./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/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_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/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_aec03099-832b-4dde-a636-a6c333822501/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 798582ee4a09ede0f5c496225fe921dfd53b0dfd5ded797f7106b8b9ef24e798 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:59,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:59,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:01:59,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:59,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:59,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:59,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:59,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:59,812 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:59,813 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:59,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:59,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:59,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:59,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:59,820 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:59,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:59,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:59,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:59,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:59,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:59,837 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:01:59,842 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:01:59,843 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:01:59,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:59,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:01:59,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:59,845 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:59,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:59,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:59,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:59,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:59,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:59,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:59,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:59,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:59,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:59,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:59,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:59,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:59,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:59,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:59,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:59,855 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_aec03099-832b-4dde-a636-a6c333822501/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 798582ee4a09ede0f5c496225fe921dfd53b0dfd5ded797f7106b8b9ef24e798 [2024-10-31 22:02:00,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:00,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:00,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:00,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:00,288 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:00,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i Unable to find full path for "g++" [2024-10-31 22:02:02,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:02,826 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:02,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i [2024-10-31 22:02:02,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/data/aa43a6d83/0ecf85c74d3c4210b221474e5450790e/FLAGe4ff9f697 [2024-10-31 22:02:02,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/data/aa43a6d83/0ecf85c74d3c4210b221474e5450790e [2024-10-31 22:02:02,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:02,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:02,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:02,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:02,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:02,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:02" (1/1) ... [2024-10-31 22:02:02,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114aa2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:02, skipping insertion in model container [2024-10-31 22:02:02,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:02" (1/1) ... [2024-10-31 22:02:02,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:03,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:03,547 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:03,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:03,663 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:03,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03 WrapperNode [2024-10-31 22:02:03,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:03,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:03,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:03,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:03,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,733 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2024-10-31 22:02:03,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:03,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:03,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:03,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:03,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,771 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 22:02:03,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:03,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:03,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:03,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:03,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (1/1) ... [2024-10-31 22:02:03,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:03,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:03,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:03,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec03099-832b-4dde-a636-a6c333822501/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:02:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:02:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:02:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:02:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:02:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:02:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:02:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:02:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:02:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:02:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:02:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:03,886 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 22:02:04,094 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:04,096 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:04,646 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:02:04,647 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:05,005 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:05,006 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:02:05,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:05 BoogieIcfgContainer [2024-10-31 22:02:05,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:05,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:05,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:05,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:05,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:02" (1/3) ... [2024-10-31 22:02:05,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d6b528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:05, skipping insertion in model container [2024-10-31 22:02:05,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:03" (2/3) ... [2024-10-31 22:02:05,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d6b528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:05, skipping insertion in model container [2024-10-31 22:02:05,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:05" (3/3) ... [2024-10-31 22:02:05,025 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_tso.oepc.i [2024-10-31 22:02:05,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:05,048 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-31 22:02:05,048 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:02:05,132 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:02:05,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-31 22:02:05,202 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-31 22:02:05,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:05,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-31 22:02:05,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-31 22:02:05,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-31 22:02:05,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:05,247 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;@40f8ac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:05,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:02:05,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:05,263 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-10-31 22:02:05,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:05,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:05,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:05,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:05,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash -589101247, now seen corresponding path program 1 times [2024-10-31 22:02:05,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:05,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83860464] [2024-10-31 22:02:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:05,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:06,023 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 22:02:06,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:06,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83860464] [2024-10-31 22:02:06,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83860464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:06,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:06,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:02:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418154915] [2024-10-31 22:02:06,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:06,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:06,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:06,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-31 22:02:06,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:02:06,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:06,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-31 22:02:06,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:07,519 INFO L124 PetriNetUnfolderBase]: 2754/4553 cut-off events. [2024-10-31 22:02:07,520 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-31 22:02:07,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8492 conditions, 4553 events. 2754/4553 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 31890 event pairs, 492 based on Foata normal form. 216/4711 useless extension candidates. Maximal degree in co-relation 8480. Up to 3064 conditions per place. [2024-10-31 22:02:07,574 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 39 selfloop transitions, 2 changer transitions 2/63 dead transitions. [2024-10-31 22:02:07,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 230 flow [2024-10-31 22:02:07,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-10-31 22:02:07,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7547169811320755 [2024-10-31 22:02:07,592 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 120 transitions. [2024-10-31 22:02:07,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 230 flow [2024-10-31 22:02:07,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:07,600 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-31 22:02:07,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-31 22:02:07,607 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-31 22:02:07,607 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-31 22:02:07,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:02:07,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:07,608 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 22:02:07,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:07,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:07,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:07,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1317713306, now seen corresponding path program 1 times [2024-10-31 22:02:07,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:07,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620731068] [2024-10-31 22:02:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:07,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:07,737 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 22:02:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620731068] [2024-10-31 22:02:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620731068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:07,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:07,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:02:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440190764] [2024-10-31 22:02:07,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:07,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:07,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:07,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-10-31 22:02:07,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 22:02:07,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:07,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-10-31 22:02:07,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:08,766 INFO L124 PetriNetUnfolderBase]: 2457/4061 cut-off events. [2024-10-31 22:02:08,766 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-10-31 22:02:08,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7833 conditions, 4061 events. 2457/4061 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 27530 event pairs, 2457 based on Foata normal form. 108/4000 useless extension candidates. Maximal degree in co-relation 7823. Up to 3424 conditions per place. [2024-10-31 22:02:08,797 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 22 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-31 22:02:08,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 146 flow [2024-10-31 22:02:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:08,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-10-31 22:02:08,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2024-10-31 22:02:08,800 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 94 transitions. [2024-10-31 22:02:08,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 146 flow [2024-10-31 22:02:08,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:02:08,806 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-31 22:02:08,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-31 22:02:08,808 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-31 22:02:08,810 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-31 22:02:08,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 22:02:08,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:08,811 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 22:02:08,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:08,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:08,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:08,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1317711957, now seen corresponding path program 1 times [2024-10-31 22:02:08,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:08,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768603876] [2024-10-31 22:02:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:09,658 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 22:02:09,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768603876] [2024-10-31 22:02:09,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768603876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:09,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:09,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90734687] [2024-10-31 22:02:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:09,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:09,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:09,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-10-31 22:02:09,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 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 22:02:09,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:09,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-10-31 22:02:09,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:11,381 INFO L124 PetriNetUnfolderBase]: 4352/6805 cut-off events. [2024-10-31 22:02:11,382 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:11,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12984 conditions, 6805 events. 4352/6805 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 48737 event pairs, 875 based on Foata normal form. 0/6646 useless extension candidates. Maximal degree in co-relation 12978. Up to 3913 conditions per place. [2024-10-31 22:02:11,433 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 36 selfloop transitions, 3 changer transitions 48/104 dead transitions. [2024-10-31 22:02:11,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 104 transitions, 398 flow [2024-10-31 22:02:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:02:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:02:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2024-10-31 22:02:11,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-31 22:02:11,441 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 265 transitions. [2024-10-31 22:02:11,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 104 transitions, 398 flow [2024-10-31 22:02:11,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 104 transitions, 397 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:11,447 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 126 flow [2024-10-31 22:02:11,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-10-31 22:02:11,448 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2024-10-31 22:02:11,449 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 126 flow [2024-10-31 22:02:11,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 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 22:02:11,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:11,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:11,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:11,450 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:11,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1260050401, now seen corresponding path program 1 times [2024-10-31 22:02:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:11,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838417942] [2024-10-31 22:02:11,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:11,812 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 22:02:11,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:11,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838417942] [2024-10-31 22:02:11,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838417942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:11,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:11,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920218607] [2024-10-31 22:02:11,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:11,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:11,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:11,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:11,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-31 22:02:11,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 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 22:02:11,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:11,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-31 22:02:11,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:14,060 INFO L124 PetriNetUnfolderBase]: 9378/13675 cut-off events. [2024-10-31 22:02:14,060 INFO L125 PetriNetUnfolderBase]: For 4215/4217 co-relation queries the response was YES. [2024-10-31 22:02:14,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30818 conditions, 13675 events. 9378/13675 cut-off events. For 4215/4217 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 88749 event pairs, 1001 based on Foata normal form. 384/13846 useless extension candidates. Maximal degree in co-relation 30806. Up to 8149 conditions per place. [2024-10-31 22:02:14,166 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 55 selfloop transitions, 6 changer transitions 0/75 dead transitions. [2024-10-31 22:02:14,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 336 flow [2024-10-31 22:02:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:02:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-10-31 22:02:14,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6415094339622641 [2024-10-31 22:02:14,168 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 126 flow. Second operand 4 states and 136 transitions. [2024-10-31 22:02:14,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 336 flow [2024-10-31 22:02:14,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 327 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-31 22:02:14,179 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 165 flow [2024-10-31 22:02:14,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2024-10-31 22:02:14,180 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2024-10-31 22:02:14,181 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 165 flow [2024-10-31 22:02:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 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 22:02:14,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:14,181 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 22:02:14,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:14,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:14,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1376895166, now seen corresponding path program 1 times [2024-10-31 22:02:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608933661] [2024-10-31 22:02:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:14,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:15,031 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 22:02:15,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:15,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608933661] [2024-10-31 22:02:15,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608933661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:15,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:15,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:15,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619909952] [2024-10-31 22:02:15,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:15,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:02:15,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:15,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:02:15,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:02:15,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-10-31 22:02:15,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 165 flow. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 22:02:15,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:15,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-10-31 22:02:15,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:17,329 INFO L124 PetriNetUnfolderBase]: 6436/10364 cut-off events. [2024-10-31 22:02:17,330 INFO L125 PetriNetUnfolderBase]: For 4682/4994 co-relation queries the response was YES. [2024-10-31 22:02:17,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24251 conditions, 10364 events. 6436/10364 cut-off events. For 4682/4994 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 78964 event pairs, 1405 based on Foata normal form. 205/9890 useless extension candidates. Maximal degree in co-relation 24238. Up to 6472 conditions per place. [2024-10-31 22:02:17,412 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 73 selfloop transitions, 15 changer transitions 0/110 dead transitions. [2024-10-31 22:02:17,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 110 transitions, 509 flow [2024-10-31 22:02:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:02:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:02:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2024-10-31 22:02:17,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-31 22:02:17,415 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 165 flow. Second operand 8 states and 265 transitions. [2024-10-31 22:02:17,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 110 transitions, 509 flow [2024-10-31 22:02:17,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 110 transitions, 499 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:17,420 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 260 flow [2024-10-31 22:02:17,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=59, 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=8, PETRI_FLOW=260, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2024-10-31 22:02:17,422 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 9 predicate places. [2024-10-31 22:02:17,422 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 260 flow [2024-10-31 22:02:17,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 0 states have call successors, (0), 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 22:02:17,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:17,423 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 22:02:17,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:17,423 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:17,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:17,427 INFO L85 PathProgramCache]: Analyzing trace with hash 631646020, now seen corresponding path program 1 times [2024-10-31 22:02:17,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:17,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70841248] [2024-10-31 22:02:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:17,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:17,770 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 22:02:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70841248] [2024-10-31 22:02:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70841248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:17,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:17,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:17,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51518560] [2024-10-31 22:02:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:17,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:17,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:17,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-31 22:02:17,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 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 22:02:17,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:17,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-31 22:02:17,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:19,934 INFO L124 PetriNetUnfolderBase]: 8553/12617 cut-off events. [2024-10-31 22:02:19,935 INFO L125 PetriNetUnfolderBase]: For 9883/9993 co-relation queries the response was YES. [2024-10-31 22:02:19,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34974 conditions, 12617 events. 8553/12617 cut-off events. For 9883/9993 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 80372 event pairs, 544 based on Foata normal form. 472/12816 useless extension candidates. Maximal degree in co-relation 34957. Up to 5977 conditions per place. [2024-10-31 22:02:20,048 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 84 selfloop transitions, 10 changer transitions 6/114 dead transitions. [2024-10-31 22:02:20,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 114 transitions, 682 flow [2024-10-31 22:02:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:02:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-10-31 22:02:20,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6566037735849056 [2024-10-31 22:02:20,051 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 260 flow. Second operand 5 states and 174 transitions. [2024-10-31 22:02:20,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 114 transitions, 682 flow [2024-10-31 22:02:20,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 114 transitions, 644 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:20,107 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 276 flow [2024-10-31 22:02:20,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=276, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2024-10-31 22:02:20,109 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2024-10-31 22:02:20,110 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 276 flow [2024-10-31 22:02:20,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 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 22:02:20,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:20,111 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 22:02:20,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:20,111 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:20,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash -355854259, now seen corresponding path program 1 times [2024-10-31 22:02:20,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:20,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393825501] [2024-10-31 22:02:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:20,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:20,556 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 22:02:20,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:20,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393825501] [2024-10-31 22:02:20,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393825501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:20,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:20,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:02:20,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015117054] [2024-10-31 22:02:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:20,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:20,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:20,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-31 22:02:20,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 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 22:02:20,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:20,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-31 22:02:20,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:21,872 INFO L124 PetriNetUnfolderBase]: 6017/8893 cut-off events. [2024-10-31 22:02:21,872 INFO L125 PetriNetUnfolderBase]: For 11079/11181 co-relation queries the response was YES. [2024-10-31 22:02:21,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27209 conditions, 8893 events. 6017/8893 cut-off events. For 11079/11181 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 53477 event pairs, 394 based on Foata normal form. 344/8965 useless extension candidates. Maximal degree in co-relation 27188. Up to 2656 conditions per place. [2024-10-31 22:02:21,948 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 93 selfloop transitions, 14 changer transitions 0/121 dead transitions. [2024-10-31 22:02:21,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 121 transitions, 728 flow [2024-10-31 22:02:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:02:21,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2024-10-31 22:02:21,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.660377358490566 [2024-10-31 22:02:21,950 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 276 flow. Second operand 6 states and 210 transitions. [2024-10-31 22:02:21,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 121 transitions, 728 flow [2024-10-31 22:02:21,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 121 transitions, 706 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:21,961 INFO L231 Difference]: Finished difference. Result has 74 places, 62 transitions, 335 flow [2024-10-31 22:02:21,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=62} [2024-10-31 22:02:21,962 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 14 predicate places. [2024-10-31 22:02:21,962 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 62 transitions, 335 flow [2024-10-31 22:02:21,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 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 22:02:21,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:21,963 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 22:02:21,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:21,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:21,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1305080659, now seen corresponding path program 1 times [2024-10-31 22:02:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127027466] [2024-10-31 22:02:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:22,410 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 22:02:22,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:22,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127027466] [2024-10-31 22:02:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127027466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:22,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303296928] [2024-10-31 22:02:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:22,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:02:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:22,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:02:22,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:02:22,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-31 22:02:22,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 62 transitions, 335 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 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 22:02:22,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:22,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-31 22:02:22,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:23,547 INFO L124 PetriNetUnfolderBase]: 5109/7481 cut-off events. [2024-10-31 22:02:23,548 INFO L125 PetriNetUnfolderBase]: For 15525/15627 co-relation queries the response was YES. [2024-10-31 22:02:23,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24861 conditions, 7481 events. 5109/7481 cut-off events. For 15525/15627 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 44349 event pairs, 394 based on Foata normal form. 196/7405 useless extension candidates. Maximal degree in co-relation 24840. Up to 2656 conditions per place. [2024-10-31 22:02:23,607 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 86 selfloop transitions, 18 changer transitions 0/118 dead transitions. [2024-10-31 22:02:23,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 118 transitions, 730 flow [2024-10-31 22:02:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:02:23,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:02:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2024-10-31 22:02:23,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6091644204851752 [2024-10-31 22:02:23,609 INFO L175 Difference]: Start difference. First operand has 74 places, 62 transitions, 335 flow. Second operand 7 states and 226 transitions. [2024-10-31 22:02:23,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 118 transitions, 730 flow [2024-10-31 22:02:23,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 118 transitions, 673 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-10-31 22:02:23,679 INFO L231 Difference]: Finished difference. Result has 76 places, 63 transitions, 349 flow [2024-10-31 22:02:23,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=349, PETRI_PLACES=76, PETRI_TRANSITIONS=63} [2024-10-31 22:02:23,681 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2024-10-31 22:02:23,682 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 63 transitions, 349 flow [2024-10-31 22:02:23,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 0 states have call successors, (0), 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 22:02:23,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:23,684 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] [2024-10-31 22:02:23,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:23,685 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:23,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:23,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1215573617, now seen corresponding path program 1 times [2024-10-31 22:02:23,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:23,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434785504] [2024-10-31 22:02:23,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:23,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:24,115 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 22:02:24,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:24,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434785504] [2024-10-31 22:02:24,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434785504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:24,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:24,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818769724] [2024-10-31 22:02:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:24,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:24,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:24,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:24,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-31 22:02:24,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 63 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 22:02:24,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:24,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-31 22:02:24,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:25,554 INFO L124 PetriNetUnfolderBase]: 5267/9065 cut-off events. [2024-10-31 22:02:25,554 INFO L125 PetriNetUnfolderBase]: For 17735/21445 co-relation queries the response was YES. [2024-10-31 22:02:25,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26193 conditions, 9065 events. 5267/9065 cut-off events. For 17735/21445 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 69921 event pairs, 1403 based on Foata normal form. 193/8368 useless extension candidates. Maximal degree in co-relation 26173. Up to 3527 conditions per place. [2024-10-31 22:02:25,618 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 43 selfloop transitions, 1 changer transitions 28/105 dead transitions. [2024-10-31 22:02:25,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 629 flow [2024-10-31 22:02:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:25,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:02:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2024-10-31 22:02:25,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5943396226415094 [2024-10-31 22:02:25,621 INFO L175 Difference]: Start difference. First operand has 76 places, 63 transitions, 349 flow. Second operand 6 states and 189 transitions. [2024-10-31 22:02:25,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 629 flow [2024-10-31 22:02:25,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 105 transitions, 582 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:25,900 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 313 flow [2024-10-31 22:02:25,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-10-31 22:02:25,901 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 21 predicate places. [2024-10-31 22:02:25,901 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 313 flow [2024-10-31 22:02:25,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 22:02:25,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:25,902 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] [2024-10-31 22:02:25,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:02:25,902 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:25,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1487766087, now seen corresponding path program 2 times [2024-10-31 22:02:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:25,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102538636] [2024-10-31 22:02:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:25,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:26,483 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 22:02:26,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102538636] [2024-10-31 22:02:26,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102538636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:26,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:26,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:26,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941862688] [2024-10-31 22:02:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:26,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:26,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-31 22:02:26,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 22:02:26,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:26,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-31 22:02:26,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:28,719 INFO L124 PetriNetUnfolderBase]: 5986/10239 cut-off events. [2024-10-31 22:02:28,719 INFO L125 PetriNetUnfolderBase]: For 13892/16057 co-relation queries the response was YES. [2024-10-31 22:02:28,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27539 conditions, 10239 events. 5986/10239 cut-off events. For 13892/16057 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 80695 event pairs, 1644 based on Foata normal form. 241/9321 useless extension candidates. Maximal degree in co-relation 27516. Up to 3669 conditions per place. [2024-10-31 22:02:28,836 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 35 selfloop transitions, 1 changer transitions 34/103 dead transitions. [2024-10-31 22:02:28,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 103 transitions, 594 flow [2024-10-31 22:02:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:02:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 183 transitions. [2024-10-31 22:02:28,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5754716981132075 [2024-10-31 22:02:28,840 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 313 flow. Second operand 6 states and 183 transitions. [2024-10-31 22:02:28,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 103 transitions, 594 flow [2024-10-31 22:02:29,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 583 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:29,136 INFO L231 Difference]: Finished difference. Result has 83 places, 63 transitions, 317 flow [2024-10-31 22:02:29,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=83, PETRI_TRANSITIONS=63} [2024-10-31 22:02:29,136 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2024-10-31 22:02:29,137 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 63 transitions, 317 flow [2024-10-31 22:02:29,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 22:02:29,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:29,137 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] [2024-10-31 22:02:29,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:02:29,137 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:02:29,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:29,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1379918383, now seen corresponding path program 3 times [2024-10-31 22:02:29,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:29,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521386400] [2024-10-31 22:02:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,517 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 22:02:29,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521386400] [2024-10-31 22:02:29,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521386400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:29,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:29,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:02:29,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619701547] [2024-10-31 22:02:29,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:29,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:29,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:29,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:29,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:29,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-31 22:02:29,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 63 transitions, 317 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 22:02:29,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:29,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-31 22:02:29,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand