./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 17:09:28,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 17:09:28,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 17:09:28,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 17:09:28,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 17:09:28,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 17:09:28,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 17:09:28,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 17:09:28,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 17:09:28,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 17:09:28,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 17:09:28,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 17:09:28,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 17:09:28,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 17:09:28,218 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 17:09:28,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 17:09:28,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 17:09:28,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 17:09:28,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 17:09:28,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 17:09:28,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 17:09:28,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 17:09:28,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 17:09:28,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 17:09:28,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 17:09:28,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 17:09:28,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 17:09:28,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 17:09:28,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 17:09:28,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 17:09:28,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 17:09:28,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 17:09:28,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:09:28,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 17:09:28,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 17:09:28,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 17:09:28,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 17:09:28,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 17:09:28,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 17:09:28,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 17:09:28,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 17:09:28,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 17:09:28,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 17:09:28,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d [2024-06-27 17:09:28,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 17:09:28,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 17:09:28,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 17:09:28,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 17:09:28,475 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 17:09:28,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2024-06-27 17:09:29,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 17:09:29,732 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 17:09:29,733 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2024-06-27 17:09:29,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebabb915b/07121d2f8efd4e9586cf8f49856866fe/FLAG40a7a2f14 [2024-06-27 17:09:29,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebabb915b/07121d2f8efd4e9586cf8f49856866fe [2024-06-27 17:09:29,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 17:09:29,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 17:09:29,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 17:09:29,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 17:09:29,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 17:09:29,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:29,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603b030c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29, skipping insertion in model container [2024-06-27 17:09:29,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:29,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 17:09:29,938 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3072,3085] [2024-06-27 17:09:29,941 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:09:29,948 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 17:09:29,961 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3072,3085] [2024-06-27 17:09:29,962 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:09:29,973 INFO L206 MainTranslator]: Completed translation [2024-06-27 17:09:29,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29 WrapperNode [2024-06-27 17:09:29,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 17:09:29,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 17:09:29,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 17:09:29,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 17:09:29,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:29,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,010 INFO L138 Inliner]: procedures = 20, calls = 49, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2024-06-27 17:09:30,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 17:09:30,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 17:09:30,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 17:09:30,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 17:09:30,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,030 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]. [2024-06-27 17:09:30,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 17:09:30,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 17:09:30,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 17:09:30,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 17:09:30,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (1/1) ... [2024-06-27 17:09:30,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:09:30,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 17:09:30,074 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) [2024-06-27 17:09:30,078 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 [2024-06-27 17:09:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 17:09:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 17:09:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 17:09:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 17:09:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 17:09:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 17:09:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 17:09:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 17:09:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 17:09:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 17:09:30,115 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 17:09:30,192 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 17:09:30,193 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 17:09:30,369 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 17:09:30,369 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 17:09:30,463 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 17:09:30,464 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 17:09:30,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:09:30 BoogieIcfgContainer [2024-06-27 17:09:30,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 17:09:30,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 17:09:30,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 17:09:30,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 17:09:30,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 05:09:29" (1/3) ... [2024-06-27 17:09:30,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e8692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:09:30, skipping insertion in model container [2024-06-27 17:09:30,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:09:29" (2/3) ... [2024-06-27 17:09:30,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e8692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:09:30, skipping insertion in model container [2024-06-27 17:09:30,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:09:30" (3/3) ... [2024-06-27 17:09:30,473 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-06-27 17:09:30,480 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 17:09:30,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 17:09:30,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 17:09:30,487 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 17:09:30,514 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 17:09:30,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 82 flow [2024-06-27 17:09:30,563 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-06-27 17:09:30,565 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 17:09:30,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 0/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-27 17:09:30,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 34 transitions, 82 flow [2024-06-27 17:09:30,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2024-06-27 17:09:30,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:09:30,586 INFO L357 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, mHoare=true, 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;@3ffad83c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:09:30,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-27 17:09:30,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:09:30,655 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-06-27 17:09:30,655 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 17:09:30,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:30,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:30,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:30,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:30,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1107904685, now seen corresponding path program 1 times [2024-06-27 17:09:30,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483815303] [2024-06-27 17:09:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:30,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:31,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:31,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483815303] [2024-06-27 17:09:31,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483815303] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:31,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:31,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:31,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929816783] [2024-06-27 17:09:31,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:31,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:31,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:31,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:31,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:31,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-06-27 17:09:31,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-06-27 17:09:31,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:31,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-06-27 17:09:31,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:31,340 INFO L124 PetriNetUnfolderBase]: 124/315 cut-off events. [2024-06-27 17:09:31,341 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-06-27 17:09:31,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 315 events. 124/315 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1465 event pairs, 39 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 521. Up to 80 conditions per place. [2024-06-27 17:09:31,345 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 6 changer transitions 14/64 dead transitions. [2024-06-27 17:09:31,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 64 transitions, 266 flow [2024-06-27 17:09:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:09:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:09:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2024-06-27 17:09:31,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6596638655462185 [2024-06-27 17:09:31,355 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 74 flow. Second operand 7 states and 157 transitions. [2024-06-27 17:09:31,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 64 transitions, 266 flow [2024-06-27 17:09:31,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 17:09:31,362 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 101 flow [2024-06-27 17:09:31,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-06-27 17:09:31,366 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2024-06-27 17:09:31,367 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 101 flow [2024-06-27 17:09:31,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-06-27 17:09:31,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:31,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:31,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 17:09:31,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:31,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash 354567969, now seen corresponding path program 2 times [2024-06-27 17:09:31,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328856149] [2024-06-27 17:09:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:31,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:31,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328856149] [2024-06-27 17:09:31,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328856149] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:31,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:31,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:31,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718569042] [2024-06-27 17:09:31,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:31,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:31,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:31,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:31,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34 [2024-06-27 17:09:31,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:31,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:31,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34 [2024-06-27 17:09:31,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:31,701 INFO L124 PetriNetUnfolderBase]: 307/733 cut-off events. [2024-06-27 17:09:31,701 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-06-27 17:09:31,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 733 events. 307/733 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3979 event pairs, 51 based on Foata normal form. 6/728 useless extension candidates. Maximal degree in co-relation 1424. Up to 143 conditions per place. [2024-06-27 17:09:31,718 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 44 selfloop transitions, 11 changer transitions 13/83 dead transitions. [2024-06-27 17:09:31,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 340 flow [2024-06-27 17:09:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 17:09:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 17:09:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2024-06-27 17:09:31,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2024-06-27 17:09:31,723 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 101 flow. Second operand 9 states and 186 transitions. [2024-06-27 17:09:31,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 340 flow [2024-06-27 17:09:31,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 83 transitions, 336 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-27 17:09:31,727 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 173 flow [2024-06-27 17:09:31,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2024-06-27 17:09:31,728 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-06-27 17:09:31,728 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 173 flow [2024-06-27 17:09:31,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:31,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:31,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:31,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 17:09:31,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:31,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:31,729 INFO L85 PathProgramCache]: Analyzing trace with hash -524857467, now seen corresponding path program 3 times [2024-06-27 17:09:31,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:31,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569517538] [2024-06-27 17:09:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:31,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:31,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569517538] [2024-06-27 17:09:31,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569517538] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:31,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 17:09:31,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497037489] [2024-06-27 17:09:31,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:31,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 17:09:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 17:09:31,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 17:09:31,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2024-06-27 17:09:31,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 17:09:31,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:31,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2024-06-27 17:09:31,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:31,892 INFO L124 PetriNetUnfolderBase]: 164/532 cut-off events. [2024-06-27 17:09:31,892 INFO L125 PetriNetUnfolderBase]: For 213/217 co-relation queries the response was YES. [2024-06-27 17:09:31,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 532 events. 164/532 cut-off events. For 213/217 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3108 event pairs, 133 based on Foata normal form. 9/518 useless extension candidates. Maximal degree in co-relation 1018. Up to 300 conditions per place. [2024-06-27 17:09:31,895 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 19 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-06-27 17:09:31,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 228 flow [2024-06-27 17:09:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 17:09:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 17:09:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-06-27 17:09:31,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-06-27 17:09:31,896 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 173 flow. Second operand 3 states and 73 transitions. [2024-06-27 17:09:31,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 228 flow [2024-06-27 17:09:31,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-27 17:09:31,902 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 179 flow [2024-06-27 17:09:31,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2024-06-27 17:09:31,903 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-06-27 17:09:31,903 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 179 flow [2024-06-27 17:09:31,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 17:09:31,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:31,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:31,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 17:09:31,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:31,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1093504253, now seen corresponding path program 4 times [2024-06-27 17:09:31,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:31,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689959345] [2024-06-27 17:09:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:32,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689959345] [2024-06-27 17:09:32,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689959345] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:32,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:32,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:32,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682523588] [2024-06-27 17:09:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:32,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:32,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:32,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:32,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-06-27 17:09:32,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-06-27 17:09:32,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:32,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-06-27 17:09:32,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:32,149 INFO L124 PetriNetUnfolderBase]: 247/599 cut-off events. [2024-06-27 17:09:32,149 INFO L125 PetriNetUnfolderBase]: For 271/278 co-relation queries the response was YES. [2024-06-27 17:09:32,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 599 events. 247/599 cut-off events. For 271/278 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3196 event pairs, 90 based on Foata normal form. 8/586 useless extension candidates. Maximal degree in co-relation 701. Up to 159 conditions per place. [2024-06-27 17:09:32,152 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 22 selfloop transitions, 5 changer transitions 15/63 dead transitions. [2024-06-27 17:09:32,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 312 flow [2024-06-27 17:09:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:09:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:09:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-06-27 17:09:32,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6218487394957983 [2024-06-27 17:09:32,153 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 179 flow. Second operand 7 states and 148 transitions. [2024-06-27 17:09:32,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 312 flow [2024-06-27 17:09:32,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 17:09:32,157 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 178 flow [2024-06-27 17:09:32,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2024-06-27 17:09:32,159 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2024-06-27 17:09:32,159 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 178 flow [2024-06-27 17:09:32,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 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) [2024-06-27 17:09:32,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:32,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:32,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 17:09:32,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:32,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:32,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1208588793, now seen corresponding path program 5 times [2024-06-27 17:09:32,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:32,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900009166] [2024-06-27 17:09:32,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:32,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:32,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900009166] [2024-06-27 17:09:32,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900009166] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:32,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:32,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:32,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572842058] [2024-06-27 17:09:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:32,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:32,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:32,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:32,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:32,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34 [2024-06-27 17:09:32,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:32,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34 [2024-06-27 17:09:32,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:32,433 INFO L124 PetriNetUnfolderBase]: 264/658 cut-off events. [2024-06-27 17:09:32,433 INFO L125 PetriNetUnfolderBase]: For 528/549 co-relation queries the response was YES. [2024-06-27 17:09:32,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 658 events. 264/658 cut-off events. For 528/549 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3504 event pairs, 74 based on Foata normal form. 27/670 useless extension candidates. Maximal degree in co-relation 1665. Up to 196 conditions per place. [2024-06-27 17:09:32,435 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 42 selfloop transitions, 8 changer transitions 13/76 dead transitions. [2024-06-27 17:09:32,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 76 transitions, 404 flow [2024-06-27 17:09:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 17:09:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 17:09:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2024-06-27 17:09:32,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6176470588235294 [2024-06-27 17:09:32,436 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 178 flow. Second operand 8 states and 168 transitions. [2024-06-27 17:09:32,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 76 transitions, 404 flow [2024-06-27 17:09:32,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 76 transitions, 387 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-06-27 17:09:32,439 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 171 flow [2024-06-27 17:09:32,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=171, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-06-27 17:09:32,440 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2024-06-27 17:09:32,440 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 171 flow [2024-06-27 17:09:32,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:32,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:32,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 17:09:32,440 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:32,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:32,441 INFO L85 PathProgramCache]: Analyzing trace with hash 83935817, now seen corresponding path program 6 times [2024-06-27 17:09:32,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:32,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312475023] [2024-06-27 17:09:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:32,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:32,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312475023] [2024-06-27 17:09:32,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312475023] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:32,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:32,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 17:09:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249637514] [2024-06-27 17:09:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:32,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 17:09:32,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 17:09:32,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 17:09:32,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34 [2024-06-27 17:09:32,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 17:09:32,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:32,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34 [2024-06-27 17:09:32,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:32,526 INFO L124 PetriNetUnfolderBase]: 108/375 cut-off events. [2024-06-27 17:09:32,526 INFO L125 PetriNetUnfolderBase]: For 228/232 co-relation queries the response was YES. [2024-06-27 17:09:32,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 375 events. 108/375 cut-off events. For 228/232 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2032 event pairs, 107 based on Foata normal form. 8/357 useless extension candidates. Maximal degree in co-relation 578. Up to 241 conditions per place. [2024-06-27 17:09:32,528 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 15 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-06-27 17:09:32,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 40 transitions, 207 flow [2024-06-27 17:09:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 17:09:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 17:09:32,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-06-27 17:09:32,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6764705882352942 [2024-06-27 17:09:32,529 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 171 flow. Second operand 3 states and 69 transitions. [2024-06-27 17:09:32,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 40 transitions, 207 flow [2024-06-27 17:09:32,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 40 transitions, 184 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-06-27 17:09:32,531 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 156 flow [2024-06-27 17:09:32,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2024-06-27 17:09:32,534 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-06-27 17:09:32,534 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 156 flow [2024-06-27 17:09:32,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-06-27 17:09:32,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:32,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:32,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 17:09:32,535 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:32,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:32,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2080794557, now seen corresponding path program 7 times [2024-06-27 17:09:32,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447607002] [2024-06-27 17:09:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:32,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447607002] [2024-06-27 17:09:32,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447607002] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:32,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:32,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:32,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125049624] [2024-06-27 17:09:32,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:32,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:32,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:32,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:32,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:32,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34 [2024-06-27 17:09:32,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:32,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34 [2024-06-27 17:09:32,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:32,747 INFO L124 PetriNetUnfolderBase]: 139/348 cut-off events. [2024-06-27 17:09:32,748 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2024-06-27 17:09:32,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 348 events. 139/348 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1470 event pairs, 51 based on Foata normal form. 6/343 useless extension candidates. Maximal degree in co-relation 630. Up to 196 conditions per place. [2024-06-27 17:09:32,750 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 21 selfloop transitions, 3 changer transitions 13/50 dead transitions. [2024-06-27 17:09:32,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 256 flow [2024-06-27 17:09:32,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 17:09:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 17:09:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-06-27 17:09:32,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5686274509803921 [2024-06-27 17:09:32,751 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 156 flow. Second operand 6 states and 116 transitions. [2024-06-27 17:09:32,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 256 flow [2024-06-27 17:09:32,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 250 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-06-27 17:09:32,754 INFO L231 Difference]: Finished difference. Result has 56 places, 33 transitions, 125 flow [2024-06-27 17:09:32,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=125, PETRI_PLACES=56, PETRI_TRANSITIONS=33} [2024-06-27 17:09:32,755 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 18 predicate places. [2024-06-27 17:09:32,755 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 33 transitions, 125 flow [2024-06-27 17:09:32,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:09:32,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:09:32,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 17:09:32,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 17:09:32,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:09:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash -272443641, now seen corresponding path program 8 times [2024-06-27 17:09:32,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:09:32,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452224282] [2024-06-27 17:09:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:09:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:09:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:09:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:09:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:09:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452224282] [2024-06-27 17:09:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452224282] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:09:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:09:32,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:09:32,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815005296] [2024-06-27 17:09:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:09:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:09:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:09:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:09:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:09:32,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34 [2024-06-27 17:09:32,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 33 transitions, 125 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:09:32,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34 [2024-06-27 17:09:32,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:09:32,884 INFO L124 PetriNetUnfolderBase]: 41/106 cut-off events. [2024-06-27 17:09:32,884 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-06-27 17:09:32,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 106 events. 41/106 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 285 event pairs, 5 based on Foata normal form. 6/109 useless extension candidates. Maximal degree in co-relation 292. Up to 28 conditions per place. [2024-06-27 17:09:32,885 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-06-27 17:09:32,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 178 flow [2024-06-27 17:09:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:09:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:09:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2024-06-27 17:09:32,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4957983193277311 [2024-06-27 17:09:32,899 INFO L175 Difference]: Start difference. First operand has 56 places, 33 transitions, 125 flow. Second operand 7 states and 118 transitions. [2024-06-27 17:09:32,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 178 flow [2024-06-27 17:09:32,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 143 flow, removed 11 selfloop flow, removed 10 redundant places. [2024-06-27 17:09:32,900 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-06-27 17:09:32,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-06-27 17:09:32,900 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2024-06-27 17:09:32,901 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-06-27 17:09:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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) [2024-06-27 17:09:32,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-06-27 17:09:32,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-06-27 17:09:32,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-27 17:09:32,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 17:09:32,904 INFO L445 BasicCegarLoop]: Path program histogram: [8] [2024-06-27 17:09:32,906 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 17:09:32,906 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 17:09:32,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 05:09:32 BasicIcfg [2024-06-27 17:09:32,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 17:09:32,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 17:09:32,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 17:09:32,910 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 17:09:32,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:09:30" (3/4) ... [2024-06-27 17:09:32,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 17:09:32,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-06-27 17:09:32,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-06-27 17:09:32,917 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-06-27 17:09:32,918 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-06-27 17:09:32,918 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-06-27 17:09:32,918 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-06-27 17:09:32,973 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 17:09:32,974 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 17:09:32,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 17:09:32,974 INFO L158 Benchmark]: Toolchain (without parser) took 3214.40ms. Allocated memory was 211.8MB in the beginning and 287.3MB in the end (delta: 75.5MB). Free memory was 141.7MB in the beginning and 251.0MB in the end (delta: -109.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 17:09:32,975 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 98.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 17:09:32,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.52ms. Allocated memory is still 211.8MB. Free memory was 141.7MB in the beginning and 129.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-27 17:09:32,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 211.8MB. Free memory was 129.4MB in the beginning and 127.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 17:09:32,975 INFO L158 Benchmark]: Boogie Preprocessor took 25.46ms. Allocated memory is still 211.8MB. Free memory was 127.8MB in the beginning and 126.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 17:09:32,976 INFO L158 Benchmark]: RCFGBuilder took 427.87ms. Allocated memory is still 211.8MB. Free memory was 125.7MB in the beginning and 103.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 17:09:32,976 INFO L158 Benchmark]: TraceAbstraction took 2442.75ms. Allocated memory was 211.8MB in the beginning and 287.3MB in the end (delta: 75.5MB). Free memory was 103.0MB in the beginning and 255.1MB in the end (delta: -152.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-06-27 17:09:32,976 INFO L158 Benchmark]: Witness Printer took 63.86ms. Allocated memory is still 287.3MB. Free memory was 255.1MB in the beginning and 251.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 17:09:32,977 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 117.4MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 98.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.52ms. Allocated memory is still 211.8MB. Free memory was 141.7MB in the beginning and 129.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 211.8MB. Free memory was 129.4MB in the beginning and 127.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.46ms. Allocated memory is still 211.8MB. Free memory was 127.8MB in the beginning and 126.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.87ms. Allocated memory is still 211.8MB. Free memory was 125.7MB in the beginning and 103.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2442.75ms. Allocated memory was 211.8MB in the beginning and 287.3MB in the end (delta: 75.5MB). Free memory was 103.0MB in the beginning and 255.1MB in the end (delta: -152.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 63.86ms. Allocated memory is still 287.3MB. Free memory was 255.1MB in the beginning and 251.0MB 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: 116]: 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, 61 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 347 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 331 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 889 IncrementalHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 889 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=3, InterpolantAutomatonStates: 50, 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, 0.8s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 734 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! [2024-06-27 17:09:33,005 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