./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-lit/qw2004-2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-lit/qw2004-2b.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 f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:42:46,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:42:46,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:42:46,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:42:46,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:42:46,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:42:46,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:42:46,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:42:46,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:42:46,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:42:46,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:42:46,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:42:46,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:42:46,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:42:46,137 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:42:46,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:42:46,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:42:46,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:42:46,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:42:46,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:42:46,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:42:46,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:42:46,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:42:46,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:42:46,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:42:46,143 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:42:46,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:42:46,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:42:46,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:42:46,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:42:46,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:42:46,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:42:46,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:42:46,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:42:46,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:42:46,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:42:46,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:42:46,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:42:46,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:42:46,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:42:46,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:42:46,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:42:46,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:42:46,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:42:46,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f17f6182d2330561fe6717b6a061d0dded698483f9e32b37a3b36e1144855a29 [2024-11-17 07:42:46,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:42:46,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:42:46,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:42:46,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:42:46,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:42:46,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/qw2004-2b.i [2024-11-17 07:42:47,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:42:47,752 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:42:47,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/qw2004-2b.i [2024-11-17 07:42:47,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbf2b06a/9a0b3edad3344618a07cd1a04c3ba331/FLAG00289caf1 [2024-11-17 07:42:48,120 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbf2b06a/9a0b3edad3344618a07cd1a04c3ba331 [2024-11-17 07:42:48,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:42:48,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:42:48,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:42:48,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:42:48,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:42:48,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3417d60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48, skipping insertion in model container [2024-11-17 07:42:48,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:42:48,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:42:48,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:42:48,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:42:48,582 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:42:48,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48 WrapperNode [2024-11-17 07:42:48,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:42:48,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:42:48,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:42:48,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:42:48,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,623 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 122 [2024-11-17 07:42:48,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:42:48,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:42:48,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:42:48,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:42:48,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,642 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:42:48,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,645 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:42:48,649 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:42:48,649 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:42:48,649 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:42:48,650 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (1/1) ... [2024-11-17 07:42:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:42:48,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:42:48,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:42:48,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:42:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2024-11-17 07:42:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2024-11-17 07:42:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:42:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:42:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:42:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:42:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:42:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:42:48,727 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:42:48,819 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:42:48,821 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:42:48,972 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:42:48,972 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:42:49,066 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:42:49,066 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:42:49,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:42:49 BoogieIcfgContainer [2024-11-17 07:42:49,067 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:42:49,068 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:42:49,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:42:49,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:42:49,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:42:48" (1/3) ... [2024-11-17 07:42:49,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4c2261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:42:49, skipping insertion in model container [2024-11-17 07:42:49,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:42:48" (2/3) ... [2024-11-17 07:42:49,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4c2261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:42:49, skipping insertion in model container [2024-11-17 07:42:49,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:42:49" (3/3) ... [2024-11-17 07:42:49,073 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2024-11-17 07:42:49,084 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:42:49,084 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-17 07:42:49,084 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:42:49,110 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 07:42:49,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 41 transitions, 86 flow [2024-11-17 07:42:49,158 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2024-11-17 07:42:49,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:42:49,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 83 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-17 07:42:49,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 41 transitions, 86 flow [2024-11-17 07:42:49,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 83 flow [2024-11-17 07:42:49,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:42:49,176 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;@76ec552e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:42:49,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-17 07:42:49,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:42:49,179 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-17 07:42:49,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:42:49,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:49,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:42:49,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:49,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:49,188 INFO L85 PathProgramCache]: Analyzing trace with hash 842879134, now seen corresponding path program 1 times [2024-11-17 07:42:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158054799] [2024-11-17 07:42:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:49,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:49,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158054799] [2024-11-17 07:42:49,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158054799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:49,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:49,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:42:49,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258790062] [2024-11-17 07:42:49,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:49,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:42:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:42:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:42:49,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:49,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:49,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:49,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:49,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:49,590 INFO L124 PetriNetUnfolderBase]: 212/474 cut-off events. [2024-11-17 07:42:49,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:42:49,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 474 events. 212/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2319 event pairs, 72 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 878. Up to 357 conditions per place. [2024-11-17 07:42:49,599 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 42 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2024-11-17 07:42:49,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 205 flow [2024-11-17 07:42:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:42:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:42:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-17 07:42:49,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6504065040650406 [2024-11-17 07:42:49,609 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 83 flow. Second operand 3 states and 80 transitions. [2024-11-17 07:42:49,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 205 flow [2024-11-17 07:42:49,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:42:49,613 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 114 flow [2024-11-17 07:42:49,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2024-11-17 07:42:49,617 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2024-11-17 07:42:49,617 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 114 flow [2024-11-17 07:42:49,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:49,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:49,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:49,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:42:49,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:49,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash 342615071, now seen corresponding path program 1 times [2024-11-17 07:42:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:49,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854153202] [2024-11-17 07:42:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:49,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:49,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:49,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854153202] [2024-11-17 07:42:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854153202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:49,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:49,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:42:49,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339553947] [2024-11-17 07:42:49,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:49,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:42:49,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:49,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:42:49,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:42:49,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:49,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:49,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:49,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:49,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:49,855 INFO L124 PetriNetUnfolderBase]: 221/491 cut-off events. [2024-11-17 07:42:49,855 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-17 07:42:49,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 491 events. 221/491 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2431 event pairs, 72 based on Foata normal form. 9/420 useless extension candidates. Maximal degree in co-relation 1015. Up to 356 conditions per place. [2024-11-17 07:42:49,859 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 53 selfloop transitions, 7 changer transitions 0/69 dead transitions. [2024-11-17 07:42:49,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 297 flow [2024-11-17 07:42:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:42:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:42:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 114 transitions. [2024-11-17 07:42:49,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5560975609756098 [2024-11-17 07:42:49,863 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 114 flow. Second operand 5 states and 114 transitions. [2024-11-17 07:42:49,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 297 flow [2024-11-17 07:42:49,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:42:49,866 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 154 flow [2024-11-17 07:42:49,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-11-17 07:42:49,868 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-17 07:42:49,868 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 154 flow [2024-11-17 07:42:49,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:49,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:49,869 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:49,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:42:49,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:49,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash 513714279, now seen corresponding path program 1 times [2024-11-17 07:42:49,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:49,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580200666] [2024-11-17 07:42:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:49,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:49,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:49,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580200666] [2024-11-17 07:42:49,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580200666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:49,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:49,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:42:49,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532422442] [2024-11-17 07:42:49,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:49,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:42:49,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:42:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:42:49,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-11-17 07:42:49,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:49,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:49,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-11-17 07:42:49,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:50,081 INFO L124 PetriNetUnfolderBase]: 257/550 cut-off events. [2024-11-17 07:42:50,081 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-11-17 07:42:50,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1260 conditions, 550 events. 257/550 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2778 event pairs, 64 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 1245. Up to 435 conditions per place. [2024-11-17 07:42:50,086 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 63 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2024-11-17 07:42:50,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 74 transitions, 371 flow [2024-11-17 07:42:50,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:42:50,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:42:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2024-11-17 07:42:50,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5853658536585366 [2024-11-17 07:42:50,087 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 154 flow. Second operand 4 states and 96 transitions. [2024-11-17 07:42:50,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 74 transitions, 371 flow [2024-11-17 07:42:50,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 74 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:42:50,091 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 166 flow [2024-11-17 07:42:50,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-17 07:42:50,092 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-11-17 07:42:50,092 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 166 flow [2024-11-17 07:42:50,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:50,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:50,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:42:50,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:50,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -352636417, now seen corresponding path program 2 times [2024-11-17 07:42:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:50,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647917065] [2024-11-17 07:42:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:50,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647917065] [2024-11-17 07:42:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647917065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:42:50,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219277756] [2024-11-17 07:42:50,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:50,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:42:50,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:50,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:42:50,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:42:50,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:50,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:50,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:50,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:50,369 INFO L124 PetriNetUnfolderBase]: 276/615 cut-off events. [2024-11-17 07:42:50,369 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-17 07:42:50,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 615 events. 276/615 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3260 event pairs, 79 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1387. Up to 315 conditions per place. [2024-11-17 07:42:50,372 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 14 changer transitions 2/97 dead transitions. [2024-11-17 07:42:50,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 97 transitions, 480 flow [2024-11-17 07:42:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:42:50,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:42:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2024-11-17 07:42:50,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5505226480836237 [2024-11-17 07:42:50,374 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 166 flow. Second operand 7 states and 158 transitions. [2024-11-17 07:42:50,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 97 transitions, 480 flow [2024-11-17 07:42:50,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 97 transitions, 475 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:42:50,378 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 246 flow [2024-11-17 07:42:50,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2024-11-17 07:42:50,380 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2024-11-17 07:42:50,380 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 246 flow [2024-11-17 07:42:50,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:50,381 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:50,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:42:50,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:50,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash 584477154, now seen corresponding path program 1 times [2024-11-17 07:42:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:50,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650982863] [2024-11-17 07:42:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:50,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:50,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650982863] [2024-11-17 07:42:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650982863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:50,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:42:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90390994] [2024-11-17 07:42:50,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:50,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:42:50,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:42:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:42:50,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:50,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:50,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:50,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:50,603 INFO L124 PetriNetUnfolderBase]: 283/637 cut-off events. [2024-11-17 07:42:50,603 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-11-17 07:42:50,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 637 events. 283/637 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3373 event pairs, 84 based on Foata normal form. 24/612 useless extension candidates. Maximal degree in co-relation 1535. Up to 373 conditions per place. [2024-11-17 07:42:50,606 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 61 selfloop transitions, 9 changer transitions 2/81 dead transitions. [2024-11-17 07:42:50,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 454 flow [2024-11-17 07:42:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:42:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:42:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 131 transitions. [2024-11-17 07:42:50,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.532520325203252 [2024-11-17 07:42:50,609 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 246 flow. Second operand 6 states and 131 transitions. [2024-11-17 07:42:50,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 454 flow [2024-11-17 07:42:50,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 81 transitions, 428 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 07:42:50,615 INFO L231 Difference]: Finished difference. Result has 62 places, 49 transitions, 223 flow [2024-11-17 07:42:50,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2024-11-17 07:42:50,617 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 22 predicate places. [2024-11-17 07:42:50,617 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 223 flow [2024-11-17 07:42:50,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:50,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:50,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:42:50,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:50,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1688186781, now seen corresponding path program 1 times [2024-11-17 07:42:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:50,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968839777] [2024-11-17 07:42:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:50,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:50,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968839777] [2024-11-17 07:42:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968839777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:50,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:50,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:42:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134095000] [2024-11-17 07:42:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:50,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:42:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:50,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:42:50,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:42:50,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:50,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:50,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:50,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:50,803 INFO L124 PetriNetUnfolderBase]: 239/554 cut-off events. [2024-11-17 07:42:50,804 INFO L125 PetriNetUnfolderBase]: For 425/425 co-relation queries the response was YES. [2024-11-17 07:42:50,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 554 events. 239/554 cut-off events. For 425/425 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2960 event pairs, 48 based on Foata normal form. 9/526 useless extension candidates. Maximal degree in co-relation 1345. Up to 216 conditions per place. [2024-11-17 07:42:50,819 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 50 selfloop transitions, 9 changer transitions 21/89 dead transitions. [2024-11-17 07:42:50,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 89 transitions, 479 flow [2024-11-17 07:42:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:42:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:42:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 147 transitions. [2024-11-17 07:42:50,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5121951219512195 [2024-11-17 07:42:50,821 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 223 flow. Second operand 7 states and 147 transitions. [2024-11-17 07:42:50,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 89 transitions, 479 flow [2024-11-17 07:42:50,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 89 transitions, 464 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-17 07:42:50,823 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 204 flow [2024-11-17 07:42:50,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=204, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2024-11-17 07:42:50,824 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2024-11-17 07:42:50,824 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 204 flow [2024-11-17 07:42:50,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:50,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:50,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:42:50,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:50,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 585540054, now seen corresponding path program 1 times [2024-11-17 07:42:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57398595] [2024-11-17 07:42:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:50,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57398595] [2024-11-17 07:42:50,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57398595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:50,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:50,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:42:50,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100914910] [2024-11-17 07:42:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:50,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:42:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:50,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:42:50,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:42:50,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:50,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:50,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:50,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:50,953 INFO L124 PetriNetUnfolderBase]: 148/355 cut-off events. [2024-11-17 07:42:50,953 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2024-11-17 07:42:50,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 355 events. 148/355 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1674 event pairs, 34 based on Foata normal form. 7/338 useless extension candidates. Maximal degree in co-relation 917. Up to 230 conditions per place. [2024-11-17 07:42:50,955 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 48 selfloop transitions, 6 changer transitions 1/64 dead transitions. [2024-11-17 07:42:50,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 354 flow [2024-11-17 07:42:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:42:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:42:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-11-17 07:42:50,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45934959349593496 [2024-11-17 07:42:50,956 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 204 flow. Second operand 6 states and 113 transitions. [2024-11-17 07:42:50,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 354 flow [2024-11-17 07:42:50,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 306 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-17 07:42:50,958 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 164 flow [2024-11-17 07:42:50,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2024-11-17 07:42:50,959 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2024-11-17 07:42:50,959 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 164 flow [2024-11-17 07:42:50,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:50,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:50,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:50,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:42:50,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:50,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1071248060, now seen corresponding path program 1 times [2024-11-17 07:42:50,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:50,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130442677] [2024-11-17 07:42:50,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:50,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:51,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:51,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130442677] [2024-11-17 07:42:51,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130442677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:51,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:51,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:42:51,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887950152] [2024-11-17 07:42:51,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:51,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:42:51,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:51,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:42:51,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:42:51,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-11-17 07:42:51,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:51,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-11-17 07:42:51,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:51,073 INFO L124 PetriNetUnfolderBase]: 163/368 cut-off events. [2024-11-17 07:42:51,073 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2024-11-17 07:42:51,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 368 events. 163/368 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1726 event pairs, 24 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 879. Up to 222 conditions per place. [2024-11-17 07:42:51,074 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 48 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-11-17 07:42:51,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 60 transitions, 317 flow [2024-11-17 07:42:51,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:42:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:42:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-17 07:42:51,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-17 07:42:51,075 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 164 flow. Second operand 4 states and 80 transitions. [2024-11-17 07:42:51,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 60 transitions, 317 flow [2024-11-17 07:42:51,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 297 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-17 07:42:51,077 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 152 flow [2024-11-17 07:42:51,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-17 07:42:51,078 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 14 predicate places. [2024-11-17 07:42:51,078 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 152 flow [2024-11-17 07:42:51,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:51,078 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:51,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:42:51,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:51,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:51,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1321065848, now seen corresponding path program 1 times [2024-11-17 07:42:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984426115] [2024-11-17 07:42:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:51,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:51,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984426115] [2024-11-17 07:42:51,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984426115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:51,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:51,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:42:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558809222] [2024-11-17 07:42:51,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:51,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:42:51,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:51,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:42:51,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:42:51,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:51,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:51,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:51,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:51,251 INFO L124 PetriNetUnfolderBase]: 134/342 cut-off events. [2024-11-17 07:42:51,254 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-17 07:42:51,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 342 events. 134/342 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1607 event pairs, 9 based on Foata normal form. 7/335 useless extension candidates. Maximal degree in co-relation 775. Up to 109 conditions per place. [2024-11-17 07:42:51,255 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 63 selfloop transitions, 12 changer transitions 1/84 dead transitions. [2024-11-17 07:42:51,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 393 flow [2024-11-17 07:42:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:42:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:42:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-11-17 07:42:51,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44986449864498645 [2024-11-17 07:42:51,257 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 152 flow. Second operand 9 states and 166 transitions. [2024-11-17 07:42:51,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 393 flow [2024-11-17 07:42:51,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 379 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:42:51,263 INFO L231 Difference]: Finished difference. Result has 58 places, 41 transitions, 157 flow [2024-11-17 07:42:51,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=41} [2024-11-17 07:42:51,263 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-17 07:42:51,264 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 41 transitions, 157 flow [2024-11-17 07:42:51,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:51,265 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:51,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:42:51,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:51,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1482202816, now seen corresponding path program 2 times [2024-11-17 07:42:51,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:51,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290709259] [2024-11-17 07:42:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:51,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:51,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290709259] [2024-11-17 07:42:51,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290709259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:51,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:51,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:42:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767453792] [2024-11-17 07:42:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:51,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:42:51,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:42:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:42:51,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:51,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 41 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:51,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:51,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:51,435 INFO L124 PetriNetUnfolderBase]: 125/320 cut-off events. [2024-11-17 07:42:51,435 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2024-11-17 07:42:51,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 320 events. 125/320 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1452 event pairs, 43 based on Foata normal form. 9/315 useless extension candidates. Maximal degree in co-relation 715. Up to 125 conditions per place. [2024-11-17 07:42:51,436 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 24 selfloop transitions, 3 changer transitions 41/74 dead transitions. [2024-11-17 07:42:51,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 353 flow [2024-11-17 07:42:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:42:51,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:42:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-11-17 07:42:51,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45121951219512196 [2024-11-17 07:42:51,437 INFO L175 Difference]: Start difference. First operand has 58 places, 41 transitions, 157 flow. Second operand 8 states and 148 transitions. [2024-11-17 07:42:51,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 353 flow [2024-11-17 07:42:51,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 317 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-17 07:42:51,439 INFO L231 Difference]: Finished difference. Result has 51 places, 27 transitions, 78 flow [2024-11-17 07:42:51,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=78, PETRI_PLACES=51, PETRI_TRANSITIONS=27} [2024-11-17 07:42:51,441 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-11-17 07:42:51,441 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 27 transitions, 78 flow [2024-11-17 07:42:51,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:42:51,441 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:51,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:42:51,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:42:51,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:42:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash -437229625, now seen corresponding path program 1 times [2024-11-17 07:42:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:42:51,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046063468] [2024-11-17 07:42:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:42:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:42:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:42:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:42:51,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:42:51,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046063468] [2024-11-17 07:42:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046063468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:42:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:42:51,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:42:51,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138125247] [2024-11-17 07:42:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:42:51,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:42:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:42:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:42:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:42:51,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-17 07:42:51,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 27 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:42:51,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-17 07:42:51,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:42:51,555 INFO L124 PetriNetUnfolderBase]: 59/155 cut-off events. [2024-11-17 07:42:51,556 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-17 07:42:51,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 155 events. 59/155 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 500 event pairs, 2 based on Foata normal form. 7/158 useless extension candidates. Maximal degree in co-relation 307. Up to 70 conditions per place. [2024-11-17 07:42:51,556 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2024-11-17 07:42:51,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 186 flow [2024-11-17 07:42:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:42:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:42:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 110 transitions. [2024-11-17 07:42:51,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3832752613240418 [2024-11-17 07:42:51,557 INFO L175 Difference]: Start difference. First operand has 51 places, 27 transitions, 78 flow. Second operand 7 states and 110 transitions. [2024-11-17 07:42:51,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 186 flow [2024-11-17 07:42:51,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 176 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:42:51,558 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-11-17 07:42:51,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2024-11-17 07:42:51,558 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2024-11-17 07:42:51,558 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-11-17 07:42:51,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:42:51,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-17 07:42:51,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-17 07:42:51,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-17 07:42:51,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-17 07:42:51,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2024-11-17 07:42:51,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-17 07:42:51,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-17 07:42:51,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-17 07:42:51,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-17 07:42:51,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:42:51,566 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:42:51,572 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:42:51,572 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:42:51,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:42:51 BasicIcfg [2024-11-17 07:42:51,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:42:51,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:42:51,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:42:51,578 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:42:51,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:42:49" (3/4) ... [2024-11-17 07:42:51,580 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:42:51,582 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure BCSP_PnpStop [2024-11-17 07:42:51,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-17 07:42:51,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-17 07:42:51,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 07:42:51,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:42:51,647 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:42:51,648 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:42:51,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:42:51,648 INFO L158 Benchmark]: Toolchain (without parser) took 3524.55ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 91.9MB in the beginning and 157.0MB in the end (delta: -65.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:42:51,648 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 161.5MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:42:51,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.66ms. Allocated memory is still 161.5MB. Free memory was 91.7MB in the beginning and 125.5MB in the end (delta: -33.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-17 07:42:51,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.70ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 123.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:42:51,649 INFO L158 Benchmark]: Boogie Preprocessor took 23.18ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:42:51,649 INFO L158 Benchmark]: IcfgBuilder took 417.35ms. Allocated memory is still 161.5MB. Free memory was 121.4MB in the beginning and 93.4MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-17 07:42:51,649 INFO L158 Benchmark]: TraceAbstraction took 2509.27ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 92.8MB in the beginning and 161.2MB in the end (delta: -68.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:42:51,649 INFO L158 Benchmark]: Witness Printer took 70.26ms. Allocated memory is still 220.2MB. Free memory was 161.2MB in the beginning and 157.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:42:51,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 161.5MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.66ms. Allocated memory is still 161.5MB. Free memory was 91.7MB in the beginning and 125.5MB in the end (delta: -33.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.70ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 123.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.18ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 417.35ms. Allocated memory is still 161.5MB. Free memory was 121.4MB in the beginning and 93.4MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2509.27ms. Allocated memory was 161.5MB in the beginning and 220.2MB in the end (delta: 58.7MB). Free memory was 92.8MB in the beginning and 161.2MB in the end (delta: -68.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.26ms. Allocated memory is still 220.2MB. Free memory was 161.2MB in the beginning and 157.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 719]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 404 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 401 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1388 IncrementalHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 4 mSDtfsCounter, 1388 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=4, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:42:51,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE