./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-easy6.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:55:21,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:55:21,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:55:21,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:55:21,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:55:21,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:55:21,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:55:21,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:55:21,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:55:21,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:55:21,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:55:21,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:55:21,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:55:21,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:55:21,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:55:21,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:55:21,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:55:21,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:55:21,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:55:21,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:55:21,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:55:21,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:55:21,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:55:21,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:55:21,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:55:21,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:55:21,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:55:21,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:55:21,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:55:21,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:55:21,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:55:21,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:55:21,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:55:21,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:55:21,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:55:21,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:55:21,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:55:21,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:55:21,491 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:55:21,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:55:21,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:55:21,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:55:21,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 [2024-11-19 01:55:21,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:55:21,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:55:21,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:55:21,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:55:21,741 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:55:21,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-19 01:55:23,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:55:23,362 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:55:23,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-19 01:55:23,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8de5f6ec/a92fa349e1d84138bbce112ec2a3f8c7/FLAG24a0ce878 [2024-11-19 01:55:23,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8de5f6ec/a92fa349e1d84138bbce112ec2a3f8c7 [2024-11-19 01:55:23,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:55:23,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:55:23,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:55:23,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:55:23,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:55:23,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:23" (1/1) ... [2024-11-19 01:55:23,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbe1543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:23, skipping insertion in model container [2024-11-19 01:55:23,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:23" (1/1) ... [2024-11-19 01:55:23,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:55:23,997 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c[2032,2045] [2024-11-19 01:55:24,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:55:24,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:55:24,026 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c[2032,2045] [2024-11-19 01:55:24,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:55:24,041 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:55:24,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24 WrapperNode [2024-11-19 01:55:24,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:55:24,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:55:24,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:55:24,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:55:24,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,075 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 92 [2024-11-19 01:55:24,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:55:24,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:55:24,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:55:24,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:55:24,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,098 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]. [2024-11-19 01:55:24,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:55:24,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:55:24,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:55:24,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:55:24,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (1/1) ... [2024-11-19 01:55:24,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:55:24,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:55:24,139 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) [2024-11-19 01:55:24,142 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 [2024-11-19 01:55:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:55:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 01:55:24,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 01:55:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 01:55:24,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 01:55:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:55:24,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:55:24,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:55:24,207 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:55:24,308 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:55:24,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:55:24,536 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:55:24,536 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:55:24,694 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:55:24,694 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:55:24,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:24 BoogieIcfgContainer [2024-11-19 01:55:24,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:55:24,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:55:24,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:55:24,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:55:24,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:55:23" (1/3) ... [2024-11-19 01:55:24,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2813d880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:24, skipping insertion in model container [2024-11-19 01:55:24,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:24" (2/3) ... [2024-11-19 01:55:24,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2813d880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:24, skipping insertion in model container [2024-11-19 01:55:24,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:24" (3/3) ... [2024-11-19 01:55:24,705 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-11-19 01:55:24,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:55:24,723 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:55:24,723 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:55:24,771 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 01:55:24,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 32 transitions, 78 flow [2024-11-19 01:55:24,848 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-19 01:55:24,850 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:55:24,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 0/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-19 01:55:24,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 32 transitions, 78 flow [2024-11-19 01:55:24,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 70 flow [2024-11-19 01:55:24,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:55:24,877 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=LoopHeads, 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;@13524c93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:55:24,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-19 01:55:24,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:55:24,897 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-19 01:55:24,897 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:55:24,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:24,898 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] [2024-11-19 01:55:24,898 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:24,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1238947515, now seen corresponding path program 1 times [2024-11-19 01:55:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439858873] [2024-11-19 01:55:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:55:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:25,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:25,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439858873] [2024-11-19 01:55:25,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439858873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:25,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:25,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:25,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984181048] [2024-11-19 01:55:25,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:25,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:25,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:25,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:25,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2024-11-19 01:55:25,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 70 flow. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 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) [2024-11-19 01:55:25,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:25,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2024-11-19 01:55:25,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:25,802 INFO L124 PetriNetUnfolderBase]: 92/254 cut-off events. [2024-11-19 01:55:25,802 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-19 01:55:25,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 92/254 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1172 event pairs, 20 based on Foata normal form. 1/246 useless extension candidates. Maximal degree in co-relation 405. Up to 55 conditions per place. [2024-11-19 01:55:25,808 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 28 selfloop transitions, 6 changer transitions 13/60 dead transitions. [2024-11-19 01:55:25,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 60 transitions, 250 flow [2024-11-19 01:55:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:55:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:55:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2024-11-19 01:55:25,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6830357142857143 [2024-11-19 01:55:25,821 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 70 flow. Second operand 7 states and 153 transitions. [2024-11-19 01:55:25,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 60 transitions, 250 flow [2024-11-19 01:55:25,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 01:55:25,828 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 97 flow [2024-11-19 01:55:25,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-19 01:55:25,838 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-11-19 01:55:25,838 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 97 flow [2024-11-19 01:55:25,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 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) [2024-11-19 01:55:25,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:25,838 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] [2024-11-19 01:55:25,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:55:25,839 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash 293975081, now seen corresponding path program 2 times [2024-11-19 01:55:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135817666] [2024-11-19 01:55:25,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:25,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:25,858 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:25,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135817666] [2024-11-19 01:55:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135817666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135233205] [2024-11-19 01:55:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:26,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-19 01:55:26,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:26,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:26,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-19 01:55:26,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:26,270 INFO L124 PetriNetUnfolderBase]: 229/581 cut-off events. [2024-11-19 01:55:26,272 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-19 01:55:26,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 581 events. 229/581 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3166 event pairs, 51 based on Foata normal form. 4/573 useless extension candidates. Maximal degree in co-relation 1125. Up to 143 conditions per place. [2024-11-19 01:55:26,278 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 37 selfloop transitions, 11 changer transitions 10/73 dead transitions. [2024-11-19 01:55:26,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 300 flow [2024-11-19 01:55:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:55:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:55:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 176 transitions. [2024-11-19 01:55:26,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-19 01:55:26,282 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 97 flow. Second operand 9 states and 176 transitions. [2024-11-19 01:55:26,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 300 flow [2024-11-19 01:55:26,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 296 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 01:55:26,287 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 169 flow [2024-11-19 01:55:26,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=169, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-19 01:55:26,290 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-11-19 01:55:26,290 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 169 flow [2024-11-19 01:55:26,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:26,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:26,291 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] [2024-11-19 01:55:26,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:55:26,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:26,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash -329664591, now seen corresponding path program 3 times [2024-11-19 01:55:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:26,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604042644] [2024-11-19 01:55:26,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:55:26,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:26,305 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:55:26,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:26,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:26,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604042644] [2024-11-19 01:55:26,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604042644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:26,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:26,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:55:26,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353651026] [2024-11-19 01:55:26,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:26,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:26,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:26,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:26,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:26,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2024-11-19 01:55:26,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-19 01:55:26,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:26,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2024-11-19 01:55:26,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:26,439 INFO L124 PetriNetUnfolderBase]: 111/400 cut-off events. [2024-11-19 01:55:26,440 INFO L125 PetriNetUnfolderBase]: For 187/191 co-relation queries the response was YES. [2024-11-19 01:55:26,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 400 events. 111/400 cut-off events. For 187/191 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2354 event pairs, 88 based on Foata normal form. 9/381 useless extension candidates. Maximal degree in co-relation 757. Up to 215 conditions per place. [2024-11-19 01:55:26,447 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 16 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-11-19 01:55:26,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 214 flow [2024-11-19 01:55:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:26,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-19 01:55:26,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-19 01:55:26,451 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 169 flow. Second operand 3 states and 70 transitions. [2024-11-19 01:55:26,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 214 flow [2024-11-19 01:55:26,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 212 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 01:55:26,486 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 175 flow [2024-11-19 01:55:26,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-19 01:55:26,487 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-11-19 01:55:26,487 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 175 flow [2024-11-19 01:55:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-19 01:55:26,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:26,487 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] [2024-11-19 01:55:26,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:55:26,488 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:26,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1727786543, now seen corresponding path program 4 times [2024-11-19 01:55:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:26,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133869620] [2024-11-19 01:55:26,489 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:55:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:26,512 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:55:26,512 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:26,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:26,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133869620] [2024-11-19 01:55:26,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133869620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:26,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:26,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854137940] [2024-11-19 01:55:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:26,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:26,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:26,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2024-11-19 01:55:26,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 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) [2024-11-19 01:55:26,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:26,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2024-11-19 01:55:26,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:26,810 INFO L124 PetriNetUnfolderBase]: 183/480 cut-off events. [2024-11-19 01:55:26,810 INFO L125 PetriNetUnfolderBase]: For 282/286 co-relation queries the response was YES. [2024-11-19 01:55:26,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 480 events. 183/480 cut-off events. For 282/286 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2610 event pairs, 51 based on Foata normal form. 6/467 useless extension candidates. Maximal degree in co-relation 637. Up to 114 conditions per place. [2024-11-19 01:55:26,813 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 20 selfloop transitions, 5 changer transitions 13/59 dead transitions. [2024-11-19 01:55:26,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 296 flow [2024-11-19 01:55:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:55:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:55:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2024-11-19 01:55:26,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-19 01:55:26,816 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 175 flow. Second operand 7 states and 144 transitions. [2024-11-19 01:55:26,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 296 flow [2024-11-19 01:55:26,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:26,820 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 174 flow [2024-11-19 01:55:26,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-19 01:55:26,821 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2024-11-19 01:55:26,821 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 174 flow [2024-11-19 01:55:26,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 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) [2024-11-19 01:55:26,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:26,822 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] [2024-11-19 01:55:26,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:55:26,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:26,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2134267619, now seen corresponding path program 5 times [2024-11-19 01:55:26,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:26,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047719086] [2024-11-19 01:55:26,823 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:55:26,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:26,834 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:26,835 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:26,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:26,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047719086] [2024-11-19 01:55:26,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047719086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:26,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:26,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:26,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121383144] [2024-11-19 01:55:26,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:26,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:26,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:26,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:26,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-19 01:55:26,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:26,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:26,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-19 01:55:26,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:27,205 INFO L124 PetriNetUnfolderBase]: 194/514 cut-off events. [2024-11-19 01:55:27,206 INFO L125 PetriNetUnfolderBase]: For 490/511 co-relation queries the response was YES. [2024-11-19 01:55:27,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 514 events. 194/514 cut-off events. For 490/511 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2706 event pairs, 62 based on Foata normal form. 25/525 useless extension candidates. Maximal degree in co-relation 1324. Up to 146 conditions per place. [2024-11-19 01:55:27,210 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 37 selfloop transitions, 8 changer transitions 10/68 dead transitions. [2024-11-19 01:55:27,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 370 flow [2024-11-19 01:55:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:55:27,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:55:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2024-11-19 01:55:27,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-19 01:55:27,213 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 174 flow. Second operand 8 states and 160 transitions. [2024-11-19 01:55:27,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 370 flow [2024-11-19 01:55:27,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 353 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 01:55:27,218 INFO L231 Difference]: Finished difference. Result has 57 places, 37 transitions, 167 flow [2024-11-19 01:55:27,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=57, PETRI_TRANSITIONS=37} [2024-11-19 01:55:27,219 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2024-11-19 01:55:27,219 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 37 transitions, 167 flow [2024-11-19 01:55:27,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:27,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:27,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:27,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:55:27,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:27,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:27,225 INFO L85 PathProgramCache]: Analyzing trace with hash -777597203, now seen corresponding path program 6 times [2024-11-19 01:55:27,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:27,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37856958] [2024-11-19 01:55:27,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:55:27,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:27,240 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 01:55:27,241 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:27,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37856958] [2024-11-19 01:55:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37856958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:27,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:27,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:55:27,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060623061] [2024-11-19 01:55:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:27,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:27,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:27,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 32 [2024-11-19 01:55:27,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 37 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-19 01:55:27,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:27,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 32 [2024-11-19 01:55:27,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:27,350 INFO L124 PetriNetUnfolderBase]: 72/282 cut-off events. [2024-11-19 01:55:27,350 INFO L125 PetriNetUnfolderBase]: For 236/240 co-relation queries the response was YES. [2024-11-19 01:55:27,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 282 events. 72/282 cut-off events. For 236/240 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1508 event pairs, 71 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 410. Up to 175 conditions per place. [2024-11-19 01:55:27,352 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 13 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-11-19 01:55:27,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 199 flow [2024-11-19 01:55:27,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-19 01:55:27,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2024-11-19 01:55:27,353 INFO L175 Difference]: Start difference. First operand has 57 places, 37 transitions, 167 flow. Second operand 3 states and 67 transitions. [2024-11-19 01:55:27,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 199 flow [2024-11-19 01:55:27,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 38 transitions, 176 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-19 01:55:27,355 INFO L231 Difference]: Finished difference. Result has 52 places, 37 transitions, 152 flow [2024-11-19 01:55:27,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2024-11-19 01:55:27,355 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-11-19 01:55:27,356 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 152 flow [2024-11-19 01:55:27,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-19 01:55:27,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:27,356 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] [2024-11-19 01:55:27,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:55:27,358 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:27,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 136316791, now seen corresponding path program 7 times [2024-11-19 01:55:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142274555] [2024-11-19 01:55:27,359 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 01:55:27,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:27,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142274555] [2024-11-19 01:55:27,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142274555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:27,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:27,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:27,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690259593] [2024-11-19 01:55:27,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:27,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:27,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:27,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-19 01:55:27,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:27,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:27,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-19 01:55:27,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:27,664 INFO L124 PetriNetUnfolderBase]: 94/255 cut-off events. [2024-11-19 01:55:27,665 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-19 01:55:27,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 255 events. 94/255 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1030 event pairs, 44 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 438. Up to 146 conditions per place. [2024-11-19 01:55:27,666 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 18 selfloop transitions, 3 changer transitions 9/43 dead transitions. [2024-11-19 01:55:27,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 43 transitions, 224 flow [2024-11-19 01:55:27,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:55:27,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 01:55:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2024-11-19 01:55:27,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-19 01:55:27,668 INFO L175 Difference]: Start difference. First operand has 52 places, 37 transitions, 152 flow. Second operand 5 states and 96 transitions. [2024-11-19 01:55:27,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 43 transitions, 224 flow [2024-11-19 01:55:27,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 218 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-19 01:55:27,669 INFO L231 Difference]: Finished difference. Result has 53 places, 31 transitions, 121 flow [2024-11-19 01:55:27,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=53, PETRI_TRANSITIONS=31} [2024-11-19 01:55:27,670 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2024-11-19 01:55:27,671 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 31 transitions, 121 flow [2024-11-19 01:55:27,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:27,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:27,671 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] [2024-11-19 01:55:27,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:55:27,672 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:27,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash 647429889, now seen corresponding path program 8 times [2024-11-19 01:55:27,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:27,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522220123] [2024-11-19 01:55:27,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:27,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:27,683 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:27,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:27,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:27,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522220123] [2024-11-19 01:55:27,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522220123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:27,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:27,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:55:27,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806079240] [2024-11-19 01:55:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:27,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:55:27,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:55:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:55:27,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-19 01:55:27,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:27,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:27,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-19 01:55:27,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:27,864 INFO L124 PetriNetUnfolderBase]: 21/68 cut-off events. [2024-11-19 01:55:27,864 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-19 01:55:27,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 68 events. 21/68 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 5 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 188. Up to 18 conditions per place. [2024-11-19 01:55:27,865 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-19 01:55:27,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 152 flow [2024-11-19 01:55:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:55:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:55:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 113 transitions. [2024-11-19 01:55:27,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5044642857142857 [2024-11-19 01:55:27,866 INFO L175 Difference]: Start difference. First operand has 53 places, 31 transitions, 121 flow. Second operand 7 states and 113 transitions. [2024-11-19 01:55:27,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 152 flow [2024-11-19 01:55:27,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 121 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-19 01:55:27,868 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-11-19 01:55:27,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2024-11-19 01:55:27,869 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-11-19 01:55:27,871 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-11-19 01:55:27,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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) [2024-11-19 01:55:27,874 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-19 01:55:27,875 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-19 01:55:27,875 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-19 01:55:27,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:55:27,876 INFO L407 BasicCegarLoop]: Path program histogram: [8] [2024-11-19 01:55:27,879 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:55:27,882 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:55:27,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:55:27 BasicIcfg [2024-11-19 01:55:27,894 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:55:27,895 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:55:27,895 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:55:27,895 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:55:27,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:24" (3/4) ... [2024-11-19 01:55:27,898 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 01:55:27,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 01:55:27,901 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 01:55:27,905 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-11-19 01:55:27,905 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-19 01:55:27,906 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 01:55:27,906 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 01:55:27,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:55:27,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 01:55:27,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:55:27,994 INFO L158 Benchmark]: Toolchain (without parser) took 4227.31ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 86.8MB in the beginning and 152.4MB in the end (delta: -65.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:55:27,994 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:55:27,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.52ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 73.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 01:55:27,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.79ms. Allocated memory is still 155.2MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:55:27,995 INFO L158 Benchmark]: Boogie Preprocessor took 30.73ms. Allocated memory is still 155.2MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:55:27,995 INFO L158 Benchmark]: RCFGBuilder took 587.68ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 108.4MB in the end (delta: -38.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 01:55:27,996 INFO L158 Benchmark]: TraceAbstraction took 3196.20ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 107.7MB in the beginning and 156.6MB in the end (delta: -48.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:55:27,996 INFO L158 Benchmark]: Witness Printer took 98.91ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 152.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 01:55:27,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.52ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 73.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.79ms. Allocated memory is still 155.2MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.73ms. Allocated memory is still 155.2MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.68ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 108.4MB in the end (delta: -38.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3196.20ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 107.7MB in the beginning and 156.6MB in the end (delta: -48.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.91ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 152.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 778 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 37 mSDtfsCounter, 778 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=3, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 01:55:28,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE