-11-06 21:53:57,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 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 21:53:57,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:53:57,084 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 21:53:57,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 21:53:57,084 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-06 21:53:57,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash -167567410, now seen corresponding path program 3 times [2023-11-06 21:53:57,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:57,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147760687] [2023-11-06 21:53:57,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:57,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:57,586 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 21:53:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:57,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147760687] [2023-11-06 21:53:57,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147760687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:57,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:57,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:53:57,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074686446] [2023-11-06 21:53:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:57,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:53:57,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:57,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:53:57,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:53:57,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 246 [2023-11-06 21:53:57,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 23 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:57,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:53:57,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 246 [2023-11-06 21:53:57,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:53:58,147 INFO L124 PetriNetUnfolderBase]: 154/262 cut-off events. [2023-11-06 21:53:58,147 INFO L125 PetriNetUnfolderBase]: For 542/542 co-relation queries the response was YES. [2023-11-06 21:53:58,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 262 events. 154/262 cut-off events. For 542/542 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 802 event pairs, 54 based on Foata normal form. 24/270 useless extension candidates. Maximal degree in co-relation 674. Up to 148 conditions per place. [2023-11-06 21:53:58,149 INFO L140 encePairwiseOnDemand]: 238/246 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-11-06 21:53:58,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 27 transitions, 178 flow [2023-11-06 21:53:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:53:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 21:53:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 764 transitions. [2023-11-06 21:53:58,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3882113821138211 [2023-11-06 21:53:58,156 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 764 transitions. [2023-11-06 21:53:58,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 764 transitions. [2023-11-06 21:53:58,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:53:58,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 764 transitions. [2023-11-06 21:53:58,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 0 states have call successors, (0), 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 21:53:58,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:58,168 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 246.0) internal successors, (2214), 9 states have internal predecessors, (2214), 0 states have call successors, (0), 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 21:53:58,169 INFO L175 Difference]: Start difference. First operand has 65 places, 23 transitions, 140 flow. Second operand 8 states and 764 transitions. [2023-11-06 21:53:58,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 27 transitions, 178 flow [2023-11-06 21:53:58,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 27 transitions, 132 flow, removed 0 selfloop flow, removed 23 redundant places. [2023-11-06 21:53:58,171 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-11-06 21:53:58,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-11-06 21:53:58,171 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-11-06 21:53:58,172 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-11-06 21:53:58,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 21:53:58,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2023-11-06 21:53:58,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2023-11-06 21:53:58,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2023-11-06 21:53:58,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2023-11-06 21:53:58,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2023-11-06 21:53:58,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2023-11-06 21:53:58,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2023-11-06 21:53:58,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2023-11-06 21:53:58,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 14 remaining) [2023-11-06 21:53:58,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (4 of 14 remaining) [2023-11-06 21:53:58,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-11-06 21:53:58,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 14 remaining) [2023-11-06 21:53:58,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 14 remaining) [2023-11-06 21:53:58,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 14 remaining) [2023-11-06 21:53:58,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 21:53:58,185 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:58,190 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:53:58,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:58,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:58 BasicIcfg [2023-11-06 21:53:58,194 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:58,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:58,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:58,195 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:58,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33" (3/4) ... [2023-11-06 21:53:58,199 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:53:58,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:53:58,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:53:58,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 21:53:58,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 21:53:58,213 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 21:53:58,213 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:53:58,214 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:53:58,214 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:53:58,282 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:53:58,283 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:53:58,283 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:58,284 INFO L158 Benchmark]: Toolchain (without parser) took 26378.96ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 113.5MB in the beginning and 261.7MB in the end (delta: -148.3MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,284 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:58,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.75ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 93.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.31ms. Allocated memory is still 159.4MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,286 INFO L158 Benchmark]: Boogie Preprocessor took 67.97ms. Allocated memory is still 159.4MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,286 INFO L158 Benchmark]: RCFGBuilder took 650.82ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 122.3MB in the end (delta: -33.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,286 INFO L158 Benchmark]: TraceAbstraction took 24826.23ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 121.6MB in the beginning and 264.9MB in the end (delta: -143.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,287 INFO L158 Benchmark]: Witness Printer took 88.65ms. Allocated memory is still 337.6MB. Free memory was 264.9MB in the beginning and 261.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:53:58,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.75ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 93.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.31ms. Allocated memory is still 159.4MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.97ms. Allocated memory is still 159.4MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.82ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 122.3MB in the end (delta: -33.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 24826.23ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 121.6MB in the beginning and 264.9MB in the end (delta: -143.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 88.65ms. Allocated memory is still 337.6MB. Free memory was 264.9MB in the beginning and 261.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 125 PlacesBefore, 44 PlacesAfterwards, 115 TransitionsBefore, 32 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 122 TotalNumberOfCompositions, 5625 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2884, independent: 2756, independent conditional: 0, independent unconditional: 2756, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1532, independent: 1505, independent conditional: 0, independent unconditional: 1505, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2884, independent: 1251, independent conditional: 0, independent unconditional: 1251, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 1532, unknown conditional: 0, unknown unconditional: 1532] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 798]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 154 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 24.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2071 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1452 mSDsluCounter, 668 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 512 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7232 IncrementalHoareTripleChecker+Invalid, 7395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 156 mSDtfsCounter, 7232 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=487occurred in iteration=9, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 6933 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:53:58,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693edd5f-851c-4b04-9e6e-248481d34cb8/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE