./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:00,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:00,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:17:00,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:00,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:00,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:00,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:00,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:00,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:17:00,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:17:00,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:00,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:00,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:00,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:00,603 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:00,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:00,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:00,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:17:00,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:00,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:00,605 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:17:00,606 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:17:00,606 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:17:00,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:00,607 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:17:00,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:00,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:17:00,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:00,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:00,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:00,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:00,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:17:00,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:00,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:00,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:00,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:00,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:17:00,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:17:00,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:00,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:00,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:00,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:00,617 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_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d [2024-10-31 22:17:00,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:00,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:00,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:00,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:00,966 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:00,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:17:03,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:03,403 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:03,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:17:03,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/data/8bbe0f846/2bc299b9118746c99f3ef11a790d45fc/FLAG3ad983a9f [2024-10-31 22:17:03,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/data/8bbe0f846/2bc299b9118746c99f3ef11a790d45fc [2024-10-31 22:17:03,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:03,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:03,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:03,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:03,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:03,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:03" (1/1) ... [2024-10-31 22:17:03,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364b388c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:03, skipping insertion in model container [2024-10-31 22:17:03,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:03" (1/1) ... [2024-10-31 22:17:03,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:04,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:04,384 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:04,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:04,540 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:04,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04 WrapperNode [2024-10-31 22:17:04,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:04,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:04,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:04,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:04,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,626 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 131 [2024-10-31 22:17:04,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:04,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:04,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:04,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:04,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,678 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:17:04,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:04,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:04,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:04,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:04,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (1/1) ... [2024-10-31 22:17:04,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:04,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:04,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:04,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd0d1fd3-1add-4709-8b8d-14ca7e069a30/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:17:04,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:17:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:17:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:17:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:17:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:17:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:17:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:17:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:17:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:17:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:17:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:04,858 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:17:05,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:05,050 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:05,481 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:17:05,481 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:05,731 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:05,732 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:17:05,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:05 BoogieIcfgContainer [2024-10-31 22:17:05,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:05,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:05,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:05,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:05,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:03" (1/3) ... [2024-10-31 22:17:05,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b18fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:05, skipping insertion in model container [2024-10-31 22:17:05,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:04" (2/3) ... [2024-10-31 22:17:05,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b18fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:05, skipping insertion in model container [2024-10-31 22:17:05,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:05" (3/3) ... [2024-10-31 22:17:05,747 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:17:05,768 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:05,768 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-31 22:17:05,768 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:17:05,846 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:17:05,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-31 22:17:05,942 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-31 22:17:05,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:05,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-31 22:17:05,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-31 22:17:05,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-31 22:17:05,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:05,983 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71eeba0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:05,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:17:05,990 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:17:05,990 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:17:05,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:05,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:05,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:17:05,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:05,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash 12923227, now seen corresponding path program 1 times [2024-10-31 22:17:06,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977586341] [2024-10-31 22:17:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:06,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:06,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977586341] [2024-10-31 22:17:06,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977586341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:06,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:06,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:17:06,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693461033] [2024-10-31 22:17:06,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:06,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:06,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:06,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-31 22:17:06,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:06,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-31 22:17:06,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:08,290 INFO L124 PetriNetUnfolderBase]: 3311/5215 cut-off events. [2024-10-31 22:17:08,291 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:17:08,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9895 conditions, 5215 events. 3311/5215 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33415 event pairs, 2177 based on Foata normal form. 288/5455 useless extension candidates. Maximal degree in co-relation 9883. Up to 3661 conditions per place. [2024-10-31 22:17:08,337 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-31 22:17:08,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-31 22:17:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-31 22:17:08,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-31 22:17:08,353 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-31 22:17:08,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-31 22:17:08,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:17:08,362 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-31 22:17:08,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-31 22:17:08,370 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-31 22:17:08,372 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-31 22:17:08,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:08,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:08,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:08,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:08,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:08,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:08,374 INFO L85 PathProgramCache]: Analyzing trace with hash 610534324, now seen corresponding path program 1 times [2024-10-31 22:17:08,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:08,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777020145] [2024-10-31 22:17:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:08,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:08,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:08,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777020145] [2024-10-31 22:17:08,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777020145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:08,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:08,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:17:08,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102879531] [2024-10-31 22:17:08,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:08,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:08,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:08,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:08,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:08,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-31 22:17:08,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:08,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:08,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-31 22:17:08,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:09,663 INFO L124 PetriNetUnfolderBase]: 2903/4947 cut-off events. [2024-10-31 22:17:09,664 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-31 22:17:09,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9351 conditions, 4947 events. 2903/4947 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 35215 event pairs, 2903 based on Foata normal form. 144/4916 useless extension candidates. Maximal degree in co-relation 9341. Up to 4016 conditions per place. [2024-10-31 22:17:09,704 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-31 22:17:09,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-31 22:17:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-31 22:17:09,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-31 22:17:09,707 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-31 22:17:09,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-31 22:17:09,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:09,711 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-31 22:17:09,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-31 22:17:09,712 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-31 22:17:09,712 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-31 22:17:09,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:09,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:09,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:09,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:09,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash 610535703, now seen corresponding path program 1 times [2024-10-31 22:17:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904906792] [2024-10-31 22:17:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:09,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:09,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904906792] [2024-10-31 22:17:09,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904906792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:09,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:09,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:17:09,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342344774] [2024-10-31 22:17:09,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:09,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:17:10,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:17:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:17:10,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-31 22:17:10,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:10,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:10,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-31 22:17:10,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:12,503 INFO L124 PetriNetUnfolderBase]: 8875/13639 cut-off events. [2024-10-31 22:17:12,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:17:12,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25961 conditions, 13639 events. 8875/13639 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 96399 event pairs, 1033 based on Foata normal form. 400/13818 useless extension candidates. Maximal degree in co-relation 25955. Up to 7301 conditions per place. [2024-10-31 22:17:12,625 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 53 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2024-10-31 22:17:12,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 288 flow [2024-10-31 22:17:12,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:17:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:17:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-31 22:17:12,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-31 22:17:12,628 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 146 transitions. [2024-10-31 22:17:12,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 288 flow [2024-10-31 22:17:12,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:17:12,631 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-10-31 22:17:12,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-31 22:17:12,632 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-10-31 22:17:12,633 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-10-31 22:17:12,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:12,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:12,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:12,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:12,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:12,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:12,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1445226634, now seen corresponding path program 1 times [2024-10-31 22:17:12,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:12,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352612229] [2024-10-31 22:17:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:12,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:13,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:13,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352612229] [2024-10-31 22:17:13,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352612229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:13,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:13,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:17:13,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079403467] [2024-10-31 22:17:13,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:13,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:13,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-31 22:17:13,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:13,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:13,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-31 22:17:13,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:15,360 INFO L124 PetriNetUnfolderBase]: 6751/10399 cut-off events. [2024-10-31 22:17:15,361 INFO L125 PetriNetUnfolderBase]: For 2428/2428 co-relation queries the response was YES. [2024-10-31 22:17:15,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23256 conditions, 10399 events. 6751/10399 cut-off events. For 2428/2428 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 69427 event pairs, 451 based on Foata normal form. 364/10577 useless extension candidates. Maximal degree in co-relation 23247. Up to 4601 conditions per place. [2024-10-31 22:17:15,459 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 68 selfloop transitions, 10 changer transitions 1/95 dead transitions. [2024-10-31 22:17:15,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 95 transitions, 420 flow [2024-10-31 22:17:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:17:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:17:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2024-10-31 22:17:15,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6763636363636364 [2024-10-31 22:17:15,467 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 186 transitions. [2024-10-31 22:17:15,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 95 transitions, 420 flow [2024-10-31 22:17:15,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 95 transitions, 409 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:15,477 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-10-31 22:17:15,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-10-31 22:17:15,482 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-10-31 22:17:15,482 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-10-31 22:17:15,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:15,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:15,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:15,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:17:15,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:15,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:15,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1494696936, now seen corresponding path program 1 times [2024-10-31 22:17:15,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:15,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801812435] [2024-10-31 22:17:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:15,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:15,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:15,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801812435] [2024-10-31 22:17:15,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801812435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:15,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:15,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:15,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331418310] [2024-10-31 22:17:15,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:15,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:15,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:15,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:15,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-31 22:17:15,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:15,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:15,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-31 22:17:15,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:17,160 INFO L124 PetriNetUnfolderBase]: 4259/6455 cut-off events. [2024-10-31 22:17:17,160 INFO L125 PetriNetUnfolderBase]: For 4750/4750 co-relation queries the response was YES. [2024-10-31 22:17:17,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16298 conditions, 6455 events. 4259/6455 cut-off events. For 4750/4750 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 37603 event pairs, 289 based on Foata normal form. 244/6535 useless extension candidates. Maximal degree in co-relation 16287. Up to 1788 conditions per place. [2024-10-31 22:17:17,215 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 81 selfloop transitions, 14 changer transitions 1/112 dead transitions. [2024-10-31 22:17:17,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 112 transitions, 551 flow [2024-10-31 22:17:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:17:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 224 transitions. [2024-10-31 22:17:17,217 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2024-10-31 22:17:17,217 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 224 transitions. [2024-10-31 22:17:17,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 112 transitions, 551 flow [2024-10-31 22:17:17,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 112 transitions, 521 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:17:17,256 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-10-31 22:17:17,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-10-31 22:17:17,259 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-10-31 22:17:17,260 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-10-31 22:17:17,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:17,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:17,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:17,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:17:17,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:17,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1947283072, now seen corresponding path program 1 times [2024-10-31 22:17:17,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:17,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469281269] [2024-10-31 22:17:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:17,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:17,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469281269] [2024-10-31 22:17:17,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469281269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:17,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:17,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:17:17,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899722999] [2024-10-31 22:17:17,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:17,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:17:17,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:17,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:17:17,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:17:17,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-31 22:17:17,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:17,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:17,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-31 22:17:17,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:18,750 INFO L124 PetriNetUnfolderBase]: 2895/4223 cut-off events. [2024-10-31 22:17:18,750 INFO L125 PetriNetUnfolderBase]: For 5022/5022 co-relation queries the response was YES. [2024-10-31 22:17:18,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11699 conditions, 4223 events. 2895/4223 cut-off events. For 5022/5022 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 21898 event pairs, 231 based on Foata normal form. 96/4159 useless extension candidates. Maximal degree in co-relation 11687. Up to 1316 conditions per place. [2024-10-31 22:17:18,784 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 72 selfloop transitions, 18 changer transitions 1/107 dead transitions. [2024-10-31 22:17:18,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 107 transitions, 541 flow [2024-10-31 22:17:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:17:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:17:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-10-31 22:17:18,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6233766233766234 [2024-10-31 22:17:18,787 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 240 transitions. [2024-10-31 22:17:18,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 107 transitions, 541 flow [2024-10-31 22:17:18,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 495 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-31 22:17:18,835 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-10-31 22:17:18,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-10-31 22:17:18,836 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-10-31 22:17:18,836 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-10-31 22:17:18,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:18,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:18,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:18,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:17:18,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:18,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:18,837 INFO L85 PathProgramCache]: Analyzing trace with hash -960845547, now seen corresponding path program 1 times [2024-10-31 22:17:18,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:18,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942636945] [2024-10-31 22:17:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:18,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:22,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942636945] [2024-10-31 22:17:22,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942636945] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:22,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:22,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:17:22,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059984936] [2024-10-31 22:17:22,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:22,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:17:22,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:22,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:17:22,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:17:22,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-31 22:17:22,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:22,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:22,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-31 22:17:22,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:24,175 INFO L124 PetriNetUnfolderBase]: 3348/5515 cut-off events. [2024-10-31 22:17:24,175 INFO L125 PetriNetUnfolderBase]: For 3279/3523 co-relation queries the response was YES. [2024-10-31 22:17:24,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13213 conditions, 5515 events. 3348/5515 cut-off events. For 3279/3523 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 36723 event pairs, 879 based on Foata normal form. 16/5154 useless extension candidates. Maximal degree in co-relation 13200. Up to 1668 conditions per place. [2024-10-31 22:17:24,243 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 71 selfloop transitions, 8 changer transitions 12/123 dead transitions. [2024-10-31 22:17:24,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 123 transitions, 603 flow [2024-10-31 22:17:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:17:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:17:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 292 transitions. [2024-10-31 22:17:24,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-31 22:17:24,246 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 8 states and 292 transitions. [2024-10-31 22:17:24,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 123 transitions, 603 flow [2024-10-31 22:17:24,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 123 transitions, 487 flow, removed 27 selfloop flow, removed 10 redundant places. [2024-10-31 22:17:24,305 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 210 flow [2024-10-31 22:17:24,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=210, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2024-10-31 22:17:24,306 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2024-10-31 22:17:24,306 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 210 flow [2024-10-31 22:17:24,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:24,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:24,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:24,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:17:24,307 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:24,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:24,308 INFO L85 PathProgramCache]: Analyzing trace with hash 544960051, now seen corresponding path program 2 times [2024-10-31 22:17:24,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:24,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26185256] [2024-10-31 22:17:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:24,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:24,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26185256] [2024-10-31 22:17:24,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26185256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:24,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:24,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:24,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350380860] [2024-10-31 22:17:24,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:24,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:24,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:24,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:24,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:24,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-31 22:17:24,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:24,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:24,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-31 22:17:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:28,732 INFO L124 PetriNetUnfolderBase]: 18885/28548 cut-off events. [2024-10-31 22:17:28,732 INFO L125 PetriNetUnfolderBase]: For 6459/6459 co-relation queries the response was YES. [2024-10-31 22:17:28,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65460 conditions, 28548 events. 18885/28548 cut-off events. For 6459/6459 co-relation queries the response was YES. Maximal size of possible extension queue 1399. Compared 206066 event pairs, 6680 based on Foata normal form. 32/27387 useless extension candidates. Maximal degree in co-relation 65447. Up to 13115 conditions per place. [2024-10-31 22:17:28,921 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 50 selfloop transitions, 10 changer transitions 17/102 dead transitions. [2024-10-31 22:17:28,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 487 flow [2024-10-31 22:17:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:17:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:17:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-10-31 22:17:28,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5672727272727273 [2024-10-31 22:17:28,923 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 210 flow. Second operand 5 states and 156 transitions. [2024-10-31 22:17:28,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 487 flow [2024-10-31 22:17:29,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 102 transitions, 469 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-31 22:17:29,008 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 281 flow [2024-10-31 22:17:29,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2024-10-31 22:17:29,009 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-10-31 22:17:29,009 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 281 flow [2024-10-31 22:17:29,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:29,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:29,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:29,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:17:29,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:17:29,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:29,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1898699755, now seen corresponding path program 3 times [2024-10-31 22:17:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:29,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36755828] [2024-10-31 22:17:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:29,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:29,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36755828] [2024-10-31 22:17:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36755828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:29,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:17:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089155796] [2024-10-31 22:17:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:17:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:17:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:17:29,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-31 22:17:29,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:29,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:29,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-31 22:17:29,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand