./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-bluetooth.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 cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:26:27,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:26:27,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:26:27,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:26:27,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:26:27,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:26:27,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:26:27,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:26:27,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:26:27,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:26:27,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:26:27,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:26:27,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:26:27,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:26:27,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:26:27,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:26:27,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:26:27,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:26:27,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:26:27,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:26:27,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:26:27,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:26:27,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:26:27,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:26:27,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:26:27,241 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:26:27,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:26:27,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:26:27,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:26:27,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:26:27,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:26:27,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:26:27,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:26:27,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:26:27,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:26:27,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:26:27,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:26:27,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:26:27,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:26:27,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:26:27,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:26:27,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:26:27,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 [2024-11-16 19:26:27,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:26:27,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:26:27,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:26:27,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:26:27,480 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:26:27,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-16 19:26:29,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:26:29,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:26:29,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-16 19:26:29,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1740699c5/5d8c2dce638044f899e9b92ea69caf7c/FLAGad8916b94 [2024-11-16 19:26:29,375 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1740699c5/5d8c2dce638044f899e9b92ea69caf7c [2024-11-16 19:26:29,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:26:29,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:26:29,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:26:29,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:26:29,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:26:29,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703062e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29, skipping insertion in model container [2024-11-16 19:26:29,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:26:29,538 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/parallel-bluetooth.wvr.c[2491,2504] [2024-11-16 19:26:29,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:26:29,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:26:29,578 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/parallel-bluetooth.wvr.c[2491,2504] [2024-11-16 19:26:29,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:26:29,596 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:26:29,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29 WrapperNode [2024-11-16 19:26:29,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:26:29,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:26:29,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:26:29,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:26:29,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,632 INFO L138 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 113 [2024-11-16 19:26:29,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:26:29,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:26:29,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:26:29,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:26:29,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,657 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]. [2024-11-16 19:26:29,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:26:29,665 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:26:29,665 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:26:29,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:26:29,665 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (1/1) ... [2024-11-16 19:26:29,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:26:29,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:26:29,694 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) [2024-11-16 19:26:29,699 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 [2024-11-16 19:26:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:26:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 19:26:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 19:26:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 19:26:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 19:26:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:26:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:26:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:26:29,739 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:26:29,835 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:26:29,837 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:26:29,993 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:26:29,994 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:26:30,129 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:26:30,129 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:26:30,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:26:30 BoogieIcfgContainer [2024-11-16 19:26:30,130 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:26:30,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:26:30,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:26:30,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:26:30,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:26:29" (1/3) ... [2024-11-16 19:26:30,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df439b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:26:30, skipping insertion in model container [2024-11-16 19:26:30,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:29" (2/3) ... [2024-11-16 19:26:30,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df439b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:26:30, skipping insertion in model container [2024-11-16 19:26:30,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:26:30" (3/3) ... [2024-11-16 19:26:30,136 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-11-16 19:26:30,149 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:26:30,149 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:26:30,149 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:26:30,195 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 19:26:30,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 108 flow [2024-11-16 19:26:30,256 INFO L124 PetriNetUnfolderBase]: 3/45 cut-off events. [2024-11-16 19:26:30,256 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:26:30,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 45 events. 3/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-11-16 19:26:30,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 47 transitions, 108 flow [2024-11-16 19:26:30,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-16 19:26:30,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:26:30,275 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;@54dd0f08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:26:30,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-16 19:26:30,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:26:30,292 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-16 19:26:30,292 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:26:30,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:30,293 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:30,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:30,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1174907780, now seen corresponding path program 1 times [2024-11-16 19:26:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:30,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792833389] [2024-11-16 19:26:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:30,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792833389] [2024-11-16 19:26:30,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792833389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:30,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:30,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:26:30,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811767325] [2024-11-16 19:26:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:30,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:26:30,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:30,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:26:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:26:30,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2024-11-16 19:26:30,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-16 19:26:30,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:30,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2024-11-16 19:26:30,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:30,750 INFO L124 PetriNetUnfolderBase]: 205/440 cut-off events. [2024-11-16 19:26:30,750 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-16 19:26:30,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 440 events. 205/440 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1919 event pairs, 73 based on Foata normal form. 12/425 useless extension candidates. Maximal degree in co-relation 739. Up to 223 conditions per place. [2024-11-16 19:26:30,760 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 42 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2024-11-16 19:26:30,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 228 flow [2024-11-16 19:26:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:26:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:26:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-16 19:26:30,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2024-11-16 19:26:30,771 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 3 states and 87 transitions. [2024-11-16 19:26:30,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 228 flow [2024-11-16 19:26:30,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:26:30,779 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 117 flow [2024-11-16 19:26:30,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2024-11-16 19:26:30,802 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-11-16 19:26:30,805 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 117 flow [2024-11-16 19:26:30,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-16 19:26:30,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:30,805 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:30,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:26:30,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:30,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2118008035, now seen corresponding path program 1 times [2024-11-16 19:26:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:30,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628019262] [2024-11-16 19:26:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:30,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:30,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628019262] [2024-11-16 19:26:30,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628019262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:30,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:30,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:26:30,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005573714] [2024-11-16 19:26:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:30,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:26:30,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:30,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:26:30,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:26:30,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2024-11-16 19:26:30,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:30,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:30,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2024-11-16 19:26:30,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:31,079 INFO L124 PetriNetUnfolderBase]: 346/682 cut-off events. [2024-11-16 19:26:31,079 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-16 19:26:31,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 682 events. 346/682 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3135 event pairs, 104 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 693. Up to 448 conditions per place. [2024-11-16 19:26:31,084 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 51 selfloop transitions, 7 changer transitions 2/67 dead transitions. [2024-11-16 19:26:31,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 290 flow [2024-11-16 19:26:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:26:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:26:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-16 19:26:31,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2024-11-16 19:26:31,085 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 117 flow. Second operand 3 states and 87 transitions. [2024-11-16 19:26:31,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 290 flow [2024-11-16 19:26:31,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:26:31,087 INFO L231 Difference]: Finished difference. Result has 49 places, 50 transitions, 153 flow [2024-11-16 19:26:31,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=49, PETRI_TRANSITIONS=50} [2024-11-16 19:26:31,088 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-16 19:26:31,088 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 50 transitions, 153 flow [2024-11-16 19:26:31,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:31,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:31,088 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:31,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:26:31,089 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:31,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1676970579, now seen corresponding path program 2 times [2024-11-16 19:26:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290306656] [2024-11-16 19:26:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:31,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:31,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290306656] [2024-11-16 19:26:31,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290306656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:31,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:31,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:26:31,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868419006] [2024-11-16 19:26:31,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:31,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:26:31,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:31,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:26:31,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:26:31,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2024-11-16 19:26:31,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 50 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2024-11-16 19:26:31,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:31,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2024-11-16 19:26:31,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:31,445 INFO L124 PetriNetUnfolderBase]: 431/942 cut-off events. [2024-11-16 19:26:31,445 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-16 19:26:31,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2216 conditions, 942 events. 431/942 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5160 event pairs, 42 based on Foata normal form. 47/983 useless extension candidates. Maximal degree in co-relation 1322. Up to 278 conditions per place. [2024-11-16 19:26:31,452 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 74 selfloop transitions, 18 changer transitions 11/110 dead transitions. [2024-11-16 19:26:31,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 110 transitions, 555 flow [2024-11-16 19:26:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:26:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:26:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-11-16 19:26:31,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5390070921985816 [2024-11-16 19:26:31,455 INFO L175 Difference]: Start difference. First operand has 49 places, 50 transitions, 153 flow. Second operand 6 states and 152 transitions. [2024-11-16 19:26:31,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 110 transitions, 555 flow [2024-11-16 19:26:31,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 110 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:26:31,461 INFO L231 Difference]: Finished difference. Result has 58 places, 63 transitions, 302 flow [2024-11-16 19:26:31,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=58, PETRI_TRANSITIONS=63} [2024-11-16 19:26:31,461 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2024-11-16 19:26:31,461 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 63 transitions, 302 flow [2024-11-16 19:26:31,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2024-11-16 19:26:31,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:31,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:31,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:26:31,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:31,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2000862167, now seen corresponding path program 3 times [2024-11-16 19:26:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:31,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823555168] [2024-11-16 19:26:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:31,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823555168] [2024-11-16 19:26:31,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823555168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:31,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:31,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:26:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185335199] [2024-11-16 19:26:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:31,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:26:31,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:26:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:26:31,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2024-11-16 19:26:31,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 63 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-16 19:26:31,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:31,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2024-11-16 19:26:31,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:31,795 INFO L124 PetriNetUnfolderBase]: 342/868 cut-off events. [2024-11-16 19:26:31,796 INFO L125 PetriNetUnfolderBase]: For 870/876 co-relation queries the response was YES. [2024-11-16 19:26:31,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2312 conditions, 868 events. 342/868 cut-off events. For 870/876 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5155 event pairs, 227 based on Foata normal form. 1/864 useless extension candidates. Maximal degree in co-relation 1722. Up to 495 conditions per place. [2024-11-16 19:26:31,801 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 47 selfloop transitions, 0 changer transitions 25/86 dead transitions. [2024-11-16 19:26:31,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 542 flow [2024-11-16 19:26:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:26:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:26:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-11-16 19:26:31,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5531914893617021 [2024-11-16 19:26:31,803 INFO L175 Difference]: Start difference. First operand has 58 places, 63 transitions, 302 flow. Second operand 4 states and 104 transitions. [2024-11-16 19:26:31,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 542 flow [2024-11-16 19:26:31,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:26:31,809 INFO L231 Difference]: Finished difference. Result has 63 places, 61 transitions, 296 flow [2024-11-16 19:26:31,809 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=63, PETRI_TRANSITIONS=61} [2024-11-16 19:26:31,809 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-16 19:26:31,810 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 296 flow [2024-11-16 19:26:31,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-16 19:26:31,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:31,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:31,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:26:31,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:31,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:31,812 INFO L85 PathProgramCache]: Analyzing trace with hash 803488356, now seen corresponding path program 1 times [2024-11-16 19:26:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830496887] [2024-11-16 19:26:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:31,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:31,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:31,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830496887] [2024-11-16 19:26:31,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830496887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:31,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:31,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:26:31,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374658995] [2024-11-16 19:26:31,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:31,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:26:31,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:26:31,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:26:31,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2024-11-16 19:26:31,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:31,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:31,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2024-11-16 19:26:31,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:31,974 INFO L124 PetriNetUnfolderBase]: 334/743 cut-off events. [2024-11-16 19:26:31,974 INFO L125 PetriNetUnfolderBase]: For 1013/1013 co-relation queries the response was YES. [2024-11-16 19:26:31,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2108 conditions, 743 events. 334/743 cut-off events. For 1013/1013 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3751 event pairs, 172 based on Foata normal form. 17/759 useless extension candidates. Maximal degree in co-relation 2096. Up to 441 conditions per place. [2024-11-16 19:26:31,978 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 61 selfloop transitions, 9 changer transitions 3/79 dead transitions. [2024-11-16 19:26:31,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 519 flow [2024-11-16 19:26:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:26:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:26:31,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-16 19:26:31,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6028368794326241 [2024-11-16 19:26:31,980 INFO L175 Difference]: Start difference. First operand has 63 places, 61 transitions, 296 flow. Second operand 3 states and 85 transitions. [2024-11-16 19:26:31,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 519 flow [2024-11-16 19:26:31,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 79 transitions, 505 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-16 19:26:31,986 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 340 flow [2024-11-16 19:26:31,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2024-11-16 19:26:31,987 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-16 19:26:31,989 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 340 flow [2024-11-16 19:26:31,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:31,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:31,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:31,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:26:31,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:31,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:31,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1818193390, now seen corresponding path program 2 times [2024-11-16 19:26:31,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:31,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608776279] [2024-11-16 19:26:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:32,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608776279] [2024-11-16 19:26:32,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608776279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:32,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:32,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:26:32,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564914784] [2024-11-16 19:26:32,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:32,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:26:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:32,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:26:32,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:26:32,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2024-11-16 19:26:32,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-16 19:26:32,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:32,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2024-11-16 19:26:32,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:32,280 INFO L124 PetriNetUnfolderBase]: 255/600 cut-off events. [2024-11-16 19:26:32,280 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-11-16 19:26:32,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 600 events. 255/600 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2892 event pairs, 30 based on Foata normal form. 11/608 useless extension candidates. Maximal degree in co-relation 1698. Up to 271 conditions per place. [2024-11-16 19:26:32,283 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 53 selfloop transitions, 19 changer transitions 11/89 dead transitions. [2024-11-16 19:26:32,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 89 transitions, 586 flow [2024-11-16 19:26:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:26:32,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:26:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2024-11-16 19:26:32,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383 [2024-11-16 19:26:32,284 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 340 flow. Second operand 6 states and 129 transitions. [2024-11-16 19:26:32,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 89 transitions, 586 flow [2024-11-16 19:26:32,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 89 transitions, 553 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-16 19:26:32,290 INFO L231 Difference]: Finished difference. Result has 68 places, 58 transitions, 363 flow [2024-11-16 19:26:32,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=68, PETRI_TRANSITIONS=58} [2024-11-16 19:26:32,291 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2024-11-16 19:26:32,291 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 363 flow [2024-11-16 19:26:32,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-16 19:26:32,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:32,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:32,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:26:32,292 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:32,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1045198122, now seen corresponding path program 1 times [2024-11-16 19:26:32,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:32,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789014528] [2024-11-16 19:26:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:32,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:32,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:32,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789014528] [2024-11-16 19:26:32,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789014528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:32,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:32,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:26:32,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345839368] [2024-11-16 19:26:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:32,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:26:32,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:32,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:26:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:26:32,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2024-11-16 19:26:32,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 58 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:32,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:32,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2024-11-16 19:26:32,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:32,454 INFO L124 PetriNetUnfolderBase]: 135/345 cut-off events. [2024-11-16 19:26:32,454 INFO L125 PetriNetUnfolderBase]: For 943/951 co-relation queries the response was YES. [2024-11-16 19:26:32,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 345 events. 135/345 cut-off events. For 943/951 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1407 event pairs, 47 based on Foata normal form. 5/345 useless extension candidates. Maximal degree in co-relation 1074. Up to 206 conditions per place. [2024-11-16 19:26:32,456 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 47 selfloop transitions, 8 changer transitions 2/65 dead transitions. [2024-11-16 19:26:32,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 465 flow [2024-11-16 19:26:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:26:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:26:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-16 19:26:32,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5053191489361702 [2024-11-16 19:26:32,457 INFO L175 Difference]: Start difference. First operand has 68 places, 58 transitions, 363 flow. Second operand 4 states and 95 transitions. [2024-11-16 19:26:32,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 465 flow [2024-11-16 19:26:32,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 421 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-16 19:26:32,459 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 301 flow [2024-11-16 19:26:32,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-16 19:26:32,461 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2024-11-16 19:26:32,461 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 301 flow [2024-11-16 19:26:32,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:26:32,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:26:32,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:26:32,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:26:32,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:26:32,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:26:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1025722392, now seen corresponding path program 2 times [2024-11-16 19:26:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:26:32,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655647633] [2024-11-16 19:26:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:26:32,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:26:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:26:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:26:32,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:26:32,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655647633] [2024-11-16 19:26:32,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655647633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:26:32,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:26:32,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:26:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914208104] [2024-11-16 19:26:32,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:26:32,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:26:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:26:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:26:32,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:26:32,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2024-11-16 19:26:32,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 301 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) [2024-11-16 19:26:32,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:26:32,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2024-11-16 19:26:32,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:26:32,807 INFO L124 PetriNetUnfolderBase]: 128/340 cut-off events. [2024-11-16 19:26:32,807 INFO L125 PetriNetUnfolderBase]: For 598/600 co-relation queries the response was YES. [2024-11-16 19:26:32,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 340 events. 128/340 cut-off events. For 598/600 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1415 event pairs, 13 based on Foata normal form. 3/343 useless extension candidates. Maximal degree in co-relation 990. Up to 134 conditions per place. [2024-11-16 19:26:32,809 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2024-11-16 19:26:32,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 77 transitions, 540 flow [2024-11-16 19:26:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:26:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:26:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2024-11-16 19:26:32,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42249240121580545 [2024-11-16 19:26:32,810 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 301 flow. Second operand 7 states and 139 transitions. [2024-11-16 19:26:32,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 77 transitions, 540 flow [2024-11-16 19:26:32,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 77 transitions, 508 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-16 19:26:32,812 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-11-16 19:26:32,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-11-16 19:26:32,813 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-16 19:26:32,813 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-11-16 19:26:32,813 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) [2024-11-16 19:26:32,815 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-16 19:26:32,815 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-16 19:26:32,816 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-16 19:26:32,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:26:32,816 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1] [2024-11-16 19:26:32,818 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:26:32,818 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:26:32,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:26:32 BasicIcfg [2024-11-16 19:26:32,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:26:32,822 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:26:32,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:26:32,822 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:26:32,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:26:30" (3/4) ... [2024-11-16 19:26:32,824 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:26:32,827 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-16 19:26:32,827 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-16 19:26:32,830 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-16 19:26:32,830 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-16 19:26:32,830 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 19:26:32,830 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-16 19:26:32,830 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 19:26:32,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:26:32,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:26:32,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:26:32,884 INFO L158 Benchmark]: Toolchain (without parser) took 3505.58ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 179.2MB in the beginning and 173.3MB in the end (delta: 5.8MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,884 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:26:32,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.77ms. Allocated memory is still 211.8MB. Free memory was 179.0MB in the beginning and 170.9MB in the end (delta: 8.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.28ms. Allocated memory is still 211.8MB. Free memory was 170.9MB in the beginning and 169.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,885 INFO L158 Benchmark]: Boogie Preprocessor took 30.96ms. Allocated memory is still 211.8MB. Free memory was 169.9MB in the beginning and 167.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,885 INFO L158 Benchmark]: IcfgBuilder took 465.31ms. Allocated memory is still 211.8MB. Free memory was 167.8MB in the beginning and 135.3MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,885 INFO L158 Benchmark]: TraceAbstraction took 2690.45ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 135.3MB in the beginning and 177.5MB in the end (delta: -42.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,885 INFO L158 Benchmark]: Witness Printer took 61.08ms. Allocated memory is still 272.6MB. Free memory was 177.5MB in the beginning and 173.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:26:32,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.77ms. Allocated memory is still 211.8MB. Free memory was 179.0MB in the beginning and 170.9MB in the end (delta: 8.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.28ms. Allocated memory is still 211.8MB. Free memory was 170.9MB in the beginning and 169.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.96ms. Allocated memory is still 211.8MB. Free memory was 169.9MB in the beginning and 167.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 465.31ms. Allocated memory is still 211.8MB. Free memory was 167.8MB in the beginning and 135.3MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2690.45ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 135.3MB in the beginning and 177.5MB in the end (delta: -42.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Witness Printer took 61.08ms. Allocated memory is still 272.6MB. Free memory was 177.5MB in the beginning and 173.3MB 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: 91]: 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, 69 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: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 884 IncrementalHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 9 mSDtfsCounter, 884 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred in iteration=6, InterpolantAutomatonStates: 36, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 851 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! [2024-11-16 19:26:32,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE