./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1 --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 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:37:08,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:37:08,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 06:37:08,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:37:08,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:37:08,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:37:08,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:37:08,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:37:08,644 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:37:08,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:37:08,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:37:08,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:37:08,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:37:08,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:37:08,645 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:37:08,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:37:08,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:37:08,647 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:08,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:08,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:08,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:37:08,648 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1 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 -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2024-12-02 06:37:08,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:37:08,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:37:08,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:37:08,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:37:08,881 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:37:08,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-12-02 06:37:11,542 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/data/2a110ac11/fe1753308679425b954e4e36f7920ad8/FLAGc0946688f [2024-12-02 06:37:11,754 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:37:11,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-12-02 06:37:11,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/data/2a110ac11/fe1753308679425b954e4e36f7920ad8/FLAGc0946688f [2024-12-02 06:37:12,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/data/2a110ac11/fe1753308679425b954e4e36f7920ad8 [2024-12-02 06:37:12,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:37:12,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:37:12,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:12,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:37:12,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:37:12,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca97ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12, skipping insertion in model container [2024-12-02 06:37:12,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:37:12,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:12,282 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:37:12,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:12,310 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:37:12,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12 WrapperNode [2024-12-02 06:37:12,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:12,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:12,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:37:12,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:37:12,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,335 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 94 [2024-12-02 06:37:12,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:12,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:37:12,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:37:12,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:37:12,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,343 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,356 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]. [2024-12-02 06:37:12,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,361 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:37:12,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:37:12,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:37:12,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:37:12,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (1/1) ... [2024-12-02 06:37:12,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:12,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:12,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:37:12,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:37:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:37:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 06:37:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 06:37:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 06:37:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 06:37:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 06:37:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 06:37:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-02 06:37:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-02 06:37:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:37:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:37:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:37:12,417 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 06:37:12,500 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:37:12,502 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:37:12,684 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 06:37:12,684 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:37:12,793 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:37:12,793 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:37:12,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:12 BoogieIcfgContainer [2024-12-02 06:37:12,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:37:12,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:37:12,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:37:12,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:37:12,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:37:12" (1/3) ... [2024-12-02 06:37:12,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9afdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:12, skipping insertion in model container [2024-12-02 06:37:12,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:12" (2/3) ... [2024-12-02 06:37:12,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9afdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:12, skipping insertion in model container [2024-12-02 06:37:12,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:12" (3/3) ... [2024-12-02 06:37:12,803 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-12-02 06:37:12,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:37:12,819 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-determinism.wvr.c that has 5 procedures, 39 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2024-12-02 06:37:12,819 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 06:37:12,876 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 06:37:12,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 112 flow [2024-12-02 06:37:12,937 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2024-12-02 06:37:12,939 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 06:37:12,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 38 events. 4/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-12-02 06:37:12,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 112 flow [2024-12-02 06:37:12,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 98 flow [2024-12-02 06:37:12,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:37:12,965 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;@7dd2577e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:37:12,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 06:37:12,985 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:37:12,986 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-12-02 06:37:12,986 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 06:37:12,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:12,987 INFO L206 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] [2024-12-02 06:37:12,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:12,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2024390961, now seen corresponding path program 1 times [2024-12-02 06:37:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:12,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924749787] [2024-12-02 06:37:12,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:13,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:13,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924749787] [2024-12-02 06:37:13,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924749787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:13,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:13,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194475662] [2024-12-02 06:37:13,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:13,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:13,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:13,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:13,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:13,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-12-02 06:37:13,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 06:37:13,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:13,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-12-02 06:37:13,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:13,955 INFO L124 PetriNetUnfolderBase]: 4206/5691 cut-off events. [2024-12-02 06:37:13,956 INFO L125 PetriNetUnfolderBase]: For 477/477 co-relation queries the response was YES. [2024-12-02 06:37:13,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11679 conditions, 5691 events. 4206/5691 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 24076 event pairs, 1080 based on Foata normal form. 2/5302 useless extension candidates. Maximal degree in co-relation 10316. Up to 4714 conditions per place. [2024-12-02 06:37:13,999 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 48 selfloop transitions, 3 changer transitions 2/56 dead transitions. [2024-12-02 06:37:13,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 263 flow [2024-12-02 06:37:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-12-02 06:37:14,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-12-02 06:37:14,014 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 3 states and 81 transitions. [2024-12-02 06:37:14,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 263 flow [2024-12-02 06:37:14,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-12-02 06:37:14,032 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 101 flow [2024-12-02 06:37:14,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-12-02 06:37:14,037 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-12-02 06:37:14,038 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 101 flow [2024-12-02 06:37:14,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-12-02 06:37:14,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:14,038 INFO L206 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] [2024-12-02 06:37:14,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:37:14,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:14,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash 530523890, now seen corresponding path program 1 times [2024-12-02 06:37:14,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:14,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689378825] [2024-12-02 06:37:14,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:14,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:14,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:14,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689378825] [2024-12-02 06:37:14,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689378825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:14,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:14,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:14,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81731734] [2024-12-02 06:37:14,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:14,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:14,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:14,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:14,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:14,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:14,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:14,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:14,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:14,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:15,064 INFO L124 PetriNetUnfolderBase]: 9567/12582 cut-off events. [2024-12-02 06:37:15,064 INFO L125 PetriNetUnfolderBase]: For 1506/1506 co-relation queries the response was YES. [2024-12-02 06:37:15,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27992 conditions, 12582 events. 9567/12582 cut-off events. For 1506/1506 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 59805 event pairs, 3002 based on Foata normal form. 0/11905 useless extension candidates. Maximal degree in co-relation 3416. Up to 6920 conditions per place. [2024-12-02 06:37:15,107 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 94 selfloop transitions, 10 changer transitions 0/106 dead transitions. [2024-12-02 06:37:15,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 106 transitions, 491 flow [2024-12-02 06:37:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-12-02 06:37:15,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-12-02 06:37:15,109 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 101 flow. Second operand 5 states and 133 transitions. [2024-12-02 06:37:15,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 106 transitions, 491 flow [2024-12-02 06:37:15,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 106 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:15,111 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 161 flow [2024-12-02 06:37:15,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2024-12-02 06:37:15,112 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-12-02 06:37:15,112 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 161 flow [2024-12-02 06:37:15,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:15,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:15,112 INFO L206 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] [2024-12-02 06:37:15,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:37:15,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:15,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:15,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1068312236, now seen corresponding path program 2 times [2024-12-02 06:37:15,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:15,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072535643] [2024-12-02 06:37:15,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:37:15,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:15,130 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:15,130 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:15,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:15,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072535643] [2024-12-02 06:37:15,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072535643] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:37:15,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427682739] [2024-12-02 06:37:15,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:37:15,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:15,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:15,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:37:15,281 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:15,281 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:15,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:37:15,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:15,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:37:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:15,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427682739] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:37:15,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:37:15,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-02 06:37:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040117170] [2024-12-02 06:37:15,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:37:15,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:37:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:15,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:37:15,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:37:15,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:15,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 161 flow. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:37:15,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:15,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:15,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:16,795 INFO L124 PetriNetUnfolderBase]: 13384/17547 cut-off events. [2024-12-02 06:37:16,795 INFO L125 PetriNetUnfolderBase]: For 6108/6108 co-relation queries the response was YES. [2024-12-02 06:37:16,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45646 conditions, 17547 events. 13384/17547 cut-off events. For 6108/6108 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 87225 event pairs, 1081 based on Foata normal form. 332/17873 useless extension candidates. Maximal degree in co-relation 25859. Up to 3569 conditions per place. [2024-12-02 06:37:16,867 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 239 selfloop transitions, 36 changer transitions 0/277 dead transitions. [2024-12-02 06:37:16,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 277 transitions, 1362 flow [2024-12-02 06:37:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:37:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-02 06:37:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 360 transitions. [2024-12-02 06:37:16,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2024-12-02 06:37:16,870 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 161 flow. Second operand 14 states and 360 transitions. [2024-12-02 06:37:16,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 277 transitions, 1362 flow [2024-12-02 06:37:16,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 277 transitions, 1362 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:37:16,878 INFO L231 Difference]: Finished difference. Result has 64 places, 74 transitions, 411 flow [2024-12-02 06:37:16,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=411, PETRI_PLACES=64, PETRI_TRANSITIONS=74} [2024-12-02 06:37:16,878 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2024-12-02 06:37:16,879 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 74 transitions, 411 flow [2024-12-02 06:37:16,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:37:16,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:16,879 INFO L206 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] [2024-12-02 06:37:16,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:37:17,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:17,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:17,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2060555794, now seen corresponding path program 3 times [2024-12-02 06:37:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:17,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117762293] [2024-12-02 06:37:17,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:37:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:17,092 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 06:37:17,092 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:17,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:17,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117762293] [2024-12-02 06:37:17,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117762293] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:17,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:17,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:17,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58672925] [2024-12-02 06:37:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:17,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:17,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:17,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:17,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:17,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 74 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:17,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:17,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:17,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:18,686 INFO L124 PetriNetUnfolderBase]: 19352/25471 cut-off events. [2024-12-02 06:37:18,686 INFO L125 PetriNetUnfolderBase]: For 32999/32999 co-relation queries the response was YES. [2024-12-02 06:37:18,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77847 conditions, 25471 events. 19352/25471 cut-off events. For 32999/32999 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 128720 event pairs, 5926 based on Foata normal form. 62/25517 useless extension candidates. Maximal degree in co-relation 59952. Up to 11589 conditions per place. [2024-12-02 06:37:18,769 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 140 selfloop transitions, 19 changer transitions 0/161 dead transitions. [2024-12-02 06:37:18,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 161 transitions, 1098 flow [2024-12-02 06:37:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:18,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-12-02 06:37:18,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-12-02 06:37:18,771 INFO L175 Difference]: Start difference. First operand has 64 places, 74 transitions, 411 flow. Second operand 5 states and 132 transitions. [2024-12-02 06:37:18,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 161 transitions, 1098 flow [2024-12-02 06:37:19,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 161 transitions, 1051 flow, removed 13 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:19,045 INFO L231 Difference]: Finished difference. Result has 70 places, 82 transitions, 510 flow [2024-12-02 06:37:19,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=70, PETRI_TRANSITIONS=82} [2024-12-02 06:37:19,046 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2024-12-02 06:37:19,046 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 82 transitions, 510 flow [2024-12-02 06:37:19,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:19,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:19,047 INFO L206 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] [2024-12-02 06:37:19,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:37:19,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:19,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:19,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1270083022, now seen corresponding path program 1 times [2024-12-02 06:37:19,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:19,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202850286] [2024-12-02 06:37:19,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:19,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:19,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:19,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202850286] [2024-12-02 06:37:19,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202850286] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:19,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:19,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:19,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758846437] [2024-12-02 06:37:19,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:19,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:19,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:19,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:19,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:19,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:19,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 82 transitions, 510 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:19,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:19,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:19,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:20,603 INFO L124 PetriNetUnfolderBase]: 21250/28067 cut-off events. [2024-12-02 06:37:20,604 INFO L125 PetriNetUnfolderBase]: For 45521/45635 co-relation queries the response was YES. [2024-12-02 06:37:20,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88345 conditions, 28067 events. 21250/28067 cut-off events. For 45521/45635 co-relation queries the response was YES. Maximal size of possible extension queue 973. Compared 146237 event pairs, 6437 based on Foata normal form. 0/26621 useless extension candidates. Maximal degree in co-relation 78555. Up to 13895 conditions per place. [2024-12-02 06:37:20,733 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 110 selfloop transitions, 15 changer transitions 15/144 dead transitions. [2024-12-02 06:37:20,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 144 transitions, 1012 flow [2024-12-02 06:37:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:20,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-12-02 06:37:20,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2024-12-02 06:37:20,735 INFO L175 Difference]: Start difference. First operand has 70 places, 82 transitions, 510 flow. Second operand 5 states and 131 transitions. [2024-12-02 06:37:20,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 144 transitions, 1012 flow [2024-12-02 06:37:21,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 144 transitions, 972 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:21,054 INFO L231 Difference]: Finished difference. Result has 75 places, 82 transitions, 527 flow [2024-12-02 06:37:21,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=75, PETRI_TRANSITIONS=82} [2024-12-02 06:37:21,055 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2024-12-02 06:37:21,055 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 82 transitions, 527 flow [2024-12-02 06:37:21,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:21,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:21,055 INFO L206 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] [2024-12-02 06:37:21,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:37:21,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:21,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:21,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1860483778, now seen corresponding path program 2 times [2024-12-02 06:37:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906610067] [2024-12-02 06:37:21,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:37:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:21,070 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:37:21,070 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:21,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:21,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906610067] [2024-12-02 06:37:21,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906610067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:21,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:21,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:21,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184377634] [2024-12-02 06:37:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:21,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:21,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:21,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:21,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:21,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:21,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 82 transitions, 527 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:21,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:21,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:21,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:23,478 INFO L124 PetriNetUnfolderBase]: 34221/44469 cut-off events. [2024-12-02 06:37:23,478 INFO L125 PetriNetUnfolderBase]: For 86709/87013 co-relation queries the response was YES. [2024-12-02 06:37:23,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142454 conditions, 44469 events. 34221/44469 cut-off events. For 86709/87013 co-relation queries the response was YES. Maximal size of possible extension queue 1449. Compared 233290 event pairs, 13359 based on Foata normal form. 367/42637 useless extension candidates. Maximal degree in co-relation 119129. Up to 28367 conditions per place. [2024-12-02 06:37:23,660 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 253 selfloop transitions, 7 changer transitions 0/264 dead transitions. [2024-12-02 06:37:23,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 264 transitions, 2336 flow [2024-12-02 06:37:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-12-02 06:37:23,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-12-02 06:37:23,661 INFO L175 Difference]: Start difference. First operand has 75 places, 82 transitions, 527 flow. Second operand 5 states and 128 transitions. [2024-12-02 06:37:23,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 264 transitions, 2336 flow [2024-12-02 06:37:23,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 264 transitions, 2236 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-12-02 06:37:23,986 INFO L231 Difference]: Finished difference. Result has 78 places, 88 transitions, 547 flow [2024-12-02 06:37:23,986 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=547, PETRI_PLACES=78, PETRI_TRANSITIONS=88} [2024-12-02 06:37:23,986 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 32 predicate places. [2024-12-02 06:37:23,986 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 88 transitions, 547 flow [2024-12-02 06:37:23,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:23,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:23,987 INFO L206 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] [2024-12-02 06:37:23,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:37:23,987 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:23,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 126644926, now seen corresponding path program 4 times [2024-12-02 06:37:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:23,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207714916] [2024-12-02 06:37:23,988 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:37:23,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:23,996 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:37:23,996 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:24,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207714916] [2024-12-02 06:37:24,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207714916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:24,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:24,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403229913] [2024-12-02 06:37:24,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:24,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:24,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:24,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:24,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:24,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:24,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 88 transitions, 547 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:24,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:24,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:24,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:27,332 INFO L124 PetriNetUnfolderBase]: 37457/48910 cut-off events. [2024-12-02 06:37:27,332 INFO L125 PetriNetUnfolderBase]: For 94136/96319 co-relation queries the response was YES. [2024-12-02 06:37:27,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167634 conditions, 48910 events. 37457/48910 cut-off events. For 94136/96319 co-relation queries the response was YES. Maximal size of possible extension queue 1647. Compared 263725 event pairs, 9049 based on Foata normal form. 1597/50481 useless extension candidates. Maximal degree in co-relation 149193. Up to 16805 conditions per place. [2024-12-02 06:37:27,579 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 184 selfloop transitions, 45 changer transitions 0/232 dead transitions. [2024-12-02 06:37:27,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 232 transitions, 1680 flow [2024-12-02 06:37:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:37:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 06:37:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-12-02 06:37:27,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6394557823129252 [2024-12-02 06:37:27,581 INFO L175 Difference]: Start difference. First operand has 78 places, 88 transitions, 547 flow. Second operand 7 states and 188 transitions. [2024-12-02 06:37:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 232 transitions, 1680 flow [2024-12-02 06:37:27,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 232 transitions, 1680 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:37:27,949 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 844 flow [2024-12-02 06:37:27,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=844, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2024-12-02 06:37:27,950 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 42 predicate places. [2024-12-02 06:37:27,950 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 844 flow [2024-12-02 06:37:27,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:27,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:27,950 INFO L206 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] [2024-12-02 06:37:27,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:37:27,951 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:27,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash -11795494, now seen corresponding path program 3 times [2024-12-02 06:37:27,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:27,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403890829] [2024-12-02 06:37:27,951 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:37:27,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:27,960 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 06:37:27,960 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:28,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:28,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403890829] [2024-12-02 06:37:28,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403890829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:28,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:28,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:28,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004669043] [2024-12-02 06:37:28,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:28,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:28,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:28,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:28,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:28,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:28,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 844 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:28,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:28,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:31,393 INFO L124 PetriNetUnfolderBase]: 43100/56382 cut-off events. [2024-12-02 06:37:31,393 INFO L125 PetriNetUnfolderBase]: For 149138/149742 co-relation queries the response was YES. [2024-12-02 06:37:31,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213256 conditions, 56382 events. 43100/56382 cut-off events. For 149138/149742 co-relation queries the response was YES. Maximal size of possible extension queue 1815. Compared 312593 event pairs, 14275 based on Foata normal form. 104/55022 useless extension candidates. Maximal degree in co-relation 187574. Up to 34274 conditions per place. [2024-12-02 06:37:31,720 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 163 selfloop transitions, 39 changer transitions 2/209 dead transitions. [2024-12-02 06:37:31,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 209 transitions, 1918 flow [2024-12-02 06:37:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-12-02 06:37:31,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-12-02 06:37:31,721 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 844 flow. Second operand 5 states and 132 transitions. [2024-12-02 06:37:31,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 209 transitions, 1918 flow [2024-12-02 06:37:32,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 209 transitions, 1841 flow, removed 23 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:32,909 INFO L231 Difference]: Finished difference. Result has 94 places, 126 transitions, 1112 flow [2024-12-02 06:37:32,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1112, PETRI_PLACES=94, PETRI_TRANSITIONS=126} [2024-12-02 06:37:32,910 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 48 predicate places. [2024-12-02 06:37:32,910 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 126 transitions, 1112 flow [2024-12-02 06:37:32,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:37:32,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:32,910 INFO L206 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] [2024-12-02 06:37:32,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:37:32,910 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:32,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1075555226, now seen corresponding path program 5 times [2024-12-02 06:37:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:32,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912752392] [2024-12-02 06:37:32,911 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:37:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:32,922 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:32,922 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:32,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:32,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:32,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912752392] [2024-12-02 06:37:32,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912752392] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:37:32,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828839444] [2024-12-02 06:37:32,982 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:37:32,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:32,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:32,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:32,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:37:33,049 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:33,049 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:33,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:37:33,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:33,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:37:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:33,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828839444] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:37:33,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:37:33,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 06:37:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146206929] [2024-12-02 06:37:33,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:37:33,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:37:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:33,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:37:33,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:37:33,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:37:33,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 126 transitions, 1112 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-12-02 06:37:33,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:33,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:37:33,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:37,307 INFO L124 PetriNetUnfolderBase]: 45634/59700 cut-off events. [2024-12-02 06:37:37,307 INFO L125 PetriNetUnfolderBase]: For 182396/186256 co-relation queries the response was YES. [2024-12-02 06:37:37,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236810 conditions, 59700 events. 45634/59700 cut-off events. For 182396/186256 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 336177 event pairs, 6365 based on Foata normal form. 1993/61685 useless extension candidates. Maximal degree in co-relation 216063. Up to 14508 conditions per place. [2024-12-02 06:37:37,628 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 217 selfloop transitions, 68 changer transitions 0/288 dead transitions. [2024-12-02 06:37:37,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 288 transitions, 2545 flow [2024-12-02 06:37:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:37:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 06:37:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 205 transitions. [2024-12-02 06:37:37,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6101190476190477 [2024-12-02 06:37:37,630 INFO L175 Difference]: Start difference. First operand has 94 places, 126 transitions, 1112 flow. Second operand 8 states and 205 transitions. [2024-12-02 06:37:37,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 288 transitions, 2545 flow [2024-12-02 06:37:39,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 288 transitions, 2498 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:39,057 INFO L231 Difference]: Finished difference. Result has 104 places, 134 transitions, 1360 flow [2024-12-02 06:37:39,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1360, PETRI_PLACES=104, PETRI_TRANSITIONS=134} [2024-12-02 06:37:39,058 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 58 predicate places. [2024-12-02 06:37:39,058 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 134 transitions, 1360 flow [2024-12-02 06:37:39,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-12-02 06:37:39,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:39,058 INFO L206 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] [2024-12-02 06:37:39,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:37:39,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 06:37:39,259 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:39,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1513380156, now seen corresponding path program 4 times [2024-12-02 06:37:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:39,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991963946] [2024-12-02 06:37:39,259 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:37:39,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:39,267 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:37:39,267 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:39,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:39,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991963946] [2024-12-02 06:37:39,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991963946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:39,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:39,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:39,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020484177] [2024-12-02 06:37:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:39,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:39,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:39,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:39,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-12-02 06:37:39,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 134 transitions, 1360 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-12-02 06:37:39,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:39,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-12-02 06:37:39,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:44,904 INFO L124 PetriNetUnfolderBase]: 62421/80960 cut-off events. [2024-12-02 06:37:44,904 INFO L125 PetriNetUnfolderBase]: For 343572/343572 co-relation queries the response was YES. [2024-12-02 06:37:45,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339928 conditions, 80960 events. 62421/80960 cut-off events. For 343572/343572 co-relation queries the response was YES. Maximal size of possible extension queue 2338. Compared 443462 event pairs, 8038 based on Foata normal form. 984/79523 useless extension candidates. Maximal degree in co-relation 313044. Up to 29233 conditions per place. [2024-12-02 06:37:45,332 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 322 selfloop transitions, 67 changer transitions 2/392 dead transitions. [2024-12-02 06:37:45,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 392 transitions, 4543 flow [2024-12-02 06:37:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:37:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 06:37:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2024-12-02 06:37:45,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5884353741496599 [2024-12-02 06:37:45,334 INFO L175 Difference]: Start difference. First operand has 104 places, 134 transitions, 1360 flow. Second operand 7 states and 173 transitions. [2024-12-02 06:37:45,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 392 transitions, 4543 flow [2024-12-02 06:37:48,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 392 transitions, 4501 flow, removed 21 selfloop flow, removed 0 redundant places. [2024-12-02 06:37:48,539 INFO L231 Difference]: Finished difference. Result has 114 places, 187 transitions, 2210 flow [2024-12-02 06:37:48,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1348, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2210, PETRI_PLACES=114, PETRI_TRANSITIONS=187} [2024-12-02 06:37:48,539 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 68 predicate places. [2024-12-02 06:37:48,539 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 187 transitions, 2210 flow [2024-12-02 06:37:48,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-12-02 06:37:48,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:48,540 INFO L206 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] [2024-12-02 06:37:48,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:37:48,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:37:48,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 724822732, now seen corresponding path program 5 times [2024-12-02 06:37:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:37:48,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116830160] [2024-12-02 06:37:48,540 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:37:48,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:37:48,552 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:48,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:48,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:48,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:37:48,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116830160] [2024-12-02 06:37:48,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116830160] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:37:48,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514350039] [2024-12-02 06:37:48,607 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:37:48,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:48,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:48,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:48,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:37:48,675 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:37:48,675 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:37:48,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:37:48,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:48,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:37:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:48,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514350039] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:37:48,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:37:48,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-12-02 06:37:48,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116861709] [2024-12-02 06:37:48,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:37:48,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:37:48,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:37:48,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:37:48,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:37:48,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-12-02 06:37:48,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 187 transitions, 2210 flow. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 06:37:48,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:48,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-12-02 06:37:48,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:56,451 INFO L124 PetriNetUnfolderBase]: 74121/96836 cut-off events. [2024-12-02 06:37:56,451 INFO L125 PetriNetUnfolderBase]: For 513748/513748 co-relation queries the response was YES. [2024-12-02 06:37:56,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432942 conditions, 96836 events. 74121/96836 cut-off events. For 513748/513748 co-relation queries the response was YES. Maximal size of possible extension queue 2888. Compared 555353 event pairs, 8844 based on Foata normal form. 984/97820 useless extension candidates. Maximal degree in co-relation 403605. Up to 29117 conditions per place. [2024-12-02 06:37:57,160 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 484 selfloop transitions, 109 changer transitions 14/608 dead transitions. [2024-12-02 06:37:57,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 608 transitions, 7554 flow [2024-12-02 06:37:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:37:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-02 06:37:57,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 266 transitions. [2024-12-02 06:37:57,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-12-02 06:37:57,161 INFO L175 Difference]: Start difference. First operand has 114 places, 187 transitions, 2210 flow. Second operand 11 states and 266 transitions. [2024-12-02 06:37:57,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 608 transitions, 7554 flow [2024-12-02 06:38:01,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 608 transitions, 7552 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-12-02 06:38:01,418 INFO L231 Difference]: Finished difference. Result has 129 places, 243 transitions, 3305 flow [2024-12-02 06:38:01,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2148, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3305, PETRI_PLACES=129, PETRI_TRANSITIONS=243} [2024-12-02 06:38:01,419 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 83 predicate places. [2024-12-02 06:38:01,419 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 243 transitions, 3305 flow [2024-12-02 06:38:01,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 06:38:01,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:38:01,419 INFO L206 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] [2024-12-02 06:38:01,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:38:01,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06318097-74aa-4ae3-9889-df07ce961587/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 06:38:01,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:38:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash 376893728, now seen corresponding path program 6 times [2024-12-02 06:38:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674261273] [2024-12-02 06:38:01,621 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:38:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:01,631 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 06:38:01,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:38:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:01,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:01,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674261273] [2024-12-02 06:38:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674261273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933855294] [2024-12-02 06:38:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:01,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:01,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:01,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:01,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:01,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:38:01,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 243 transitions, 3305 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:01,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:38:01,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:38:01,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:38:09,786 INFO L124 PetriNetUnfolderBase]: 70402/92758 cut-off events. [2024-12-02 06:38:09,786 INFO L125 PetriNetUnfolderBase]: For 573788/574179 co-relation queries the response was YES. [2024-12-02 06:38:10,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429056 conditions, 92758 events. 70402/92758 cut-off events. For 573788/574179 co-relation queries the response was YES. Maximal size of possible extension queue 3034. Compared 545757 event pairs, 22426 based on Foata normal form. 262/92815 useless extension candidates. Maximal degree in co-relation 400249. Up to 49144 conditions per place. [2024-12-02 06:38:10,580 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 313 selfloop transitions, 30 changer transitions 8/401 dead transitions. [2024-12-02 06:38:10,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 401 transitions, 5580 flow [2024-12-02 06:38:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:38:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-12-02 06:38:10,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-12-02 06:38:10,582 INFO L175 Difference]: Start difference. First operand has 129 places, 243 transitions, 3305 flow. Second operand 5 states and 132 transitions. [2024-12-02 06:38:10,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 401 transitions, 5580 flow [2024-12-02 06:38:17,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 401 transitions, 5492 flow, removed 22 selfloop flow, removed 1 redundant places. [2024-12-02 06:38:17,079 INFO L231 Difference]: Finished difference. Result has 134 places, 248 transitions, 3411 flow [2024-12-02 06:38:17,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3268, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3411, PETRI_PLACES=134, PETRI_TRANSITIONS=248} [2024-12-02 06:38:17,079 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 88 predicate places. [2024-12-02 06:38:17,079 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 248 transitions, 3411 flow [2024-12-02 06:38:17,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:17,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:38:17,080 INFO L206 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] [2024-12-02 06:38:17,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:38:17,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:38:17,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1060234758, now seen corresponding path program 7 times [2024-12-02 06:38:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:17,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336146161] [2024-12-02 06:38:17,081 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:38:17,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:17,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336146161] [2024-12-02 06:38:17,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336146161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:17,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:17,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:17,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313727024] [2024-12-02 06:38:17,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:17,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:17,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:17,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:17,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-12-02 06:38:17,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 248 transitions, 3411 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-12-02 06:38:17,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:38:17,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-12-02 06:38:17,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:38:25,604 INFO L124 PetriNetUnfolderBase]: 71535/93686 cut-off events. [2024-12-02 06:38:25,604 INFO L125 PetriNetUnfolderBase]: For 660578/660578 co-relation queries the response was YES. [2024-12-02 06:38:25,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444783 conditions, 93686 events. 71535/93686 cut-off events. For 660578/660578 co-relation queries the response was YES. Maximal size of possible extension queue 2804. Compared 537913 event pairs, 26580 based on Foata normal form. 1148/94834 useless extension candidates. Maximal degree in co-relation 426066. Up to 49590 conditions per place. [2024-12-02 06:38:26,183 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 226 selfloop transitions, 105 changer transitions 11/343 dead transitions. [2024-12-02 06:38:26,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 343 transitions, 4724 flow [2024-12-02 06:38:26,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:38:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-12-02 06:38:26,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-12-02 06:38:26,185 INFO L175 Difference]: Start difference. First operand has 134 places, 248 transitions, 3411 flow. Second operand 6 states and 152 transitions. [2024-12-02 06:38:26,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 343 transitions, 4724 flow [2024-12-02 06:38:30,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 343 transitions, 4645 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-12-02 06:38:30,411 INFO L231 Difference]: Finished difference. Result has 138 places, 230 transitions, 3243 flow [2024-12-02 06:38:30,411 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3182, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3243, PETRI_PLACES=138, PETRI_TRANSITIONS=230} [2024-12-02 06:38:30,411 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 92 predicate places. [2024-12-02 06:38:30,411 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 230 transitions, 3243 flow [2024-12-02 06:38:30,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-12-02 06:38:30,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:38:30,411 INFO L206 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] [2024-12-02 06:38:30,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:38:30,412 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:38:30,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash 537700846, now seen corresponding path program 6 times [2024-12-02 06:38:30,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967409389] [2024-12-02 06:38:30,412 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:38:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:30,420 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-12-02 06:38:30,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:38:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:30,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967409389] [2024-12-02 06:38:30,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967409389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:30,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:30,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:30,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047400240] [2024-12-02 06:38:30,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:30,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:30,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:30,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:30,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:30,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:38:30,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 230 transitions, 3243 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:30,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:38:30,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:38:30,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:38:38,059 INFO L124 PetriNetUnfolderBase]: 64023/84643 cut-off events. [2024-12-02 06:38:38,059 INFO L125 PetriNetUnfolderBase]: For 584894/588405 co-relation queries the response was YES. [2024-12-02 06:38:38,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400059 conditions, 84643 events. 64023/84643 cut-off events. For 584894/588405 co-relation queries the response was YES. Maximal size of possible extension queue 2930. Compared 503149 event pairs, 23773 based on Foata normal form. 369/84698 useless extension candidates. Maximal degree in co-relation 382891. Up to 49698 conditions per place. [2024-12-02 06:38:38,634 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 367 selfloop transitions, 20 changer transitions 14/408 dead transitions. [2024-12-02 06:38:38,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 408 transitions, 6085 flow [2024-12-02 06:38:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:38:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-12-02 06:38:38,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.580952380952381 [2024-12-02 06:38:38,635 INFO L175 Difference]: Start difference. First operand has 138 places, 230 transitions, 3243 flow. Second operand 5 states and 122 transitions. [2024-12-02 06:38:38,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 408 transitions, 6085 flow [2024-12-02 06:38:42,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 408 transitions, 5765 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-12-02 06:38:42,685 INFO L231 Difference]: Finished difference. Result has 135 places, 230 transitions, 3050 flow [2024-12-02 06:38:42,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2992, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3050, PETRI_PLACES=135, PETRI_TRANSITIONS=230} [2024-12-02 06:38:42,686 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 89 predicate places. [2024-12-02 06:38:42,686 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 230 transitions, 3050 flow [2024-12-02 06:38:42,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:42,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:38:42,686 INFO L206 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] [2024-12-02 06:38:42,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:38:42,686 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:38:42,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:42,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1508298240, now seen corresponding path program 7 times [2024-12-02 06:38:42,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:42,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737710163] [2024-12-02 06:38:42,686 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:38:42,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:42,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:42,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737710163] [2024-12-02 06:38:42,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737710163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:42,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:42,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69167933] [2024-12-02 06:38:42,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:42,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:42,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:42,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:42,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:38:42,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 230 transitions, 3050 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:42,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:38:42,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:38:42,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:38:49,418 INFO L124 PetriNetUnfolderBase]: 61269/80708 cut-off events. [2024-12-02 06:38:49,418 INFO L125 PetriNetUnfolderBase]: For 496182/499626 co-relation queries the response was YES. [2024-12-02 06:38:49,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372865 conditions, 80708 events. 61269/80708 cut-off events. For 496182/499626 co-relation queries the response was YES. Maximal size of possible extension queue 2783. Compared 473939 event pairs, 19116 based on Foata normal form. 1114/81661 useless extension candidates. Maximal degree in co-relation 348154. Up to 38410 conditions per place. [2024-12-02 06:38:49,937 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 298 selfloop transitions, 47 changer transitions 16/368 dead transitions. [2024-12-02 06:38:49,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 368 transitions, 5030 flow [2024-12-02 06:38:49,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:38:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-12-02 06:38:49,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-12-02 06:38:49,938 INFO L175 Difference]: Start difference. First operand has 135 places, 230 transitions, 3050 flow. Second operand 5 states and 130 transitions. [2024-12-02 06:38:49,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 368 transitions, 5030 flow [2024-12-02 06:38:54,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 368 transitions, 4932 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-12-02 06:38:54,586 INFO L231 Difference]: Finished difference. Result has 137 places, 242 transitions, 3346 flow [2024-12-02 06:38:54,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2958, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3346, PETRI_PLACES=137, PETRI_TRANSITIONS=242} [2024-12-02 06:38:54,586 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 91 predicate places. [2024-12-02 06:38:54,586 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 242 transitions, 3346 flow [2024-12-02 06:38:54,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:54,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:38:54,587 INFO L206 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] [2024-12-02 06:38:54,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:38:54,587 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:38:54,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash 711645726, now seen corresponding path program 8 times [2024-12-02 06:38:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:54,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107087697] [2024-12-02 06:38:54,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:38:54,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:54,596 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:38:54,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:38:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:38:54,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:54,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107087697] [2024-12-02 06:38:54,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107087697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:54,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:54,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:54,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627674285] [2024-12-02 06:38:54,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:54,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:54,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:54,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:38:54,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 242 transitions, 3346 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:38:54,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:38:54,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:38:54,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:39:01,450 INFO L124 PetriNetUnfolderBase]: 60542/79649 cut-off events. [2024-12-02 06:39:01,450 INFO L125 PetriNetUnfolderBase]: For 515177/515860 co-relation queries the response was YES. [2024-12-02 06:39:01,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366586 conditions, 79649 events. 60542/79649 cut-off events. For 515177/515860 co-relation queries the response was YES. Maximal size of possible extension queue 2691. Compared 459669 event pairs, 25242 based on Foata normal form. 98/79379 useless extension candidates. Maximal degree in co-relation 342221. Up to 51900 conditions per place. [2024-12-02 06:39:01,972 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 259 selfloop transitions, 42 changer transitions 25/376 dead transitions. [2024-12-02 06:39:01,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 376 transitions, 5479 flow [2024-12-02 06:39:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:39:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:39:01,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-12-02 06:39:01,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.580952380952381 [2024-12-02 06:39:01,973 INFO L175 Difference]: Start difference. First operand has 137 places, 242 transitions, 3346 flow. Second operand 5 states and 122 transitions. [2024-12-02 06:39:01,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 376 transitions, 5479 flow [2024-12-02 06:39:04,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 376 transitions, 5410 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-12-02 06:39:04,593 INFO L231 Difference]: Finished difference. Result has 141 places, 252 transitions, 3640 flow [2024-12-02 06:39:04,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3640, PETRI_PLACES=141, PETRI_TRANSITIONS=252} [2024-12-02 06:39:04,594 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 95 predicate places. [2024-12-02 06:39:04,594 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 252 transitions, 3640 flow [2024-12-02 06:39:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-12-02 06:39:04,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:39:04,594 INFO L206 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] [2024-12-02 06:39:04,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:39:04,594 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:39:04,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:04,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1986894226, now seen corresponding path program 1 times [2024-12-02 06:39:04,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:04,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668796567] [2024-12-02 06:39:04,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:39:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:39:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:39:04,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668796567] [2024-12-02 06:39:04,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668796567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:04,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:04,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:39:04,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167915486] [2024-12-02 06:39:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:04,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:39:04,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:04,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:39:04,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:39:04,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:39:04,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 252 transitions, 3640 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-12-02 06:39:04,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:39:04,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:39:04,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:39:12,486 INFO L124 PetriNetUnfolderBase]: 67043/87743 cut-off events. [2024-12-02 06:39:12,486 INFO L125 PetriNetUnfolderBase]: For 667199/670288 co-relation queries the response was YES. [2024-12-02 06:39:12,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422011 conditions, 87743 events. 67043/87743 cut-off events. For 667199/670288 co-relation queries the response was YES. Maximal size of possible extension queue 3124. Compared 511584 event pairs, 19820 based on Foata normal form. 1485/88908 useless extension candidates. Maximal degree in co-relation 403165. Up to 40750 conditions per place. [2024-12-02 06:39:13,068 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 183 selfloop transitions, 215 changer transitions 0/405 dead transitions. [2024-12-02 06:39:13,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 405 transitions, 6278 flow [2024-12-02 06:39:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:39:13,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:39:13,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-12-02 06:39:13,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-12-02 06:39:13,069 INFO L175 Difference]: Start difference. First operand has 141 places, 252 transitions, 3640 flow. Second operand 5 states and 129 transitions. [2024-12-02 06:39:13,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 405 transitions, 6278 flow [2024-12-02 06:39:15,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 405 transitions, 5950 flow, removed 49 selfloop flow, removed 14 redundant places. [2024-12-02 06:39:16,003 INFO L231 Difference]: Finished difference. Result has 126 places, 333 transitions, 5379 flow [2024-12-02 06:39:16,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3411, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5379, PETRI_PLACES=126, PETRI_TRANSITIONS=333} [2024-12-02 06:39:16,003 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 80 predicate places. [2024-12-02 06:39:16,003 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 333 transitions, 5379 flow [2024-12-02 06:39:16,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-12-02 06:39:16,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:39:16,004 INFO L206 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] [2024-12-02 06:39:16,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:39:16,004 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:39:16,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1237048340, now seen corresponding path program 2 times [2024-12-02 06:39:16,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:16,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190610735] [2024-12-02 06:39:16,005 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:39:16,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:16,012 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:39:16,012 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:39:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:39:16,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:16,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190610735] [2024-12-02 06:39:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190610735] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:16,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:16,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:39:16,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066075041] [2024-12-02 06:39:16,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:16,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:39:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:16,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:39:16,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:39:16,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:39:16,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 333 transitions, 5379 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2024-12-02 06:39:16,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:39:16,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:39:16,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:39:24,642 INFO L124 PetriNetUnfolderBase]: 79225/104687 cut-off events. [2024-12-02 06:39:24,643 INFO L125 PetriNetUnfolderBase]: For 779991/782713 co-relation queries the response was YES. [2024-12-02 06:39:25,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504358 conditions, 104687 events. 79225/104687 cut-off events. For 779991/782713 co-relation queries the response was YES. Maximal size of possible extension queue 3735. Compared 633907 event pairs, 16083 based on Foata normal form. 1482/105711 useless extension candidates. Maximal degree in co-relation 429229. Up to 38277 conditions per place. [2024-12-02 06:39:25,557 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 255 selfloop transitions, 246 changer transitions 1/509 dead transitions. [2024-12-02 06:39:25,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 509 transitions, 7928 flow [2024-12-02 06:39:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:39:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 06:39:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-12-02 06:39:25,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6360544217687075 [2024-12-02 06:39:25,559 INFO L175 Difference]: Start difference. First operand has 126 places, 333 transitions, 5379 flow. Second operand 7 states and 187 transitions. [2024-12-02 06:39:25,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 509 transitions, 7928 flow [2024-12-02 06:39:28,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 509 transitions, 7673 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:39:28,644 INFO L231 Difference]: Finished difference. Result has 133 places, 366 transitions, 6433 flow [2024-12-02 06:39:28,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5152, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6433, PETRI_PLACES=133, PETRI_TRANSITIONS=366} [2024-12-02 06:39:28,645 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 87 predicate places. [2024-12-02 06:39:28,645 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 366 transitions, 6433 flow [2024-12-02 06:39:28,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2024-12-02 06:39:28,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:39:28,645 INFO L206 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] [2024-12-02 06:39:28,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:39:28,646 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-12-02 06:39:28,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:39:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1585954004, now seen corresponding path program 3 times [2024-12-02 06:39:28,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:39:28,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175800325] [2024-12-02 06:39:28,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:39:28,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:39:28,652 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 06:39:28,652 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:39:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:39:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:39:28,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175800325] [2024-12-02 06:39:28,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175800325] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:39:28,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:39:28,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:39:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937780344] [2024-12-02 06:39:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:39:28,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:39:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:39:28,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:39:28,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:39:28,686 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-12-02 06:39:28,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 366 transitions, 6433 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-12-02 06:39:28,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:39:28,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-12-02 06:39:28,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand