./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/pthread-ext/28_buggy_simple_loop1_vf.i -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 f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:06:07,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:06:07,060 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:06:07,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:06:07,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:06:07,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:06:07,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:06:07,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:06:07,116 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:06:07,116 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:06:07,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:06:07,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:06:07,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:06:07,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:06:07,118 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:06:07,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:06:07,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:06:07,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:06:07,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:06:07,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:06:07,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:06:07,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:06:07,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:06:07,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:06:07,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:06:07,125 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:06:07,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:06:07,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:06:07,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:06:07,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:06:07,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:06:07,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:06:07,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:06:07,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2024-11-10 22:06:07,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:06:07,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:06:07,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:06:07,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:06:07,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:06:07,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-10 22:06:08,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:06:08,711 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:06:08,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-10 22:06:08,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4b5b548/e85d0907eb0f43c8ad086b9c925323cc/FLAGa56f7dbff [2024-11-10 22:06:08,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4b5b548/e85d0907eb0f43c8ad086b9c925323cc [2024-11-10 22:06:08,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:06:08,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:06:08,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:06:08,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:06:08,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:06:08,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:06:08" (1/1) ... [2024-11-10 22:06:08,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447a2152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:08, skipping insertion in model container [2024-11-10 22:06:08,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:06:08" (1/1) ... [2024-11-10 22:06:08,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:06:09,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:06:09,029 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:06:09,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:06:09,101 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:06:09,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09 WrapperNode [2024-11-10 22:06:09,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:06:09,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:06:09,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:06:09,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:06:09,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,139 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2024-11-10 22:06:09,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:06:09,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:06:09,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:06:09,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:06:09,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,160 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]. [2024-11-10 22:06:09,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:06:09,167 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:06:09,167 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:06:09,167 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:06:09,168 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (1/1) ... [2024-11-10 22:06:09,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:06:09,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:06:09,197 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) [2024-11-10 22:06:09,199 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 [2024-11-10 22:06:09,234 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 22:06:09,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 22:06:09,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:06:09,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:06:09,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:06:09,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:06:09,236 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:06:09,335 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:06:09,337 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:06:09,479 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:06:09,483 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:06:09,541 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:06:09,541 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:06:09,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:06:09 BoogieIcfgContainer [2024-11-10 22:06:09,542 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:06:09,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:06:09,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:06:09,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:06:09,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:06:08" (1/3) ... [2024-11-10 22:06:09,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8e9642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:06:09, skipping insertion in model container [2024-11-10 22:06:09,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:09" (2/3) ... [2024-11-10 22:06:09,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8e9642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:06:09, skipping insertion in model container [2024-11-10 22:06:09,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:06:09" (3/3) ... [2024-11-10 22:06:09,551 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-11-10 22:06:09,564 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:06:09,564 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-10 22:06:09,564 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:06:09,623 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:06:09,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 46 transitions, 96 flow [2024-11-10 22:06:09,670 INFO L124 PetriNetUnfolderBase]: 10/51 cut-off events. [2024-11-10 22:06:09,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:06:09,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 10/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2024-11-10 22:06:09,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 46 transitions, 96 flow [2024-11-10 22:06:09,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 46 transitions, 96 flow [2024-11-10 22:06:09,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:06:09,692 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;@3a3a6840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:06:09,693 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-10 22:06:09,698 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:06:09,698 INFO L124 PetriNetUnfolderBase]: 4/21 cut-off events. [2024-11-10 22:06:09,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:06:09,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:09,699 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:06:09,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-10 22:06:09,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1194797473, now seen corresponding path program 1 times [2024-11-10 22:06:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231435594] [2024-11-10 22:06:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:09,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:09,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:06:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:09,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:06:09,828 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:06:09,829 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-10 22:06:09,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-10 22:06:09,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-10 22:06:09,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-10 22:06:09,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-10 22:06:09,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-10 22:06:09,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-10 22:06:09,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-10 22:06:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-10 22:06:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-10 22:06:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-10 22:06:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-10 22:06:09,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:06:09,834 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 22:06:09,836 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:06:09,836 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:06:09,890 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:06:09,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 84 transitions, 178 flow [2024-11-10 22:06:09,918 INFO L124 PetriNetUnfolderBase]: 19/95 cut-off events. [2024-11-10 22:06:09,922 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:06:09,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 95 events. 19/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 276 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place. [2024-11-10 22:06:09,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 84 transitions, 178 flow [2024-11-10 22:06:09,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 84 transitions, 178 flow [2024-11-10 22:06:09,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:06:09,934 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;@3a3a6840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:06:09,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-10 22:06:09,939 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:06:09,939 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-10 22:06:09,939 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:06:09,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:09,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:09,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:06:09,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:09,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1065421849, now seen corresponding path program 1 times [2024-11-10 22:06:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:09,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422455616] [2024-11-10 22:06:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:09,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:10,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422455616] [2024-11-10 22:06:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422455616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:10,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:10,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:10,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554316832] [2024-11-10 22:06:10,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:10,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:10,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:10,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 84 [2024-11-10 22:06:10,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 84 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-10 22:06:10,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:10,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 84 [2024-11-10 22:06:10,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:10,388 INFO L124 PetriNetUnfolderBase]: 638/1998 cut-off events. [2024-11-10 22:06:10,389 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-10 22:06:10,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1998 events. 638/1998 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 16020 event pairs, 220 based on Foata normal form. 435/2098 useless extension candidates. Maximal degree in co-relation 1210. Up to 526 conditions per place. [2024-11-10 22:06:10,407 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 39 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-11-10 22:06:10,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 91 transitions, 279 flow [2024-11-10 22:06:10,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-11-10 22:06:10,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8452380952380952 [2024-11-10 22:06:10,421 INFO L175 Difference]: Start difference. First operand has 72 places, 84 transitions, 178 flow. Second operand 3 states and 213 transitions. [2024-11-10 22:06:10,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 91 transitions, 279 flow [2024-11-10 22:06:10,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 91 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:06:10,427 INFO L231 Difference]: Finished difference. Result has 73 places, 74 transitions, 170 flow [2024-11-10 22:06:10,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2024-11-10 22:06:10,431 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2024-11-10 22:06:10,432 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 170 flow [2024-11-10 22:06:10,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-10 22:06:10,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:10,432 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-10 22:06:10,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:06:10,433 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:06:10,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:10,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2023466702, now seen corresponding path program 1 times [2024-11-10 22:06:10,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:10,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694417447] [2024-11-10 22:06:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:10,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:10,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:06:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:10,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:06:10,469 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-10 22:06:10,470 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-11-10 22:06:10,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-11-10 22:06:10,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-10 22:06:10,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-10 22:06:10,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-10 22:06:10,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-10 22:06:10,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-10 22:06:10,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-10 22:06:10,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-10 22:06:10,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-10 22:06:10,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-10 22:06:10,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-10 22:06:10,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:06:10,475 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 22:06:10,475 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:06:10,475 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:06:10,522 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:06:10,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 122 transitions, 262 flow [2024-11-10 22:06:10,537 INFO L124 PetriNetUnfolderBase]: 28/139 cut-off events. [2024-11-10 22:06:10,538 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 22:06:10,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 28/139 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 117. Up to 8 conditions per place. [2024-11-10 22:06:10,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 122 transitions, 262 flow [2024-11-10 22:06:10,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 122 transitions, 262 flow [2024-11-10 22:06:10,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:06:10,544 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;@3a3a6840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:06:10,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-10 22:06:10,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:06:10,547 INFO L124 PetriNetUnfolderBase]: 4/23 cut-off events. [2024-11-10 22:06:10,547 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:06:10,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:10,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:10,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:10,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:10,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1353692812, now seen corresponding path program 1 times [2024-11-10 22:06:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236889851] [2024-11-10 22:06:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:10,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:10,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236889851] [2024-11-10 22:06:10,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236889851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:10,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:10,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:10,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001095681] [2024-11-10 22:06:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:10,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:10,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 122 [2024-11-10 22:06:10,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 122 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-11-10 22:06:10,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:10,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 122 [2024-11-10 22:06:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:11,729 INFO L124 PetriNetUnfolderBase]: 6080/14764 cut-off events. [2024-11-10 22:06:11,730 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2024-11-10 22:06:11,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22583 conditions, 14764 events. 6080/14764 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 150692 event pairs, 2176 based on Foata normal form. 3712/16178 useless extension candidates. Maximal degree in co-relation 2898. Up to 4534 conditions per place. [2024-11-10 22:06:11,834 INFO L140 encePairwiseOnDemand]: 104/122 looper letters, 57 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-11-10 22:06:11,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 134 transitions, 416 flow [2024-11-10 22:06:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2024-11-10 22:06:11,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8579234972677595 [2024-11-10 22:06:11,838 INFO L175 Difference]: Start difference. First operand has 104 places, 122 transitions, 262 flow. Second operand 3 states and 314 transitions. [2024-11-10 22:06:11,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 134 transitions, 416 flow [2024-11-10 22:06:11,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 134 transitions, 412 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-10 22:06:11,843 INFO L231 Difference]: Finished difference. Result has 105 places, 108 transitions, 244 flow [2024-11-10 22:06:11,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=105, PETRI_TRANSITIONS=108} [2024-11-10 22:06:11,845 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2024-11-10 22:06:11,845 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 108 transitions, 244 flow [2024-11-10 22:06:11,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-11-10 22:06:11,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:11,845 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:11,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:06:11,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:11,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash 955098234, now seen corresponding path program 1 times [2024-11-10 22:06:11,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647292331] [2024-11-10 22:06:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:06:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647292331] [2024-11-10 22:06:11,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647292331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:11,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:11,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:11,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636034846] [2024-11-10 22:06:11,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:11,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:11,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:11,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:11,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 122 [2024-11-10 22:06:11,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 108 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2024-11-10 22:06:11,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:11,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 122 [2024-11-10 22:06:11,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:13,673 INFO L124 PetriNetUnfolderBase]: 11106/26500 cut-off events. [2024-11-10 22:06:13,674 INFO L125 PetriNetUnfolderBase]: For 2060/2060 co-relation queries the response was YES. [2024-11-10 22:06:13,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41757 conditions, 26500 events. 11106/26500 cut-off events. For 2060/2060 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 288180 event pairs, 4120 based on Foata normal form. 231/22458 useless extension candidates. Maximal degree in co-relation 18852. Up to 8344 conditions per place. [2024-11-10 22:06:13,868 INFO L140 encePairwiseOnDemand]: 118/122 looper letters, 58 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2024-11-10 22:06:13,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 135 transitions, 431 flow [2024-11-10 22:06:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2024-11-10 22:06:13,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7786885245901639 [2024-11-10 22:06:13,872 INFO L175 Difference]: Start difference. First operand has 105 places, 108 transitions, 244 flow. Second operand 3 states and 285 transitions. [2024-11-10 22:06:13,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 135 transitions, 431 flow [2024-11-10 22:06:13,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 135 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:06:13,880 INFO L231 Difference]: Finished difference. Result has 107 places, 109 transitions, 256 flow [2024-11-10 22:06:13,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=107, PETRI_TRANSITIONS=109} [2024-11-10 22:06:13,881 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 3 predicate places. [2024-11-10 22:06:13,882 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 109 transitions, 256 flow [2024-11-10 22:06:13,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2024-11-10 22:06:13,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:13,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:13,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:06:13,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:13,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1549377225, now seen corresponding path program 1 times [2024-11-10 22:06:13,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:13,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42521346] [2024-11-10 22:06:13,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:13,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:13,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:13,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42521346] [2024-11-10 22:06:13,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42521346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:13,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:13,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:06:13,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838194780] [2024-11-10 22:06:13,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:13,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:06:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:06:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:06:13,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2024-11-10 22:06:13,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 109 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 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) [2024-11-10 22:06:13,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:13,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2024-11-10 22:06:13,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:15,883 INFO L124 PetriNetUnfolderBase]: 14261/32247 cut-off events. [2024-11-10 22:06:15,884 INFO L125 PetriNetUnfolderBase]: For 3836/3836 co-relation queries the response was YES. [2024-11-10 22:06:15,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53143 conditions, 32247 events. 14261/32247 cut-off events. For 3836/3836 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 349177 event pairs, 5740 based on Foata normal form. 468/28110 useless extension candidates. Maximal degree in co-relation 24137. Up to 11263 conditions per place. [2024-11-10 22:06:16,113 INFO L140 encePairwiseOnDemand]: 117/122 looper letters, 83 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2024-11-10 22:06:16,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 158 transitions, 562 flow [2024-11-10 22:06:16,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:06:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:06:16,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2024-11-10 22:06:16,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.764344262295082 [2024-11-10 22:06:16,117 INFO L175 Difference]: Start difference. First operand has 107 places, 109 transitions, 256 flow. Second operand 4 states and 373 transitions. [2024-11-10 22:06:16,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 158 transitions, 562 flow [2024-11-10 22:06:16,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 158 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:06:16,127 INFO L231 Difference]: Finished difference. Result has 111 places, 110 transitions, 272 flow [2024-11-10 22:06:16,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=272, PETRI_PLACES=111, PETRI_TRANSITIONS=110} [2024-11-10 22:06:16,129 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 7 predicate places. [2024-11-10 22:06:16,129 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 110 transitions, 272 flow [2024-11-10 22:06:16,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 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) [2024-11-10 22:06:16,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:16,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:16,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:06:16,130 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:16,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:16,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1401170064, now seen corresponding path program 1 times [2024-11-10 22:06:16,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:16,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420732923] [2024-11-10 22:06:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:16,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:16,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420732923] [2024-11-10 22:06:16,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420732923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:16,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:16,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:06:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192080360] [2024-11-10 22:06:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:16,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:06:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:06:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:06:16,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2024-11-10 22:06:16,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-11-10 22:06:16,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:16,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2024-11-10 22:06:16,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:18,705 INFO L124 PetriNetUnfolderBase]: 17825/39142 cut-off events. [2024-11-10 22:06:18,705 INFO L125 PetriNetUnfolderBase]: For 5604/5604 co-relation queries the response was YES. [2024-11-10 22:06:18,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66742 conditions, 39142 events. 17825/39142 cut-off events. For 5604/5604 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 419376 event pairs, 5098 based on Foata normal form. 234/33620 useless extension candidates. Maximal degree in co-relation 63802. Up to 10282 conditions per place. [2024-11-10 22:06:18,905 INFO L140 encePairwiseOnDemand]: 115/122 looper letters, 127 selfloop transitions, 6 changer transitions 0/206 dead transitions. [2024-11-10 22:06:18,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 206 transitions, 798 flow [2024-11-10 22:06:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:06:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:06:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2024-11-10 22:06:18,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7663934426229508 [2024-11-10 22:06:18,907 INFO L175 Difference]: Start difference. First operand has 111 places, 110 transitions, 272 flow. Second operand 6 states and 561 transitions. [2024-11-10 22:06:18,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 206 transitions, 798 flow [2024-11-10 22:06:18,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 206 transitions, 794 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:06:18,913 INFO L231 Difference]: Finished difference. Result has 118 places, 114 transitions, 309 flow [2024-11-10 22:06:18,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=118, PETRI_TRANSITIONS=114} [2024-11-10 22:06:18,914 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 14 predicate places. [2024-11-10 22:06:18,914 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 114 transitions, 309 flow [2024-11-10 22:06:18,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2024-11-10 22:06:18,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:18,918 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:18,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:06:18,918 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:18,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:18,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1401168977, now seen corresponding path program 1 times [2024-11-10 22:06:18,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:18,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316085571] [2024-11-10 22:06:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:18,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:18,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:18,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316085571] [2024-11-10 22:06:18,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316085571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:18,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:18,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:06:18,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36897875] [2024-11-10 22:06:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:18,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:06:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:06:18,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:06:19,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2024-11-10 22:06:19,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 309 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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) [2024-11-10 22:06:19,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:19,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2024-11-10 22:06:19,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:22,650 INFO L124 PetriNetUnfolderBase]: 23357/52764 cut-off events. [2024-11-10 22:06:22,650 INFO L125 PetriNetUnfolderBase]: For 15162/15477 co-relation queries the response was YES. [2024-11-10 22:06:22,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95398 conditions, 52764 events. 23357/52764 cut-off events. For 15162/15477 co-relation queries the response was YES. Maximal size of possible extension queue 1891. Compared 607647 event pairs, 6349 based on Foata normal form. 663/45707 useless extension candidates. Maximal degree in co-relation 91099. Up to 14674 conditions per place. [2024-11-10 22:06:23,023 INFO L140 encePairwiseOnDemand]: 113/122 looper letters, 170 selfloop transitions, 12 changer transitions 0/257 dead transitions. [2024-11-10 22:06:23,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 257 transitions, 1079 flow [2024-11-10 22:06:23,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:06:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:06:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 754 transitions. [2024-11-10 22:06:23,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7725409836065574 [2024-11-10 22:06:23,026 INFO L175 Difference]: Start difference. First operand has 118 places, 114 transitions, 309 flow. Second operand 8 states and 754 transitions. [2024-11-10 22:06:23,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 257 transitions, 1079 flow [2024-11-10 22:06:23,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 257 transitions, 1079 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:06:23,090 INFO L231 Difference]: Finished difference. Result has 130 places, 124 transitions, 409 flow [2024-11-10 22:06:23,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=409, PETRI_PLACES=130, PETRI_TRANSITIONS=124} [2024-11-10 22:06:23,090 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 26 predicate places. [2024-11-10 22:06:23,090 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 124 transitions, 409 flow [2024-11-10 22:06:23,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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) [2024-11-10 22:06:23,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:23,091 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-10 22:06:23,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:06:23,091 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-10 22:06:23,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash -379284784, now seen corresponding path program 1 times [2024-11-10 22:06:23,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:23,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974751959] [2024-11-10 22:06:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:23,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:23,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:06:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:06:23,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:06:23,105 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:06:23,105 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 33 remaining) [2024-11-10 22:06:23,106 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 33 remaining) [2024-11-10 22:06:23,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 33 remaining) [2024-11-10 22:06:23,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 33 remaining) [2024-11-10 22:06:23,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 33 remaining) [2024-11-10 22:06:23,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 33 remaining) [2024-11-10 22:06:23,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 33 remaining) [2024-11-10 22:06:23,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 33 remaining) [2024-11-10 22:06:23,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 33 remaining) [2024-11-10 22:06:23,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:06:23,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-10 22:06:23,111 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:06:23,111 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 22:06:23,160 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:06:23,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 160 transitions, 348 flow [2024-11-10 22:06:23,180 INFO L124 PetriNetUnfolderBase]: 37/183 cut-off events. [2024-11-10 22:06:23,180 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 22:06:23,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 183 events. 37/183 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 655 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 154. Up to 10 conditions per place. [2024-11-10 22:06:23,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 160 transitions, 348 flow [2024-11-10 22:06:23,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 160 transitions, 348 flow [2024-11-10 22:06:23,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:06:23,184 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;@3a3a6840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:06:23,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-10 22:06:23,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:06:23,188 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-10 22:06:23,188 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:06:23,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:23,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:23,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-10 22:06:23,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:23,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1770835313, now seen corresponding path program 1 times [2024-11-10 22:06:23,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:23,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149451783] [2024-11-10 22:06:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:23,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149451783] [2024-11-10 22:06:23,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149451783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:23,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:23,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:23,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555443884] [2024-11-10 22:06:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:23,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:23,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 160 [2024-11-10 22:06:23,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 160 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-10 22:06:23,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:23,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 160 [2024-11-10 22:06:23,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:30,130 INFO L124 PetriNetUnfolderBase]: 49964/102592 cut-off events. [2024-11-10 22:06:30,131 INFO L125 PetriNetUnfolderBase]: For 6683/6683 co-relation queries the response was YES. [2024-11-10 22:06:30,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163548 conditions, 102592 events. 49964/102592 cut-off events. For 6683/6683 co-relation queries the response was YES. Maximal size of possible extension queue 3487. Compared 1201022 event pairs, 18232 based on Foata normal form. 28990/117506 useless extension candidates. Maximal degree in co-relation 22530. Up to 35494 conditions per place. [2024-11-10 22:06:30,918 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 75 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2024-11-10 22:06:30,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 177 transitions, 557 flow [2024-11-10 22:06:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2024-11-10 22:06:30,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2024-11-10 22:06:30,920 INFO L175 Difference]: Start difference. First operand has 136 places, 160 transitions, 348 flow. Second operand 3 states and 415 transitions. [2024-11-10 22:06:30,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 177 transitions, 557 flow [2024-11-10 22:06:30,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 177 transitions, 545 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-10 22:06:30,925 INFO L231 Difference]: Finished difference. Result has 137 places, 142 transitions, 318 flow [2024-11-10 22:06:30,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=137, PETRI_TRANSITIONS=142} [2024-11-10 22:06:30,926 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 1 predicate places. [2024-11-10 22:06:30,926 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 318 flow [2024-11-10 22:06:30,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-10 22:06:30,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:30,926 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:30,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:06:30,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-10 22:06:30,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -162402684, now seen corresponding path program 1 times [2024-11-10 22:06:30,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:30,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549435191] [2024-11-10 22:06:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:30,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:06:30,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:30,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549435191] [2024-11-10 22:06:30,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549435191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:30,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:30,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:30,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252918738] [2024-11-10 22:06:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:30,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:30,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:30,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 160 [2024-11-10 22:06:30,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2024-11-10 22:06:30,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:30,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 160 [2024-11-10 22:06:30,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:43,633 INFO L124 PetriNetUnfolderBase]: 92094/188085 cut-off events. [2024-11-10 22:06:43,633 INFO L125 PetriNetUnfolderBase]: For 14382/14382 co-relation queries the response was YES. [2024-11-10 22:06:44,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305127 conditions, 188085 events. 92094/188085 cut-off events. For 14382/14382 co-relation queries the response was YES. Maximal size of possible extension queue 5673. Compared 2336823 event pairs, 34276 based on Foata normal form. 1419/163935 useless extension candidates. Maximal degree in co-relation 137927. Up to 65392 conditions per place. [2024-11-10 22:06:45,559 INFO L140 encePairwiseOnDemand]: 156/160 looper letters, 76 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2024-11-10 22:06:45,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 178 transitions, 564 flow [2024-11-10 22:06:45,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-11-10 22:06:45,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7875 [2024-11-10 22:06:45,560 INFO L175 Difference]: Start difference. First operand has 137 places, 142 transitions, 318 flow. Second operand 3 states and 378 transitions. [2024-11-10 22:06:45,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 178 transitions, 564 flow [2024-11-10 22:06:45,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 178 transitions, 560 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:06:45,578 INFO L231 Difference]: Finished difference. Result has 139 places, 143 transitions, 330 flow [2024-11-10 22:06:45,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=139, PETRI_TRANSITIONS=143} [2024-11-10 22:06:45,579 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 3 predicate places. [2024-11-10 22:06:45,579 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 143 transitions, 330 flow [2024-11-10 22:06:45,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2024-11-10 22:06:45,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:45,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:45,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:06:45,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-10 22:06:45,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1647619721, now seen corresponding path program 1 times [2024-11-10 22:06:45,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:45,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126675640] [2024-11-10 22:06:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:45,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126675640] [2024-11-10 22:06:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126675640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:45,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:45,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:06:45,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289539683] [2024-11-10 22:06:45,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:45,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:06:45,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:45,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:06:45,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:06:45,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 160 [2024-11-10 22:06:45,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 143 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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) [2024-11-10 22:06:45,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:45,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 160 [2024-11-10 22:06:45,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand