./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:35:04,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:35:04,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:35:04,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:35:04,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:35:04,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:35:04,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:35:04,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:35:04,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:35:04,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:35:04,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:35:04,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:35:04,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:35:04,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:35:04,906 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:35:04,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:35:04,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:35:04,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:35:04,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:35:04,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:35:04,907 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:35:04,908 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:35:04,908 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:35:04,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:35:04,909 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:35:04,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:35:04,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:35:04,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:35:04,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:35:04,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:35:04,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:35:04,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:35:04,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:35:04,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:35:04,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:35:04,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:35:04,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:35:04,913 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 [2024-10-13 12:35:05,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:35:05,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:35:05,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:35:05,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:35:05,207 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:35:05,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2024-10-13 12:35:06,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:35:06,810 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:35:06,810 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2024-10-13 12:35:06,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4daf594/3863690fa4fc46e9bd9cd294a65b2772/FLAG832e0dc74 [2024-10-13 12:35:07,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4daf594/3863690fa4fc46e9bd9cd294a65b2772 [2024-10-13 12:35:07,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:35:07,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:35:07,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:35:07,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:35:07,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:35:07,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729ba70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07, skipping insertion in model container [2024-10-13 12:35:07,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:35:07,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:35:07,469 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:35:07,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:35:07,523 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:35:07,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07 WrapperNode [2024-10-13 12:35:07,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:35:07,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:35:07,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:35:07,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:35:07,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,565 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-10-13 12:35:07,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:35:07,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:35:07,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:35:07,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:35:07,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,597 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 12:35:07,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:35:07,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:35:07,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:35:07,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:35:07,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (1/1) ... [2024-10-13 12:35:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:35:07,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:07,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:35:07,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:35:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:35:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 12:35:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 12:35:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 12:35:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 12:35:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 12:35:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 12:35:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-13 12:35:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-13 12:35:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:35:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-13 12:35:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-13 12:35:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-13 12:35:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-13 12:35:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:35:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:35:07,721 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:35:07,845 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:35:07,848 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:35:08,129 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:35:08,129 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:35:08,358 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:35:08,359 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-13 12:35:08,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:08 BoogieIcfgContainer [2024-10-13 12:35:08,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:35:08,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:35:08,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:35:08,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:35:08,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:35:07" (1/3) ... [2024-10-13 12:35:08,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ebebdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:08, skipping insertion in model container [2024-10-13 12:35:08,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:07" (2/3) ... [2024-10-13 12:35:08,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ebebdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:08, skipping insertion in model container [2024-10-13 12:35:08,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:08" (3/3) ... [2024-10-13 12:35:08,369 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-10-13 12:35:08,385 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:35:08,386 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:35:08,386 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:35:08,450 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-10-13 12:35:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 138 flow [2024-10-13 12:35:08,528 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-10-13 12:35:08,529 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 12:35:08,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 42 events. 6/42 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-13 12:35:08,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 138 flow [2024-10-13 12:35:08,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 118 flow [2024-10-13 12:35:08,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:35:08,556 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;@48f12f62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:35:08,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 12:35:08,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:35:08,582 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-10-13 12:35:08,582 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 12:35:08,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:08,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:08,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:08,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:08,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1676365791, now seen corresponding path program 1 times [2024-10-13 12:35:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:08,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817449577] [2024-10-13 12:35:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:09,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:09,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817449577] [2024-10-13 12:35:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817449577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:09,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:09,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:35:09,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093833669] [2024-10-13 12:35:09,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:09,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:35:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:09,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:35:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:35:09,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:09,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:09,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:09,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:09,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:11,388 INFO L124 PetriNetUnfolderBase]: 18895/21812 cut-off events. [2024-10-13 12:35:11,388 INFO L125 PetriNetUnfolderBase]: For 1387/1387 co-relation queries the response was YES. [2024-10-13 12:35:11,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44837 conditions, 21812 events. 18895/21812 cut-off events. For 1387/1387 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 69668 event pairs, 1570 based on Foata normal form. 2/11929 useless extension candidates. Maximal degree in co-relation 38647. Up to 20725 conditions per place. [2024-10-13 12:35:11,564 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 53 selfloop transitions, 7 changer transitions 1/68 dead transitions. [2024-10-13 12:35:11,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 327 flow [2024-10-13 12:35:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:35:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:35:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-10-13 12:35:11,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-13 12:35:11,579 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 118 flow. Second operand 3 states and 105 transitions. [2024-10-13 12:35:11,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 327 flow [2024-10-13 12:35:11,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 281 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-13 12:35:11,610 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 137 flow [2024-10-13 12:35:11,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2024-10-13 12:35:11,617 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2024-10-13 12:35:11,617 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 137 flow [2024-10-13 12:35:11,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:11,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:11,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:11,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:35:11,619 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:11,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:11,619 INFO L85 PathProgramCache]: Analyzing trace with hash -300462063, now seen corresponding path program 1 times [2024-10-13 12:35:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:11,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175831756] [2024-10-13 12:35:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:11,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:11,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175831756] [2024-10-13 12:35:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175831756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:11,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:11,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:11,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513477699] [2024-10-13 12:35:11,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:11,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:11,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:11,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:11,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:11,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:11,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:11,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:11,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:11,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:14,105 INFO L124 PetriNetUnfolderBase]: 23887/27736 cut-off events. [2024-10-13 12:35:14,105 INFO L125 PetriNetUnfolderBase]: For 6134/6134 co-relation queries the response was YES. [2024-10-13 12:35:14,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68982 conditions, 27736 events. 23887/27736 cut-off events. For 6134/6134 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 95880 event pairs, 2287 based on Foata normal form. 294/27960 useless extension candidates. Maximal degree in co-relation 18889. Up to 12315 conditions per place. [2024-10-13 12:35:14,295 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 106 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2024-10-13 12:35:14,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 123 transitions, 595 flow [2024-10-13 12:35:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:14,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-10-13 12:35:14,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-10-13 12:35:14,301 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 137 flow. Second operand 5 states and 176 transitions. [2024-10-13 12:35:14,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 123 transitions, 595 flow [2024-10-13 12:35:14,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 123 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:14,305 INFO L231 Difference]: Finished difference. Result has 48 places, 52 transitions, 195 flow [2024-10-13 12:35:14,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=48, PETRI_TRANSITIONS=52} [2024-10-13 12:35:14,307 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2024-10-13 12:35:14,307 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 52 transitions, 195 flow [2024-10-13 12:35:14,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:14,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:14,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:14,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:35:14,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:14,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:14,310 INFO L85 PathProgramCache]: Analyzing trace with hash 583350020, now seen corresponding path program 1 times [2024-10-13 12:35:14,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:14,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894880364] [2024-10-13 12:35:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:14,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:14,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894880364] [2024-10-13 12:35:14,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894880364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:14,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:14,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:14,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552272878] [2024-10-13 12:35:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:14,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:14,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:14,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:14,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:14,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 52 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:14,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:14,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:14,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:16,443 INFO L124 PetriNetUnfolderBase]: 23497/27346 cut-off events. [2024-10-13 12:35:16,443 INFO L125 PetriNetUnfolderBase]: For 19643/19643 co-relation queries the response was YES. [2024-10-13 12:35:16,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77678 conditions, 27346 events. 23497/27346 cut-off events. For 19643/19643 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 95801 event pairs, 1822 based on Foata normal form. 390/27666 useless extension candidates. Maximal degree in co-relation 40099. Up to 11925 conditions per place. [2024-10-13 12:35:16,684 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 105 selfloop transitions, 8 changer transitions 0/120 dead transitions. [2024-10-13 12:35:16,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 120 transitions, 612 flow [2024-10-13 12:35:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-10-13 12:35:16,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-10-13 12:35:16,689 INFO L175 Difference]: Start difference. First operand has 48 places, 52 transitions, 195 flow. Second operand 5 states and 174 transitions. [2024-10-13 12:35:16,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 120 transitions, 612 flow [2024-10-13 12:35:16,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 120 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:35:16,726 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 209 flow [2024-10-13 12:35:16,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2024-10-13 12:35:16,727 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-10-13 12:35:16,728 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 209 flow [2024-10-13 12:35:16,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:16,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:16,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:16,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:35:16,729 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:16,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:16,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1393250483, now seen corresponding path program 2 times [2024-10-13 12:35:16,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:16,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568515582] [2024-10-13 12:35:16,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:16,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:16,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:16,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568515582] [2024-10-13 12:35:16,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568515582] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:16,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40106412] [2024-10-13 12:35:16,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:35:16,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:16,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:16,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:16,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 12:35:17,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:35:17,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:35:17,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:35:17,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:35:17,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:17,337 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:35:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:17,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40106412] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:35:17,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:35:17,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 12:35:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610793174] [2024-10-13 12:35:17,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:35:17,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:35:17,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:17,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:35:17,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:35:17,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:17,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:17,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:17,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:17,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:18,740 INFO L124 PetriNetUnfolderBase]: 22438/26333 cut-off events. [2024-10-13 12:35:18,740 INFO L125 PetriNetUnfolderBase]: For 25522/25522 co-relation queries the response was YES. [2024-10-13 12:35:18,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77729 conditions, 26333 events. 22438/26333 cut-off events. For 25522/25522 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 96121 event pairs, 5044 based on Foata normal form. 565/26623 useless extension candidates. Maximal degree in co-relation 36142. Up to 13880 conditions per place. [2024-10-13 12:35:18,952 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 103 selfloop transitions, 8 changer transitions 0/118 dead transitions. [2024-10-13 12:35:18,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 118 transitions, 632 flow [2024-10-13 12:35:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-10-13 12:35:18,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-13 12:35:18,954 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 209 flow. Second operand 5 states and 175 transitions. [2024-10-13 12:35:18,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 118 transitions, 632 flow [2024-10-13 12:35:18,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 118 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:18,990 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 252 flow [2024-10-13 12:35:18,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-10-13 12:35:18,991 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places. [2024-10-13 12:35:18,992 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 252 flow [2024-10-13 12:35:18,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:18,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:18,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:19,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 12:35:19,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:19,194 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:19,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 535697087, now seen corresponding path program 1 times [2024-10-13 12:35:19,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:19,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366050345] [2024-10-13 12:35:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:19,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:19,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366050345] [2024-10-13 12:35:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366050345] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985284516] [2024-10-13 12:35:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:19,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:19,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:19,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:19,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 12:35:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:19,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:35:19,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:35:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:19,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:35:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:19,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985284516] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:35:19,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:35:19,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 12:35:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780048100] [2024-10-13 12:35:19,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:35:19,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:35:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:35:19,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:35:19,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:19,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:19,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:19,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:19,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:21,501 INFO L124 PetriNetUnfolderBase]: 30687/36524 cut-off events. [2024-10-13 12:35:21,501 INFO L125 PetriNetUnfolderBase]: For 61851/61857 co-relation queries the response was YES. [2024-10-13 12:35:21,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117832 conditions, 36524 events. 30687/36524 cut-off events. For 61851/61857 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 147034 event pairs, 4698 based on Foata normal form. 769/36985 useless extension candidates. Maximal degree in co-relation 74570. Up to 17662 conditions per place. [2024-10-13 12:35:22,065 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 133 selfloop transitions, 8 changer transitions 0/148 dead transitions. [2024-10-13 12:35:22,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 148 transitions, 1028 flow [2024-10-13 12:35:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-10-13 12:35:22,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125 [2024-10-13 12:35:22,068 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 252 flow. Second operand 5 states and 171 transitions. [2024-10-13 12:35:22,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 148 transitions, 1028 flow [2024-10-13 12:35:22,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 148 transitions, 1001 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:22,091 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 298 flow [2024-10-13 12:35:22,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2024-10-13 12:35:22,092 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2024-10-13 12:35:22,092 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 298 flow [2024-10-13 12:35:22,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:22,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:22,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:22,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 12:35:22,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:22,294 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:22,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:22,294 INFO L85 PathProgramCache]: Analyzing trace with hash -354479243, now seen corresponding path program 1 times [2024-10-13 12:35:22,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:22,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092102132] [2024-10-13 12:35:22,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:22,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:22,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:22,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092102132] [2024-10-13 12:35:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092102132] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054585997] [2024-10-13 12:35:22,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:22,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:22,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:22,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:22,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 12:35:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:22,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:35:22,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:35:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:22,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:35:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:22,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054585997] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:35:22,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:35:22,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 12:35:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171753293] [2024-10-13 12:35:22,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:35:22,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:35:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:35:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:35:22,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:22,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:22,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:22,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:22,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:26,105 INFO L124 PetriNetUnfolderBase]: 41227/49968 cut-off events. [2024-10-13 12:35:26,105 INFO L125 PetriNetUnfolderBase]: For 119606/119684 co-relation queries the response was YES. [2024-10-13 12:35:26,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185497 conditions, 49968 events. 41227/49968 cut-off events. For 119606/119684 co-relation queries the response was YES. Maximal size of possible extension queue 1947. Compared 225072 event pairs, 7141 based on Foata normal form. 923/50083 useless extension candidates. Maximal degree in co-relation 116907. Up to 22830 conditions per place. [2024-10-13 12:35:26,485 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 143 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2024-10-13 12:35:26,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 1187 flow [2024-10-13 12:35:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-10-13 12:35:26,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333 [2024-10-13 12:35:26,487 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 298 flow. Second operand 5 states and 161 transitions. [2024-10-13 12:35:26,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 1187 flow [2024-10-13 12:35:26,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 158 transitions, 1187 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:35:26,534 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 353 flow [2024-10-13 12:35:26,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=353, PETRI_PLACES=71, PETRI_TRANSITIONS=64} [2024-10-13 12:35:26,535 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 17 predicate places. [2024-10-13 12:35:26,535 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 353 flow [2024-10-13 12:35:26,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:26,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:26,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:26,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 12:35:26,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:26,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:26,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:26,737 INFO L85 PathProgramCache]: Analyzing trace with hash -889192730, now seen corresponding path program 1 times [2024-10-13 12:35:26,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:26,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670539629] [2024-10-13 12:35:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:26,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:26,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:26,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670539629] [2024-10-13 12:35:26,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670539629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:26,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:26,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998223323] [2024-10-13 12:35:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:26,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:26,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:26,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:26,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:26,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 64 transitions, 353 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:26,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:26,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:26,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:30,185 INFO L124 PetriNetUnfolderBase]: 40645/48942 cut-off events. [2024-10-13 12:35:30,185 INFO L125 PetriNetUnfolderBase]: For 135470/135548 co-relation queries the response was YES. [2024-10-13 12:35:30,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202750 conditions, 48942 events. 40645/48942 cut-off events. For 135470/135548 co-relation queries the response was YES. Maximal size of possible extension queue 1895. Compared 215706 event pairs, 2077 based on Foata normal form. 595/49449 useless extension candidates. Maximal degree in co-relation 127962. Up to 22248 conditions per place. [2024-10-13 12:35:30,521 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 157 selfloop transitions, 10 changer transitions 0/174 dead transitions. [2024-10-13 12:35:30,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 174 transitions, 1347 flow [2024-10-13 12:35:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:30,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-10-13 12:35:30,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-10-13 12:35:30,523 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 353 flow. Second operand 5 states and 167 transitions. [2024-10-13 12:35:30,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 174 transitions, 1347 flow [2024-10-13 12:35:30,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 174 transitions, 1347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:35:30,863 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 416 flow [2024-10-13 12:35:30,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-10-13 12:35:30,863 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 22 predicate places. [2024-10-13 12:35:30,863 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 416 flow [2024-10-13 12:35:30,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:30,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:30,864 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:30,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:35:30,867 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:30,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1818465662, now seen corresponding path program 1 times [2024-10-13 12:35:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:30,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184295421] [2024-10-13 12:35:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:30,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:31,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:31,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184295421] [2024-10-13 12:35:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184295421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:31,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:31,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022486177] [2024-10-13 12:35:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:31,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:31,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:31,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:31,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:31,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:31,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:34,751 INFO L124 PetriNetUnfolderBase]: 40187/48708 cut-off events. [2024-10-13 12:35:34,751 INFO L125 PetriNetUnfolderBase]: For 156421/156499 co-relation queries the response was YES. [2024-10-13 12:35:34,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210811 conditions, 48708 events. 40187/48708 cut-off events. For 156421/156499 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 214594 event pairs, 2107 based on Foata normal form. 471/48823 useless extension candidates. Maximal degree in co-relation 133227. Up to 21790 conditions per place. [2024-10-13 12:35:35,103 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 167 selfloop transitions, 10 changer transitions 0/184 dead transitions. [2024-10-13 12:35:35,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 184 transitions, 1560 flow [2024-10-13 12:35:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2024-10-13 12:35:35,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6625 [2024-10-13 12:35:35,105 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 416 flow. Second operand 5 states and 159 transitions. [2024-10-13 12:35:35,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 184 transitions, 1560 flow [2024-10-13 12:35:35,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 184 transitions, 1509 flow, removed 16 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:35,758 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 464 flow [2024-10-13 12:35:35,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=464, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2024-10-13 12:35:35,759 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 26 predicate places. [2024-10-13 12:35:35,759 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 464 flow [2024-10-13 12:35:35,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:35,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:35,760 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:35,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:35:35,760 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:35,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash -996657556, now seen corresponding path program 2 times [2024-10-13 12:35:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074748098] [2024-10-13 12:35:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:35,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:35,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:35,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074748098] [2024-10-13 12:35:35,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074748098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:35,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339928662] [2024-10-13 12:35:35,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:35,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:35,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:35,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:35,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 464 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:35,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:35,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:35,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:39,326 INFO L124 PetriNetUnfolderBase]: 39283/47956 cut-off events. [2024-10-13 12:35:39,326 INFO L125 PetriNetUnfolderBase]: For 152465/152543 co-relation queries the response was YES. [2024-10-13 12:35:39,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214573 conditions, 47956 events. 39283/47956 cut-off events. For 152465/152543 co-relation queries the response was YES. Maximal size of possible extension queue 1851. Compared 220485 event pairs, 6301 based on Foata normal form. 917/48365 useless extension candidates. Maximal degree in co-relation 137166. Up to 27379 conditions per place. [2024-10-13 12:35:39,669 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 160 selfloop transitions, 10 changer transitions 0/177 dead transitions. [2024-10-13 12:35:39,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 177 transitions, 1481 flow [2024-10-13 12:35:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-10-13 12:35:39,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-10-13 12:35:39,670 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 464 flow. Second operand 5 states and 156 transitions. [2024-10-13 12:35:39,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 177 transitions, 1481 flow [2024-10-13 12:35:40,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 177 transitions, 1466 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:40,219 INFO L231 Difference]: Finished difference. Result has 85 places, 77 transitions, 503 flow [2024-10-13 12:35:40,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=503, PETRI_PLACES=85, PETRI_TRANSITIONS=77} [2024-10-13 12:35:40,220 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 31 predicate places. [2024-10-13 12:35:40,220 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 77 transitions, 503 flow [2024-10-13 12:35:40,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:40,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:40,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:40,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 12:35:40,221 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:40,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash 487005157, now seen corresponding path program 2 times [2024-10-13 12:35:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875597153] [2024-10-13 12:35:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:40,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:40,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875597153] [2024-10-13 12:35:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875597153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:40,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:40,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005888676] [2024-10-13 12:35:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:40,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:40,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:40,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:40,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:40,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 77 transitions, 503 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:40,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:40,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:40,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:43,509 INFO L124 PetriNetUnfolderBase]: 35117/42710 cut-off events. [2024-10-13 12:35:43,509 INFO L125 PetriNetUnfolderBase]: For 144682/144760 co-relation queries the response was YES. [2024-10-13 12:35:43,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198670 conditions, 42710 events. 35117/42710 cut-off events. For 144682/144760 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 186825 event pairs, 2119 based on Foata normal form. 465/42819 useless extension candidates. Maximal degree in co-relation 176386. Up to 19276 conditions per place. [2024-10-13 12:35:43,904 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 169 selfloop transitions, 9 changer transitions 0/185 dead transitions. [2024-10-13 12:35:43,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 185 transitions, 1567 flow [2024-10-13 12:35:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2024-10-13 12:35:43,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6625 [2024-10-13 12:35:43,906 INFO L175 Difference]: Start difference. First operand has 85 places, 77 transitions, 503 flow. Second operand 5 states and 159 transitions. [2024-10-13 12:35:43,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 185 transitions, 1567 flow [2024-10-13 12:35:44,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 185 transitions, 1547 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-13 12:35:45,001 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 498 flow [2024-10-13 12:35:45,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2024-10-13 12:35:45,001 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 34 predicate places. [2024-10-13 12:35:45,002 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 498 flow [2024-10-13 12:35:45,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:45,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:45,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:45,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 12:35:45,002 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:45,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:45,003 INFO L85 PathProgramCache]: Analyzing trace with hash -488713583, now seen corresponding path program 2 times [2024-10-13 12:35:45,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:45,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344963485] [2024-10-13 12:35:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:45,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:45,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344963485] [2024-10-13 12:35:45,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344963485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:35:45,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:35:45,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:35:45,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381672479] [2024-10-13 12:35:45,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:35:45,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:35:45,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:45,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:35:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:35:45,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:45,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 498 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:45,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:45,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:45,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:47,606 INFO L124 PetriNetUnfolderBase]: 30549/36864 cut-off events. [2024-10-13 12:35:47,607 INFO L125 PetriNetUnfolderBase]: For 140367/140445 co-relation queries the response was YES. [2024-10-13 12:35:47,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173189 conditions, 36864 events. 30549/36864 cut-off events. For 140367/140445 co-relation queries the response was YES. Maximal size of possible extension queue 1365. Compared 155936 event pairs, 1948 based on Foata normal form. 505/37293 useless extension candidates. Maximal degree in co-relation 153253. Up to 16532 conditions per place. [2024-10-13 12:35:47,910 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 184 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2024-10-13 12:35:47,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 200 transitions, 1750 flow [2024-10-13 12:35:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-10-13 12:35:47,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-10-13 12:35:47,911 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 498 flow. Second operand 5 states and 167 transitions. [2024-10-13 12:35:47,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 200 transitions, 1750 flow [2024-10-13 12:35:48,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 200 transitions, 1713 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:48,208 INFO L231 Difference]: Finished difference. Result has 92 places, 75 transitions, 502 flow [2024-10-13 12:35:48,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=502, PETRI_PLACES=92, PETRI_TRANSITIONS=75} [2024-10-13 12:35:48,209 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 38 predicate places. [2024-10-13 12:35:48,209 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 75 transitions, 502 flow [2024-10-13 12:35:48,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:48,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:48,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:48,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 12:35:48,210 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:48,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2000641460, now seen corresponding path program 2 times [2024-10-13 12:35:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:48,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148532546] [2024-10-13 12:35:48,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:48,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:48,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148532546] [2024-10-13 12:35:48,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148532546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:48,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240542325] [2024-10-13 12:35:48,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:35:48,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:48,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:48,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 12:35:48,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:35:48,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:35:48,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:35:48,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:35:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:48,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:35:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:48,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240542325] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:35:48,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:35:48,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 12:35:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523324429] [2024-10-13 12:35:48,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:35:48,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:35:48,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:48,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:35:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:35:48,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:48,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 75 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:48,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:48,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:48,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:52,055 INFO L124 PetriNetUnfolderBase]: 29565/36036 cut-off events. [2024-10-13 12:35:52,055 INFO L125 PetriNetUnfolderBase]: For 136154/136448 co-relation queries the response was YES. [2024-10-13 12:35:52,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173761 conditions, 36036 events. 29565/36036 cut-off events. For 136154/136448 co-relation queries the response was YES. Maximal size of possible extension queue 1335. Compared 160248 event pairs, 5915 based on Foata normal form. 1033/36837 useless extension candidates. Maximal degree in co-relation 157205. Up to 19907 conditions per place. [2024-10-13 12:35:52,331 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 179 selfloop transitions, 8 changer transitions 0/194 dead transitions. [2024-10-13 12:35:52,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 194 transitions, 1685 flow [2024-10-13 12:35:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-10-13 12:35:52,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-10-13 12:35:52,332 INFO L175 Difference]: Start difference. First operand has 92 places, 75 transitions, 502 flow. Second operand 5 states and 164 transitions. [2024-10-13 12:35:52,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 194 transitions, 1685 flow [2024-10-13 12:35:52,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 194 transitions, 1676 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-13 12:35:52,534 INFO L231 Difference]: Finished difference. Result has 97 places, 78 transitions, 543 flow [2024-10-13 12:35:52,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=543, PETRI_PLACES=97, PETRI_TRANSITIONS=78} [2024-10-13 12:35:52,534 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 43 predicate places. [2024-10-13 12:35:52,535 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 78 transitions, 543 flow [2024-10-13 12:35:52,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:52,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:52,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:52,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 12:35:52,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:52,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:52,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash 956827132, now seen corresponding path program 2 times [2024-10-13 12:35:52,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:52,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069281920] [2024-10-13 12:35:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:52,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069281920] [2024-10-13 12:35:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069281920] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898584186] [2024-10-13 12:35:52,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:35:52,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:52,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:52,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:52,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 12:35:52,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:35:52,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:35:52,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:35:52,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:35:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:53,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:35:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:53,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898584186] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:35:53,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:35:53,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 12:35:53,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42862762] [2024-10-13 12:35:53,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:35:53,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:35:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:35:53,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:35:53,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:35:53,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-10-13 12:35:53,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 78 transitions, 543 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:53,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:35:53,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-10-13 12:35:53,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:35:55,853 INFO L124 PetriNetUnfolderBase]: 28729/35143 cut-off events. [2024-10-13 12:35:55,854 INFO L125 PetriNetUnfolderBase]: For 148040/148320 co-relation queries the response was YES. [2024-10-13 12:35:56,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177815 conditions, 35143 events. 28729/35143 cut-off events. For 148040/148320 co-relation queries the response was YES. Maximal size of possible extension queue 1302. Compared 159113 event pairs, 8432 based on Foata normal form. 880/35812 useless extension candidates. Maximal degree in co-relation 160981. Up to 19637 conditions per place. [2024-10-13 12:35:56,543 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 199 selfloop transitions, 8 changer transitions 0/214 dead transitions. [2024-10-13 12:35:56,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 214 transitions, 1903 flow [2024-10-13 12:35:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:35:56,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:35:56,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2024-10-13 12:35:56,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2024-10-13 12:35:56,546 INFO L175 Difference]: Start difference. First operand has 97 places, 78 transitions, 543 flow. Second operand 5 states and 172 transitions. [2024-10-13 12:35:56,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 214 transitions, 1903 flow [2024-10-13 12:35:56,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 214 transitions, 1841 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-10-13 12:35:56,815 INFO L231 Difference]: Finished difference. Result has 101 places, 81 transitions, 580 flow [2024-10-13 12:35:56,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=580, PETRI_PLACES=101, PETRI_TRANSITIONS=81} [2024-10-13 12:35:56,816 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 47 predicate places. [2024-10-13 12:35:56,816 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 81 transitions, 580 flow [2024-10-13 12:35:56,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:35:56,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:35:56,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:35:56,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 12:35:57,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 12:35:57,017 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-10-13 12:35:57,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:35:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 883086974, now seen corresponding path program 1 times [2024-10-13 12:35:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:35:57,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319115146] [2024-10-13 12:35:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:35:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:35:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:35:57,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319115146] [2024-10-13 12:35:57,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319115146] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:35:57,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358094973] [2024-10-13 12:35:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:35:57,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:35:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:35:57,756 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:35:57,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 12:35:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:35:58,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 12:35:58,021 INFO L278 TraceCheckSpWp]: Computing forward predicates...