./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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-misc-5.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:53:20,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:53:20,324 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:53:20,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:53:20,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:53:20,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:53:20,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:53:20,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:53:20,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:53:20,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:53:20,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:53:20,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:53:20,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:53:20,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:53:20,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:53:20,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:53:20,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:53:20,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:53:20,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:53:20,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:53:20,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:53:20,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:53:20,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:53:20,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:53:20,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:53:20,386 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:53:20,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:53:20,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:53:20,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:53:20,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:53:20,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:53:20,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:53:20,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:53:20,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:53:20,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:53:20,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:53:20,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:53:20,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:53:20,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:53:20,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:53:20,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:53:20,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:53:20,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:53:20,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:53:20,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f [2024-11-17 07:53:20,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:53:20,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:53:20,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:53:20,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:53:20,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:53:20,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-17 07:53:22,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:53:22,314 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:53:22,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-17 07:53:22,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808b29090/db48faab7c854dd1bbdbdd6c3e1e5202/FLAG4d1a5b487 [2024-11-17 07:53:22,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808b29090/db48faab7c854dd1bbdbdd6c3e1e5202 [2024-11-17 07:53:22,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:53:22,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:53:22,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:53:22,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:53:22,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:53:22,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:53:22" (1/1) ... [2024-11-17 07:53:22,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:22, skipping insertion in model container [2024-11-17 07:53:22,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:53:22" (1/1) ... [2024-11-17 07:53:22,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:53:22,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:53:22,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:53:22,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:53:23,017 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:53:23,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23 WrapperNode [2024-11-17 07:53:23,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:53:23,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:53:23,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:53:23,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:53:23,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,056 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 151 [2024-11-17 07:53:23,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:53:23,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:53:23,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:53:23,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:53:23,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,087 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:53:23,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,094 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:53:23,105 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:53:23,106 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:53:23,106 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:53:23,107 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (1/1) ... [2024-11-17 07:53:23,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:53:23,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:23,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:53:23,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:53:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:53:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:53:23,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:53:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:53:23,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:53:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:53:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:53:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:53:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:53:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:53:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:53:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:53:23,204 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:53:23,314 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:53:23,316 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:53:23,580 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:53:23,581 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:53:23,809 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:53:23,810 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:53:23,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:53:23 BoogieIcfgContainer [2024-11-17 07:53:23,811 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:53:23,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:53:23,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:53:23,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:53:23,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:53:22" (1/3) ... [2024-11-17 07:53:23,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d2d0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:53:23, skipping insertion in model container [2024-11-17 07:53:23,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:53:23" (2/3) ... [2024-11-17 07:53:23,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d2d0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:53:23, skipping insertion in model container [2024-11-17 07:53:23,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:53:23" (3/3) ... [2024-11-17 07:53:23,823 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2024-11-17 07:53:23,840 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:53:23,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:53:23,841 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:53:23,916 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:53:23,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 57 transitions, 135 flow [2024-11-17 07:53:24,020 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2024-11-17 07:53:24,021 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:53:24,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 6/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 175 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2024-11-17 07:53:24,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 57 transitions, 135 flow [2024-11-17 07:53:24,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 114 flow [2024-11-17 07:53:24,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:53:24,043 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;@565516e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:53:24,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-17 07:53:24,053 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:53:24,053 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2024-11-17 07:53:24,053 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:53:24,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:24,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:24,058 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:24,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1857734786, now seen corresponding path program 1 times [2024-11-17 07:53:24,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:24,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029588441] [2024-11-17 07:53:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:24,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:24,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029588441] [2024-11-17 07:53:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029588441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:24,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:24,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:53:24,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367858277] [2024-11-17 07:53:24,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:24,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:53:24,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:24,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:53:24,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:53:24,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:24,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:24,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:24,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:24,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:25,266 INFO L124 PetriNetUnfolderBase]: 4699/6793 cut-off events. [2024-11-17 07:53:25,267 INFO L125 PetriNetUnfolderBase]: For 358/358 co-relation queries the response was YES. [2024-11-17 07:53:25,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14006 conditions, 6793 events. 4699/6793 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 37969 event pairs, 854 based on Foata normal form. 330/4835 useless extension candidates. Maximal degree in co-relation 13585. Up to 5774 conditions per place. [2024-11-17 07:53:25,323 INFO L140 encePairwiseOnDemand]: 34/57 looper letters, 57 selfloop transitions, 11 changer transitions 0/75 dead transitions. [2024-11-17 07:53:25,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 75 transitions, 307 flow [2024-11-17 07:53:25,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:53:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:53:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-17 07:53:25,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-17 07:53:25,337 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 114 flow. Second operand 3 states and 114 transitions. [2024-11-17 07:53:25,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 75 transitions, 307 flow [2024-11-17 07:53:25,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 75 transitions, 297 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:53:25,348 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 189 flow [2024-11-17 07:53:25,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2024-11-17 07:53:25,354 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, -3 predicate places. [2024-11-17 07:53:25,354 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 189 flow [2024-11-17 07:53:25,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:25,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:25,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:25,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:53:25,355 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:25,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:25,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1857734784, now seen corresponding path program 1 times [2024-11-17 07:53:25,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:25,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033725818] [2024-11-17 07:53:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:25,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033725818] [2024-11-17 07:53:25,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033725818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:25,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:25,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:53:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274875933] [2024-11-17 07:53:25,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:25,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:53:25,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:53:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:53:25,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:25,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:25,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:25,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:25,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:26,343 INFO L124 PetriNetUnfolderBase]: 6170/9111 cut-off events. [2024-11-17 07:53:26,344 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2024-11-17 07:53:26,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22197 conditions, 9111 events. 6170/9111 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 55585 event pairs, 3011 based on Foata normal form. 154/6292 useless extension candidates. Maximal degree in co-relation 17844. Up to 5090 conditions per place. [2024-11-17 07:53:26,424 INFO L140 encePairwiseOnDemand]: 49/57 looper letters, 73 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-11-17 07:53:26,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 83 transitions, 410 flow [2024-11-17 07:53:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:53:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:53:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-17 07:53:26,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6198830409356725 [2024-11-17 07:53:26,428 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 189 flow. Second operand 3 states and 106 transitions. [2024-11-17 07:53:26,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 83 transitions, 410 flow [2024-11-17 07:53:26,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 83 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:26,433 INFO L231 Difference]: Finished difference. Result has 54 places, 54 transitions, 189 flow [2024-11-17 07:53:26,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=54, PETRI_TRANSITIONS=54} [2024-11-17 07:53:26,434 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2024-11-17 07:53:26,435 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 189 flow [2024-11-17 07:53:26,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:26,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:26,436 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:26,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:53:26,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:26,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1802867412, now seen corresponding path program 1 times [2024-11-17 07:53:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:26,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505716074] [2024-11-17 07:53:26,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:26,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:26,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:26,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505716074] [2024-11-17 07:53:26,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505716074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:26,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:26,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:53:26,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183362399] [2024-11-17 07:53:26,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:26,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:53:26,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:26,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:53:26,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:53:26,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:26,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:26,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:26,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:26,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:27,465 INFO L124 PetriNetUnfolderBase]: 7604/11514 cut-off events. [2024-11-17 07:53:27,466 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-17 07:53:27,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28781 conditions, 11514 events. 7604/11514 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 73291 event pairs, 2457 based on Foata normal form. 158/8408 useless extension candidates. Maximal degree in co-relation 24863. Up to 7470 conditions per place. [2024-11-17 07:53:27,535 INFO L140 encePairwiseOnDemand]: 49/57 looper letters, 68 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-17 07:53:27,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 412 flow [2024-11-17 07:53:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:53:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:53:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-17 07:53:27,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6081871345029239 [2024-11-17 07:53:27,580 INFO L175 Difference]: Start difference. First operand has 54 places, 54 transitions, 189 flow. Second operand 3 states and 104 transitions. [2024-11-17 07:53:27,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 412 flow [2024-11-17 07:53:27,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:27,583 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 197 flow [2024-11-17 07:53:27,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2024-11-17 07:53:27,584 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2024-11-17 07:53:27,584 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 197 flow [2024-11-17 07:53:27,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:27,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:27,585 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:27,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:53:27,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:27,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1097356539, now seen corresponding path program 1 times [2024-11-17 07:53:27,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:27,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743366400] [2024-11-17 07:53:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:27,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:27,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:27,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743366400] [2024-11-17 07:53:27,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743366400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:53:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492386868] [2024-11-17 07:53:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:27,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:27,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:27,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:53:27,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:53:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:27,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:53:27,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:53:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:27,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:53:27,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492386868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:27,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:53:27,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-17 07:53:27,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302774994] [2024-11-17 07:53:27,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:27,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:53:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:27,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:53:27,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:27,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:27,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:27,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:27,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:27,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:29,468 INFO L124 PetriNetUnfolderBase]: 11149/16779 cut-off events. [2024-11-17 07:53:29,469 INFO L125 PetriNetUnfolderBase]: For 2758/2758 co-relation queries the response was YES. [2024-11-17 07:53:29,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43842 conditions, 16779 events. 11149/16779 cut-off events. For 2758/2758 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 108576 event pairs, 4981 based on Foata normal form. 0/12889 useless extension candidates. Maximal degree in co-relation 38023. Up to 9778 conditions per place. [2024-11-17 07:53:29,584 INFO L140 encePairwiseOnDemand]: 38/57 looper letters, 61 selfloop transitions, 17 changer transitions 0/85 dead transitions. [2024-11-17 07:53:29,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 483 flow [2024-11-17 07:53:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:53:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:53:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-17 07:53:29,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-17 07:53:29,587 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 197 flow. Second operand 4 states and 118 transitions. [2024-11-17 07:53:29,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 483 flow [2024-11-17 07:53:29,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 85 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:29,594 INFO L231 Difference]: Finished difference. Result has 58 places, 65 transitions, 381 flow [2024-11-17 07:53:29,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=58, PETRI_TRANSITIONS=65} [2024-11-17 07:53:29,596 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2024-11-17 07:53:29,596 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 65 transitions, 381 flow [2024-11-17 07:53:29,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:29,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:29,597 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:29,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:53:29,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:29,803 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:29,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1097356540, now seen corresponding path program 1 times [2024-11-17 07:53:29,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:29,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588418603] [2024-11-17 07:53:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:29,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:29,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:29,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588418603] [2024-11-17 07:53:29,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588418603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:53:29,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278017749] [2024-11-17 07:53:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:29,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:29,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:29,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:53:29,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:53:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:29,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:53:29,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:53:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:29,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:53:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:30,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278017749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:53:30,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:53:30,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-17 07:53:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277184394] [2024-11-17 07:53:30,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:53:30,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:30,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:30,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:30,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:30,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-17 07:53:30,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:30,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:30,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:32,687 INFO L124 PetriNetUnfolderBase]: 25725/38812 cut-off events. [2024-11-17 07:53:32,690 INFO L125 PetriNetUnfolderBase]: For 33199/33199 co-relation queries the response was YES. [2024-11-17 07:53:32,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115451 conditions, 38812 events. 25725/38812 cut-off events. For 33199/33199 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 271635 event pairs, 1371 based on Foata normal form. 2563/33172 useless extension candidates. Maximal degree in co-relation 98545. Up to 15158 conditions per place. [2024-11-17 07:53:33,041 INFO L140 encePairwiseOnDemand]: 40/57 looper letters, 149 selfloop transitions, 51 changer transitions 0/207 dead transitions. [2024-11-17 07:53:33,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 207 transitions, 1525 flow [2024-11-17 07:53:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:53:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:53:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 224 transitions. [2024-11-17 07:53:33,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6549707602339181 [2024-11-17 07:53:33,046 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 381 flow. Second operand 6 states and 224 transitions. [2024-11-17 07:53:33,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 207 transitions, 1525 flow [2024-11-17 07:53:33,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 207 transitions, 1432 flow, removed 46 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:33,067 INFO L231 Difference]: Finished difference. Result has 65 places, 113 transitions, 1002 flow [2024-11-17 07:53:33,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1002, PETRI_PLACES=65, PETRI_TRANSITIONS=113} [2024-11-17 07:53:33,069 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2024-11-17 07:53:33,069 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 113 transitions, 1002 flow [2024-11-17 07:53:33,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-17 07:53:33,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:33,070 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:33,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:53:33,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:33,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:33,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:33,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1097356541, now seen corresponding path program 1 times [2024-11-17 07:53:33,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:33,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999172537] [2024-11-17 07:53:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:33,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:33,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:33,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999172537] [2024-11-17 07:53:33,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999172537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:33,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:33,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:53:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235371298] [2024-11-17 07:53:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:33,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:53:33,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:33,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:53:33,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:53:33,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:33,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 113 transitions, 1002 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:33,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:33,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:33,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:35,754 INFO L124 PetriNetUnfolderBase]: 24358/36945 cut-off events. [2024-11-17 07:53:35,754 INFO L125 PetriNetUnfolderBase]: For 50567/50567 co-relation queries the response was YES. [2024-11-17 07:53:35,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118174 conditions, 36945 events. 24358/36945 cut-off events. For 50567/50567 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 264091 event pairs, 17901 based on Foata normal form. 0/30374 useless extension candidates. Maximal degree in co-relation 100193. Up to 34528 conditions per place. [2024-11-17 07:53:36,071 INFO L140 encePairwiseOnDemand]: 55/57 looper letters, 98 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2024-11-17 07:53:36,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 106 transitions, 1121 flow [2024-11-17 07:53:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:53:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:53:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-17 07:53:36,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39766081871345027 [2024-11-17 07:53:36,073 INFO L175 Difference]: Start difference. First operand has 65 places, 113 transitions, 1002 flow. Second operand 3 states and 68 transitions. [2024-11-17 07:53:36,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 106 transitions, 1121 flow [2024-11-17 07:53:36,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 106 transitions, 1082 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:36,317 INFO L231 Difference]: Finished difference. Result has 65 places, 106 transitions, 886 flow [2024-11-17 07:53:36,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=65, PETRI_TRANSITIONS=106} [2024-11-17 07:53:36,318 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2024-11-17 07:53:36,318 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 106 transitions, 886 flow [2024-11-17 07:53:36,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:36,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:36,319 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:36,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:53:36,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:36,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1097356542, now seen corresponding path program 1 times [2024-11-17 07:53:36,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:36,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788548499] [2024-11-17 07:53:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:36,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:36,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788548499] [2024-11-17 07:53:36,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788548499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:53:36,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757456378] [2024-11-17 07:53:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:36,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:36,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:36,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:53:36,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:53:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:36,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:53:36,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:53:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:36,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:53:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:36,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757456378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:53:36,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:53:36,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2024-11-17 07:53:36,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879273757] [2024-11-17 07:53:36,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:53:36,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:53:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:36,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:53:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:53:36,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:36,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 106 transitions, 886 flow. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:36,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:36,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:36,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:44,090 INFO L124 PetriNetUnfolderBase]: 60912/93333 cut-off events. [2024-11-17 07:53:44,090 INFO L125 PetriNetUnfolderBase]: For 143292/143292 co-relation queries the response was YES. [2024-11-17 07:53:44,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291553 conditions, 93333 events. 60912/93333 cut-off events. For 143292/143292 co-relation queries the response was YES. Maximal size of possible extension queue 2831. Compared 748950 event pairs, 3798 based on Foata normal form. 912/78958 useless extension candidates. Maximal degree in co-relation 291534. Up to 18381 conditions per place. [2024-11-17 07:53:44,712 INFO L140 encePairwiseOnDemand]: 41/57 looper letters, 343 selfloop transitions, 123 changer transitions 0/473 dead transitions. [2024-11-17 07:53:44,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 473 transitions, 4434 flow [2024-11-17 07:53:44,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:53:44,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:53:44,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 387 transitions. [2024-11-17 07:53:44,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6789473684210526 [2024-11-17 07:53:44,715 INFO L175 Difference]: Start difference. First operand has 65 places, 106 transitions, 886 flow. Second operand 10 states and 387 transitions. [2024-11-17 07:53:44,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 473 transitions, 4434 flow [2024-11-17 07:53:45,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 473 transitions, 4433 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:45,044 INFO L231 Difference]: Finished difference. Result has 80 places, 228 transitions, 2854 flow [2024-11-17 07:53:45,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2854, PETRI_PLACES=80, PETRI_TRANSITIONS=228} [2024-11-17 07:53:45,045 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 25 predicate places. [2024-11-17 07:53:45,046 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 228 transitions, 2854 flow [2024-11-17 07:53:45,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:45,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:45,046 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:45,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:53:45,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:45,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:53:45,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash 415303142, now seen corresponding path program 1 times [2024-11-17 07:53:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:45,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003651866] [2024-11-17 07:53:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:45,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:45,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003651866] [2024-11-17 07:53:45,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003651866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:53:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857871568] [2024-11-17 07:53:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:45,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:45,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:45,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:53:45,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:53:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:45,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:53:45,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:53:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:45,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:53:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:45,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857871568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:53:45,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:53:45,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-17 07:53:45,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201050862] [2024-11-17 07:53:45,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:53:45,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:45,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:45,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:45,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:45,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2024-11-17 07:53:45,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 228 transitions, 2854 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:45,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:45,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2024-11-17 07:53:45,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand