./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/weaver/popl20-difference-det.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 74892b4fb04a6fe0e809c110df08d9da57c5c90ea65da5b04a32432686fc90f8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:37:10,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:37:10,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:37:10,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:37:10,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:37:10,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:37:10,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:37:10,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:37:10,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:37:10,546 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:37:10,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:37:10,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:37:10,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:37:10,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:37:10,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:37:10,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:37:10,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:37:10,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:37:10,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:37:10,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:37:10,553 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:37:10,553 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:37:10,553 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:37:10,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:37:10,554 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:37:10,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:37:10,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:37:10,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:37:10,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:37:10,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:37:10,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:37:10,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:37:10,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:37:10,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:37:10,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:37:10,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:37:10,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:37:10,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74892b4fb04a6fe0e809c110df08d9da57c5c90ea65da5b04a32432686fc90f8 [2024-11-17 03:37:10,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:37:10,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:37:10,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:37:10,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:37:10,789 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:37:10,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2024-11-17 03:37:12,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:37:12,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:37:12,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2024-11-17 03:37:12,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41656ebc5/1b4d8e5942974fadb41d068fb0800bbb/FLAGb081b258b [2024-11-17 03:37:12,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41656ebc5/1b4d8e5942974fadb41d068fb0800bbb [2024-11-17 03:37:12,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:37:12,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:37:12,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:37:12,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:37:12,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:37:12,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:37:12" (1/1) ... [2024-11-17 03:37:12,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfbcb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:12, skipping insertion in model container [2024-11-17 03:37:12,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:37:12" (1/1) ... [2024-11-17 03:37:12,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:37:13,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:37:13,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:37:13,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:37:13,134 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:37:13,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13 WrapperNode [2024-11-17 03:37:13,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:37:13,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:37:13,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:37:13,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:37:13,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,174 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 99 [2024-11-17 03:37:13,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:37:13,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:37:13,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:37:13,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:37:13,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,201 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]. [2024-11-17 03:37:13,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,209 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:37:13,220 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:37:13,220 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:37:13,220 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:37:13,221 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (1/1) ... [2024-11-17 03:37:13,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:37:13,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:13,252 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) [2024-11-17 03:37:13,255 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 [2024-11-17 03:37:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:37:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:37:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:37:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:37:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:37:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 03:37:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 03:37:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-17 03:37:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-17 03:37:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:37:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:37:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:37:13,297 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:37:13,378 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:37:13,380 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:37:13,555 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:37:13,555 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:37:13,650 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:37:13,651 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:37:13,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:37:13 BoogieIcfgContainer [2024-11-17 03:37:13,651 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:37:13,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:37:13,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:37:13,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:37:13,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:37:12" (1/3) ... [2024-11-17 03:37:13,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c45cb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:37:13, skipping insertion in model container [2024-11-17 03:37:13,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:13" (2/3) ... [2024-11-17 03:37:13,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c45cb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:37:13, skipping insertion in model container [2024-11-17 03:37:13,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:37:13" (3/3) ... [2024-11-17 03:37:13,658 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2024-11-17 03:37:13,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:37:13,671 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:37:13,671 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:37:13,712 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 03:37:13,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 136 flow [2024-11-17 03:37:13,776 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2024-11-17 03:37:13,776 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:37:13,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 8/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-17 03:37:13,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 54 transitions, 136 flow [2024-11-17 03:37:13,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 49 transitions, 122 flow [2024-11-17 03:37:13,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:37:13,796 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;@460de0f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:37:13,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:37:13,810 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:37:13,810 INFO L124 PetriNetUnfolderBase]: 8/46 cut-off events. [2024-11-17 03:37:13,810 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:37:13,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:13,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:13,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:13,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:13,822 INFO L85 PathProgramCache]: Analyzing trace with hash -868378489, now seen corresponding path program 1 times [2024-11-17 03:37:13,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:13,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289118423] [2024-11-17 03:37:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:13,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:14,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:14,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289118423] [2024-11-17 03:37:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289118423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:14,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:14,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:14,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625011795] [2024-11-17 03:37:14,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:14,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:37:14,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:37:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:37:14,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-17 03:37:14,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-17 03:37:14,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:14,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-17 03:37:14,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:14,524 INFO L124 PetriNetUnfolderBase]: 3714/5070 cut-off events. [2024-11-17 03:37:14,524 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-17 03:37:14,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10262 conditions, 5070 events. 3714/5070 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 26353 event pairs, 2787 based on Foata normal form. 928/5705 useless extension candidates. Maximal degree in co-relation 9179. Up to 4851 conditions per place. [2024-11-17 03:37:14,562 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 32 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2024-11-17 03:37:14,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 174 flow [2024-11-17 03:37:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:37:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:37:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 69 transitions. [2024-11-17 03:37:14,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-17 03:37:14,598 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 122 flow. Second operand 2 states and 69 transitions. [2024-11-17 03:37:14,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 174 flow [2024-11-17 03:37:14,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 158 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-17 03:37:14,613 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 94 flow [2024-11-17 03:37:14,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2024-11-17 03:37:14,621 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2024-11-17 03:37:14,625 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 94 flow [2024-11-17 03:37:14,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-17 03:37:14,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:14,626 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] [2024-11-17 03:37:14,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:37:14,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:14,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1452154489, now seen corresponding path program 1 times [2024-11-17 03:37:14,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711425129] [2024-11-17 03:37:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711425129] [2024-11-17 03:37:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711425129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:14,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:14,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312203778] [2024-11-17 03:37:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:14,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:37:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:37:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:37:14,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-17 03:37:14,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:14,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:14,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-17 03:37:14,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:15,473 INFO L124 PetriNetUnfolderBase]: 5145/7334 cut-off events. [2024-11-17 03:37:15,474 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-17 03:37:15,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14218 conditions, 7334 events. 5145/7334 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 41778 event pairs, 1020 based on Foata normal form. 1/7017 useless extension candidates. Maximal degree in co-relation 14215. Up to 5288 conditions per place. [2024-11-17 03:37:15,512 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 51 selfloop transitions, 5 changer transitions 1/68 dead transitions. [2024-11-17 03:37:15,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 68 transitions, 265 flow [2024-11-17 03:37:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:37:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:37:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-17 03:37:15,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2024-11-17 03:37:15,515 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 94 flow. Second operand 3 states and 106 transitions. [2024-11-17 03:37:15,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 68 transitions, 265 flow [2024-11-17 03:37:15,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:15,521 INFO L231 Difference]: Finished difference. Result has 48 places, 47 transitions, 127 flow [2024-11-17 03:37:15,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=48, PETRI_TRANSITIONS=47} [2024-11-17 03:37:15,522 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2024-11-17 03:37:15,523 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 47 transitions, 127 flow [2024-11-17 03:37:15,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:15,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:15,524 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:15,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:37:15,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:15,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash -124376617, now seen corresponding path program 1 times [2024-11-17 03:37:15,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:15,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271044343] [2024-11-17 03:37:15,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:15,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271044343] [2024-11-17 03:37:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271044343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:15,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134930471] [2024-11-17 03:37:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:15,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:15,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-11-17 03:37:15,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 47 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:15,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:15,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-11-17 03:37:15,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:17,193 INFO L124 PetriNetUnfolderBase]: 18478/25092 cut-off events. [2024-11-17 03:37:17,194 INFO L125 PetriNetUnfolderBase]: For 3468/3540 co-relation queries the response was YES. [2024-11-17 03:37:17,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55019 conditions, 25092 events. 18478/25092 cut-off events. For 3468/3540 co-relation queries the response was YES. Maximal size of possible extension queue 1390. Compared 153688 event pairs, 4782 based on Foata normal form. 0/23585 useless extension candidates. Maximal degree in co-relation 55014. Up to 11128 conditions per place. [2024-11-17 03:37:17,407 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 132 selfloop transitions, 15 changer transitions 0/155 dead transitions. [2024-11-17 03:37:17,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 155 transitions, 722 flow [2024-11-17 03:37:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:37:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:37:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 208 transitions. [2024-11-17 03:37:17,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2024-11-17 03:37:17,411 INFO L175 Difference]: Start difference. First operand has 48 places, 47 transitions, 127 flow. Second operand 6 states and 208 transitions. [2024-11-17 03:37:17,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 155 transitions, 722 flow [2024-11-17 03:37:17,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 155 transitions, 702 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:37:17,418 INFO L231 Difference]: Finished difference. Result has 56 places, 61 transitions, 225 flow [2024-11-17 03:37:17,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=56, PETRI_TRANSITIONS=61} [2024-11-17 03:37:17,420 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-17 03:37:17,420 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 61 transitions, 225 flow [2024-11-17 03:37:17,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:17,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:17,420 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:17,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:37:17,422 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:17,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash 580129697, now seen corresponding path program 2 times [2024-11-17 03:37:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654513203] [2024-11-17 03:37:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:17,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:17,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654513203] [2024-11-17 03:37:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654513203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:17,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:17,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483005476] [2024-11-17 03:37:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:17,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:17,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:17,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:37:17,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 61 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:37:17,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:17,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:37:17,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:19,712 INFO L124 PetriNetUnfolderBase]: 32830/44080 cut-off events. [2024-11-17 03:37:19,712 INFO L125 PetriNetUnfolderBase]: For 26746/26746 co-relation queries the response was YES. [2024-11-17 03:37:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116839 conditions, 44080 events. 32830/44080 cut-off events. For 26746/26746 co-relation queries the response was YES. Maximal size of possible extension queue 2102. Compared 279976 event pairs, 10874 based on Foata normal form. 312/43506 useless extension candidates. Maximal degree in co-relation 116830. Up to 21241 conditions per place. [2024-11-17 03:37:19,940 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 114 selfloop transitions, 18 changer transitions 0/139 dead transitions. [2024-11-17 03:37:19,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 139 transitions, 750 flow [2024-11-17 03:37:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:37:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:37:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-17 03:37:19,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-11-17 03:37:19,946 INFO L175 Difference]: Start difference. First operand has 56 places, 61 transitions, 225 flow. Second operand 5 states and 166 transitions. [2024-11-17 03:37:19,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 139 transitions, 750 flow [2024-11-17 03:37:20,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 139 transitions, 750 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:20,025 INFO L231 Difference]: Finished difference. Result has 63 places, 73 transitions, 361 flow [2024-11-17 03:37:20,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=361, PETRI_PLACES=63, PETRI_TRANSITIONS=73} [2024-11-17 03:37:20,026 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 9 predicate places. [2024-11-17 03:37:20,026 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 73 transitions, 361 flow [2024-11-17 03:37:20,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-17 03:37:20,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:20,027 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:20,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:37:20,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:20,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:20,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1769560013, now seen corresponding path program 3 times [2024-11-17 03:37:20,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:20,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201937960] [2024-11-17 03:37:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:20,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:20,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201937960] [2024-11-17 03:37:20,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201937960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:20,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23685620] [2024-11-17 03:37:20,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:37:20,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:20,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:20,094 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) [2024-11-17 03:37:20,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:37:20,160 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-17 03:37:20,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:20,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:20,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:20,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:20,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23685620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:20,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:20,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-17 03:37:20,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143371793] [2024-11-17 03:37:20,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:20,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 03:37:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 03:37:20,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-17 03:37:20,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:37:20,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 73 transitions, 361 flow. Second operand has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 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) [2024-11-17 03:37:20,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:20,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:37:20,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:24,111 INFO L124 PetriNetUnfolderBase]: 39986/53740 cut-off events. [2024-11-17 03:37:24,111 INFO L125 PetriNetUnfolderBase]: For 60247/60327 co-relation queries the response was YES. [2024-11-17 03:37:24,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160043 conditions, 53740 events. 39986/53740 cut-off events. For 60247/60327 co-relation queries the response was YES. Maximal size of possible extension queue 2578. Compared 347747 event pairs, 3103 based on Foata normal form. 486/53903 useless extension candidates. Maximal degree in co-relation 160030. Up to 9399 conditions per place. [2024-11-17 03:37:24,417 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 281 selfloop transitions, 53 changer transitions 0/341 dead transitions. [2024-11-17 03:37:24,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 341 transitions, 1967 flow [2024-11-17 03:37:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:37:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 03:37:24,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 446 transitions. [2024-11-17 03:37:24,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58994708994709 [2024-11-17 03:37:24,419 INFO L175 Difference]: Start difference. First operand has 63 places, 73 transitions, 361 flow. Second operand 14 states and 446 transitions. [2024-11-17 03:37:24,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 341 transitions, 1967 flow [2024-11-17 03:37:24,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 341 transitions, 1955 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:24,844 INFO L231 Difference]: Finished difference. Result has 82 places, 108 transitions, 770 flow [2024-11-17 03:37:24,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=770, PETRI_PLACES=82, PETRI_TRANSITIONS=108} [2024-11-17 03:37:24,844 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 28 predicate places. [2024-11-17 03:37:24,844 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 108 transitions, 770 flow [2024-11-17 03:37:24,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.555555555555557) internal successors, (149), 9 states have internal predecessors, (149), 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) [2024-11-17 03:37:24,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:24,845 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:24,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 03:37:25,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:25,050 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:25,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:25,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1666479217, now seen corresponding path program 4 times [2024-11-17 03:37:25,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:25,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506010419] [2024-11-17 03:37:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:25,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:25,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506010419] [2024-11-17 03:37:25,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506010419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:25,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:25,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182652462] [2024-11-17 03:37:25,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:25,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:25,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:25,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-17 03:37:25,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 108 transitions, 770 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-17 03:37:25,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:25,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-17 03:37:25,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:28,432 INFO L124 PetriNetUnfolderBase]: 35350/48794 cut-off events. [2024-11-17 03:37:28,432 INFO L125 PetriNetUnfolderBase]: For 126142/127508 co-relation queries the response was YES. [2024-11-17 03:37:28,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167167 conditions, 48794 events. 35350/48794 cut-off events. For 126142/127508 co-relation queries the response was YES. Maximal size of possible extension queue 2492. Compared 328273 event pairs, 9126 based on Foata normal form. 492/47718 useless extension candidates. Maximal degree in co-relation 167147. Up to 18220 conditions per place. [2024-11-17 03:37:28,803 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 176 selfloop transitions, 29 changer transitions 0/224 dead transitions. [2024-11-17 03:37:28,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 224 transitions, 1661 flow [2024-11-17 03:37:28,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:37:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:37:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-11-17 03:37:28,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6084656084656085 [2024-11-17 03:37:28,805 INFO L175 Difference]: Start difference. First operand has 82 places, 108 transitions, 770 flow. Second operand 7 states and 230 transitions. [2024-11-17 03:37:28,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 224 transitions, 1661 flow [2024-11-17 03:37:29,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 224 transitions, 1623 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:29,316 INFO L231 Difference]: Finished difference. Result has 93 places, 114 transitions, 903 flow [2024-11-17 03:37:29,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=903, PETRI_PLACES=93, PETRI_TRANSITIONS=114} [2024-11-17 03:37:29,317 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 39 predicate places. [2024-11-17 03:37:29,317 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 114 transitions, 903 flow [2024-11-17 03:37:29,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-17 03:37:29,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:29,318 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:29,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:37:29,318 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:29,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash -397485323, now seen corresponding path program 5 times [2024-11-17 03:37:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:29,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683713266] [2024-11-17 03:37:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:29,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683713266] [2024-11-17 03:37:29,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683713266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:29,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707718963] [2024-11-17 03:37:29,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 03:37:29,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:29,379 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) [2024-11-17 03:37:29,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:37:29,433 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:29,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:29,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:29,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:29,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707718963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:29,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:29,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-17 03:37:29,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920840248] [2024-11-17 03:37:29,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:29,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 03:37:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 03:37:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:37:29,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:37:29,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 114 transitions, 903 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 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) [2024-11-17 03:37:29,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:29,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:37:29,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:34,722 INFO L124 PetriNetUnfolderBase]: 52262/70630 cut-off events. [2024-11-17 03:37:34,722 INFO L125 PetriNetUnfolderBase]: For 187309/187509 co-relation queries the response was YES. [2024-11-17 03:37:34,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243430 conditions, 70630 events. 52262/70630 cut-off events. For 187309/187509 co-relation queries the response was YES. Maximal size of possible extension queue 3324. Compared 476780 event pairs, 4900 based on Foata normal form. 758/70990 useless extension candidates. Maximal degree in co-relation 243404. Up to 12615 conditions per place. [2024-11-17 03:37:35,468 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 326 selfloop transitions, 81 changer transitions 0/414 dead transitions. [2024-11-17 03:37:35,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 414 transitions, 2838 flow [2024-11-17 03:37:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 03:37:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 03:37:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 537 transitions. [2024-11-17 03:37:35,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5849673202614379 [2024-11-17 03:37:35,471 INFO L175 Difference]: Start difference. First operand has 93 places, 114 transitions, 903 flow. Second operand 17 states and 537 transitions. [2024-11-17 03:37:35,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 414 transitions, 2838 flow [2024-11-17 03:37:36,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 414 transitions, 2795 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-17 03:37:36,749 INFO L231 Difference]: Finished difference. Result has 119 places, 142 transitions, 1454 flow [2024-11-17 03:37:36,749 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1454, PETRI_PLACES=119, PETRI_TRANSITIONS=142} [2024-11-17 03:37:36,751 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 65 predicate places. [2024-11-17 03:37:36,751 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 142 transitions, 1454 flow [2024-11-17 03:37:36,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 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) [2024-11-17 03:37:36,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:36,752 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:36,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:37:36,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-17 03:37:36,953 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:36,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1951766755, now seen corresponding path program 1 times [2024-11-17 03:37:36,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:36,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034043953] [2024-11-17 03:37:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:36,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:37,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:37,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034043953] [2024-11-17 03:37:37,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034043953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:37,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:37,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:37,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075813938] [2024-11-17 03:37:37,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:37,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:37:37,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:37,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:37:37,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:37:37,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-17 03:37:37,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 142 transitions, 1454 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 03:37:37,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:37,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-17 03:37:37,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:40,088 INFO L124 PetriNetUnfolderBase]: 26448/38294 cut-off events. [2024-11-17 03:37:40,088 INFO L125 PetriNetUnfolderBase]: For 191058/194206 co-relation queries the response was YES. [2024-11-17 03:37:40,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150189 conditions, 38294 events. 26448/38294 cut-off events. For 191058/194206 co-relation queries the response was YES. Maximal size of possible extension queue 2011. Compared 278483 event pairs, 8947 based on Foata normal form. 966/37174 useless extension candidates. Maximal degree in co-relation 150153. Up to 24392 conditions per place. [2024-11-17 03:37:40,446 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 129 selfloop transitions, 3 changer transitions 0/170 dead transitions. [2024-11-17 03:37:40,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 170 transitions, 1882 flow [2024-11-17 03:37:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:37:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:37:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-17 03:37:40,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2024-11-17 03:37:40,448 INFO L175 Difference]: Start difference. First operand has 119 places, 142 transitions, 1454 flow. Second operand 3 states and 106 transitions. [2024-11-17 03:37:40,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 170 transitions, 1882 flow [2024-11-17 03:37:41,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 170 transitions, 1816 flow, removed 33 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:41,507 INFO L231 Difference]: Finished difference. Result has 122 places, 142 transitions, 1403 flow [2024-11-17 03:37:41,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1386, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1403, PETRI_PLACES=122, PETRI_TRANSITIONS=142} [2024-11-17 03:37:41,507 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 68 predicate places. [2024-11-17 03:37:41,507 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 142 transitions, 1403 flow [2024-11-17 03:37:41,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 03:37:41,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:41,508 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:41,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:37:41,508 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash 466860385, now seen corresponding path program 1 times [2024-11-17 03:37:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720521342] [2024-11-17 03:37:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:41,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:41,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720521342] [2024-11-17 03:37:41,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720521342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:41,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:41,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:41,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92661480] [2024-11-17 03:37:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:41,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:41,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:41,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-17 03:37:41,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 142 transitions, 1403 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-17 03:37:41,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:41,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-17 03:37:41,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:46,096 INFO L124 PetriNetUnfolderBase]: 37047/51120 cut-off events. [2024-11-17 03:37:46,097 INFO L125 PetriNetUnfolderBase]: For 199379/200586 co-relation queries the response was YES. [2024-11-17 03:37:46,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194310 conditions, 51120 events. 37047/51120 cut-off events. For 199379/200586 co-relation queries the response was YES. Maximal size of possible extension queue 2584. Compared 351478 event pairs, 10115 based on Foata normal form. 538/49966 useless extension candidates. Maximal degree in co-relation 194272. Up to 31845 conditions per place. [2024-11-17 03:37:46,524 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 194 selfloop transitions, 33 changer transitions 0/245 dead transitions. [2024-11-17 03:37:46,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 245 transitions, 2294 flow [2024-11-17 03:37:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:37:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:37:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-11-17 03:37:46,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-11-17 03:37:46,526 INFO L175 Difference]: Start difference. First operand has 122 places, 142 transitions, 1403 flow. Second operand 7 states and 228 transitions. [2024-11-17 03:37:46,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 245 transitions, 2294 flow [2024-11-17 03:37:48,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 245 transitions, 2291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:37:48,096 INFO L231 Difference]: Finished difference. Result has 131 places, 147 transitions, 1571 flow [2024-11-17 03:37:48,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1571, PETRI_PLACES=131, PETRI_TRANSITIONS=147} [2024-11-17 03:37:48,098 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 77 predicate places. [2024-11-17 03:37:48,099 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 147 transitions, 1571 flow [2024-11-17 03:37:48,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-17 03:37:48,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:48,099 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:48,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:37:48,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:48,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:48,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1553519017, now seen corresponding path program 2 times [2024-11-17 03:37:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:48,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211380637] [2024-11-17 03:37:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:48,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:48,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211380637] [2024-11-17 03:37:48,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211380637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:48,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889717513] [2024-11-17 03:37:48,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:37:48,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:48,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:48,238 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) [2024-11-17 03:37:48,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:37:48,297 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:48,297 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:48,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:48,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:48,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:48,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889717513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:48,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:48,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-17 03:37:48,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028702202] [2024-11-17 03:37:48,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:48,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 03:37:48,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 03:37:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-17 03:37:48,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:37:48,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 147 transitions, 1571 flow. Second operand has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 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) [2024-11-17 03:37:48,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:48,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:37:48,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:54,423 INFO L124 PetriNetUnfolderBase]: 44299/60434 cut-off events. [2024-11-17 03:37:54,423 INFO L125 PetriNetUnfolderBase]: For 293798/293798 co-relation queries the response was YES. [2024-11-17 03:37:54,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239236 conditions, 60434 events. 44299/60434 cut-off events. For 293798/293798 co-relation queries the response was YES. Maximal size of possible extension queue 2962. Compared 407849 event pairs, 3933 based on Foata normal form. 270/60530 useless extension candidates. Maximal degree in co-relation 239194. Up to 12401 conditions per place. [2024-11-17 03:37:55,044 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 302 selfloop transitions, 100 changer transitions 0/409 dead transitions. [2024-11-17 03:37:55,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 409 transitions, 3721 flow [2024-11-17 03:37:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:37:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 03:37:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 434 transitions. [2024-11-17 03:37:55,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-11-17 03:37:55,046 INFO L175 Difference]: Start difference. First operand has 131 places, 147 transitions, 1571 flow. Second operand 14 states and 434 transitions. [2024-11-17 03:37:55,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 409 transitions, 3721 flow [2024-11-17 03:37:58,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 409 transitions, 3679 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-17 03:37:58,057 INFO L231 Difference]: Finished difference. Result has 148 places, 185 transitions, 2309 flow [2024-11-17 03:37:58,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2309, PETRI_PLACES=148, PETRI_TRANSITIONS=185} [2024-11-17 03:37:58,058 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 94 predicate places. [2024-11-17 03:37:58,058 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 185 transitions, 2309 flow [2024-11-17 03:37:58,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.11111111111111) internal successors, (154), 9 states have internal predecessors, (154), 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) [2024-11-17 03:37:58,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:58,059 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:58,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 03:37:58,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:58,259 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:37:58,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2122790483, now seen corresponding path program 1 times [2024-11-17 03:37:58,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:58,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130925506] [2024-11-17 03:37:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:58,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:58,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:58,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130925506] [2024-11-17 03:37:58,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130925506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:58,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:58,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111672787] [2024-11-17 03:37:58,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:58,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:37:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:58,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:37:58,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:37:58,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-17 03:37:58,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 185 transitions, 2309 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 03:37:58,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:58,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-17 03:37:58,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:38:01,422 INFO L124 PetriNetUnfolderBase]: 21857/31968 cut-off events. [2024-11-17 03:38:01,423 INFO L125 PetriNetUnfolderBase]: For 230524/232687 co-relation queries the response was YES. [2024-11-17 03:38:01,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142814 conditions, 31968 events. 21857/31968 cut-off events. For 230524/232687 co-relation queries the response was YES. Maximal size of possible extension queue 1647. Compared 228337 event pairs, 5392 based on Foata normal form. 862/31602 useless extension candidates. Maximal degree in co-relation 142767. Up to 19159 conditions per place. [2024-11-17 03:38:01,808 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 146 selfloop transitions, 3 changer transitions 11/217 dead transitions. [2024-11-17 03:38:01,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 217 transitions, 2893 flow [2024-11-17 03:38:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:38:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:38:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-17 03:38:01,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-17 03:38:01,810 INFO L175 Difference]: Start difference. First operand has 148 places, 185 transitions, 2309 flow. Second operand 3 states and 102 transitions. [2024-11-17 03:38:01,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 217 transitions, 2893 flow [2024-11-17 03:38:03,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 217 transitions, 2726 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-11-17 03:38:03,205 INFO L231 Difference]: Finished difference. Result has 149 places, 175 transitions, 1982 flow [2024-11-17 03:38:03,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=2142, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1982, PETRI_PLACES=149, PETRI_TRANSITIONS=175} [2024-11-17 03:38:03,206 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 95 predicate places. [2024-11-17 03:38:03,206 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 175 transitions, 1982 flow [2024-11-17 03:38:03,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 03:38:03,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:38:03,207 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:38:03,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 03:38:03,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:38:03,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:38:03,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1999472069, now seen corresponding path program 3 times [2024-11-17 03:38:03,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:38:03,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643856461] [2024-11-17 03:38:03,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:38:03,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:38:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:38:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:38:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643856461] [2024-11-17 03:38:03,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643856461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:38:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035314741] [2024-11-17 03:38:03,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:38:03,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:03,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:38:03,266 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) [2024-11-17 03:38:03,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:38:03,315 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-17 03:38:03,316 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:38:03,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:38:03,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:38:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:03,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:38:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:03,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035314741] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:38:03,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:38:03,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-17 03:38:03,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791517974] [2024-11-17 03:38:03,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:38:03,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 03:38:03,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:38:03,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 03:38:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:38:03,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:38:03,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 175 transitions, 1982 flow. Second operand has 11 states, 11 states have (on average 16.90909090909091) internal successors, (186), 11 states have internal predecessors, (186), 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) [2024-11-17 03:38:03,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:38:03,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:38:03,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand