./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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-C-DAC/pthread-demo-datarace-3.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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:56:32,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:56:32,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:56:32,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:56:32,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:56:32,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:56:32,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:56:32,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:56:32,292 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:56:32,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:56:32,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:56:32,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:56:32,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:56:32,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:56:32,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:56:32,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:56:32,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:56:32,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:56:32,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:56:32,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:56:32,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:56:32,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:56:32,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:56:32,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:56:32,301 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:56:32,301 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:56:32,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:56:32,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:56:32,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:56:32,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:56:32,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:56:32,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:56:32,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:56:32,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:56:32,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:56:32,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:56:32,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:56:32,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:56:32,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:56:32,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:56:32,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:56:32,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:56:32,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:56:32,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:56:32,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2024-11-19 13:56:32,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:56:32,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:56:32,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:56:32,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:56:32,562 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:56:32,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-19 13:56:33,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:56:34,196 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:56:34,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2024-11-19 13:56:34,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b339bfac/f9f7efffd45140dba7c6385eaf74cb48/FLAG2f0754c56 [2024-11-19 13:56:34,218 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b339bfac/f9f7efffd45140dba7c6385eaf74cb48 [2024-11-19 13:56:34,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:56:34,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:56:34,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:56:34,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:56:34,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:56:34,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37188372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34, skipping insertion in model container [2024-11-19 13:56:34,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:56:34,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:56:34,688 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:56:34,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:56:34,857 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:56:34,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34 WrapperNode [2024-11-19 13:56:34,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:56:34,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:56:34,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:56:34,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:56:34,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,908 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2024-11-19 13:56:34,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:56:34,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:56:34,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:56:34,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:56:34,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,945 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]. [2024-11-19 13:56:34,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:56:34,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:56:34,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:56:34,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:56:34,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (1/1) ... [2024-11-19 13:56:34,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:56:34,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:35,000 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) [2024-11-19 13:56:35,009 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 [2024-11-19 13:56:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 13:56:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 13:56:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2024-11-19 13:56:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2024-11-19 13:56:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:56:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:56:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:56:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:56:35,050 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:56:35,151 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:56:35,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:56:35,320 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:56:35,320 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:56:35,581 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:56:35,581 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 13:56:35,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:56:35 BoogieIcfgContainer [2024-11-19 13:56:35,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:56:35,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:56:35,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:56:35,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:56:35,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:56:34" (1/3) ... [2024-11-19 13:56:35,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e710474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:56:35, skipping insertion in model container [2024-11-19 13:56:35,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:56:34" (2/3) ... [2024-11-19 13:56:35,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e710474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:56:35, skipping insertion in model container [2024-11-19 13:56:35,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:56:35" (3/3) ... [2024-11-19 13:56:35,588 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2024-11-19 13:56:35,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:56:35,602 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 13:56:35,602 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:56:35,629 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 13:56:35,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2024-11-19 13:56:35,673 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-19 13:56:35,673 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 13:56:35,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-19 13:56:35,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2024-11-19 13:56:35,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2024-11-19 13:56:35,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:56:35,690 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;@376ff356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:56:35,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 13:56:35,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:56:35,694 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-19 13:56:35,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:56:35,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:35,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 13:56:35,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:35,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash 366041552, now seen corresponding path program 1 times [2024-11-19 13:56:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:35,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76372115] [2024-11-19 13:56:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:35,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76372115] [2024-11-19 13:56:35,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76372115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:35,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:35,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:56:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078807478] [2024-11-19 13:56:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:35,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:56:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:36,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:56:36,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:56:36,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-19 13:56:36,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-19 13:56:36,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:36,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-19 13:56:36,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:36,097 INFO L124 PetriNetUnfolderBase]: 42/133 cut-off events. [2024-11-19 13:56:36,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:56:36,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 133 events. 42/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 549 event pairs, 6 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 213. Up to 66 conditions per place. [2024-11-19 13:56:36,101 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-11-19 13:56:36,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2024-11-19 13:56:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:56:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:56:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-19 13:56:36,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2024-11-19 13:56:36,113 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2024-11-19 13:56:36,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2024-11-19 13:56:36,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:56:36,117 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2024-11-19 13:56:36,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-19 13:56:36,121 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-19 13:56:36,122 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2024-11-19 13:56:36,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-19 13:56:36,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:36,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 13:56:36,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:56:36,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:36,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:36,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1536767146, now seen corresponding path program 1 times [2024-11-19 13:56:36,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:36,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921337243] [2024-11-19 13:56:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:36,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:36,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921337243] [2024-11-19 13:56:36,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921337243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:36,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:36,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:56:36,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222370719] [2024-11-19 13:56:36,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:36,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:56:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:56:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:56:36,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:36,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-19 13:56:36,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:36,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:36,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:36,417 INFO L124 PetriNetUnfolderBase]: 68/190 cut-off events. [2024-11-19 13:56:36,419 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 13:56:36,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 190 events. 68/190 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 879 event pairs, 18 based on Foata normal form. 8/159 useless extension candidates. Maximal degree in co-relation 371. Up to 107 conditions per place. [2024-11-19 13:56:36,421 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2024-11-19 13:56:36,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 182 flow [2024-11-19 13:56:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:56:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:56:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-11-19 13:56:36,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2024-11-19 13:56:36,423 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 97 transitions. [2024-11-19 13:56:36,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 182 flow [2024-11-19 13:56:36,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:56:36,428 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2024-11-19 13:56:36,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-19 13:56:36,429 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-19 13:56:36,430 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2024-11-19 13:56:36,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-19 13:56:36,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:36,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:36,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 13:56:36,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:36,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash -421374207, now seen corresponding path program 1 times [2024-11-19 13:56:36,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:36,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621946609] [2024-11-19 13:56:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:36,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:36,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:36,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621946609] [2024-11-19 13:56:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621946609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859639996] [2024-11-19 13:56:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:56:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:56:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:56:36,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-19 13:56:36,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:56:36,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:36,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-19 13:56:36,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:36,576 INFO L124 PetriNetUnfolderBase]: 78/216 cut-off events. [2024-11-19 13:56:36,577 INFO L125 PetriNetUnfolderBase]: For 63/64 co-relation queries the response was YES. [2024-11-19 13:56:36,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 216 events. 78/216 cut-off events. For 63/64 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1024 event pairs, 23 based on Foata normal form. 13/189 useless extension candidates. Maximal degree in co-relation 473. Up to 97 conditions per place. [2024-11-19 13:56:36,579 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-19 13:56:36,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 242 flow [2024-11-19 13:56:36,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:56:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:56:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-19 13:56:36,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-19 13:56:36,580 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 83 transitions. [2024-11-19 13:56:36,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 242 flow [2024-11-19 13:56:36,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:56:36,582 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2024-11-19 13:56:36,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-11-19 13:56:36,582 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2024-11-19 13:56:36,583 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2024-11-19 13:56:36,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:56:36,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:36,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:36,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:56:36,584 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:36,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:36,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1802373294, now seen corresponding path program 1 times [2024-11-19 13:56:36,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:36,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079401321] [2024-11-19 13:56:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:36,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:36,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079401321] [2024-11-19 13:56:36,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079401321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:36,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:36,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:36,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828857178] [2024-11-19 13:56:36,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:36,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:56:36,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:36,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:56:36,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:56:36,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:36,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:36,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:36,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:36,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:36,790 INFO L124 PetriNetUnfolderBase]: 138/423 cut-off events. [2024-11-19 13:56:36,790 INFO L125 PetriNetUnfolderBase]: For 253/274 co-relation queries the response was YES. [2024-11-19 13:56:36,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 423 events. 138/423 cut-off events. For 253/274 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2366 event pairs, 19 based on Foata normal form. 17/382 useless extension candidates. Maximal degree in co-relation 1054. Up to 117 conditions per place. [2024-11-19 13:56:36,793 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 46 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2024-11-19 13:56:36,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 383 flow [2024-11-19 13:56:36,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:56:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:56:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-19 13:56:36,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-19 13:56:36,799 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 125 transitions. [2024-11-19 13:56:36,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 383 flow [2024-11-19 13:56:36,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:56:36,801 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2024-11-19 13:56:36,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-11-19 13:56:36,802 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2024-11-19 13:56:36,806 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2024-11-19 13:56:36,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:36,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:36,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:36,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:56:36,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:36,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1996177808, now seen corresponding path program 1 times [2024-11-19 13:56:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:36,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171012209] [2024-11-19 13:56:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:36,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171012209] [2024-11-19 13:56:36,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171012209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:36,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:36,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299770889] [2024-11-19 13:56:36,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:36,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:56:36,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:36,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:56:36,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:56:36,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:36,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:36,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:36,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:36,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:37,080 INFO L124 PetriNetUnfolderBase]: 160/515 cut-off events. [2024-11-19 13:56:37,081 INFO L125 PetriNetUnfolderBase]: For 852/867 co-relation queries the response was YES. [2024-11-19 13:56:37,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 515 events. 160/515 cut-off events. For 852/867 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3086 event pairs, 23 based on Foata normal form. 29/521 useless extension candidates. Maximal degree in co-relation 1467. Up to 239 conditions per place. [2024-11-19 13:56:37,084 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 41 selfloop transitions, 20 changer transitions 0/73 dead transitions. [2024-11-19 13:56:37,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 497 flow [2024-11-19 13:56:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:56:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:56:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-19 13:56:37,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-19 13:56:37,086 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 136 transitions. [2024-11-19 13:56:37,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 497 flow [2024-11-19 13:56:37,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 485 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-19 13:56:37,090 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2024-11-19 13:56:37,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-19 13:56:37,091 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-19 13:56:37,092 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2024-11-19 13:56:37,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:37,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:37,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:37,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:56:37,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:37,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 863913689, now seen corresponding path program 1 times [2024-11-19 13:56:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175318951] [2024-11-19 13:56:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:37,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:37,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:37,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175318951] [2024-11-19 13:56:37,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175318951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:37,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:37,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:37,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850969700] [2024-11-19 13:56:37,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:37,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:56:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:37,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:56:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:56:37,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-19 13:56:37,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:56:37,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:37,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-19 13:56:37,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:37,240 INFO L124 PetriNetUnfolderBase]: 195/592 cut-off events. [2024-11-19 13:56:37,240 INFO L125 PetriNetUnfolderBase]: For 1746/1850 co-relation queries the response was YES. [2024-11-19 13:56:37,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 592 events. 195/592 cut-off events. For 1746/1850 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3772 event pairs, 55 based on Foata normal form. 46/601 useless extension candidates. Maximal degree in co-relation 1923. Up to 264 conditions per place. [2024-11-19 13:56:37,244 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 47 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-19 13:56:37,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 618 flow [2024-11-19 13:56:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:56:37,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:56:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-19 13:56:37,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-19 13:56:37,245 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 85 transitions. [2024-11-19 13:56:37,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 618 flow [2024-11-19 13:56:37,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 595 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-19 13:56:37,250 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2024-11-19 13:56:37,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-19 13:56:37,251 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2024-11-19 13:56:37,251 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2024-11-19 13:56:37,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:56:37,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:37,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:37,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:56:37,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:37,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2139062292, now seen corresponding path program 1 times [2024-11-19 13:56:37,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:37,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103506185] [2024-11-19 13:56:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:37,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:37,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103506185] [2024-11-19 13:56:37,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103506185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:37,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:37,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:56:37,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074030015] [2024-11-19 13:56:37,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:37,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:56:37,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:37,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:56:37,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:56:37,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:37,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:37,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:37,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:37,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:37,457 INFO L124 PetriNetUnfolderBase]: 152/503 cut-off events. [2024-11-19 13:56:37,458 INFO L125 PetriNetUnfolderBase]: For 1368/1385 co-relation queries the response was YES. [2024-11-19 13:56:37,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 503 events. 152/503 cut-off events. For 1368/1385 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3104 event pairs, 36 based on Foata normal form. 39/529 useless extension candidates. Maximal degree in co-relation 1692. Up to 276 conditions per place. [2024-11-19 13:56:37,461 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 43 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-11-19 13:56:37,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 530 flow [2024-11-19 13:56:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:56:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:56:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-11-19 13:56:37,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-19 13:56:37,462 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 8 states and 132 transitions. [2024-11-19 13:56:37,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 530 flow [2024-11-19 13:56:37,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 67 transitions, 505 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-19 13:56:37,466 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 334 flow [2024-11-19 13:56:37,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-19 13:56:37,467 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-19 13:56:37,467 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 334 flow [2024-11-19 13:56:37,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:37,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:37,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:37,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:56:37,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:37,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash -790426157, now seen corresponding path program 1 times [2024-11-19 13:56:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:37,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417648477] [2024-11-19 13:56:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:37,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:37,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417648477] [2024-11-19 13:56:37,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417648477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:37,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:37,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:56:37,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164029442] [2024-11-19 13:56:37,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:37,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:56:37,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:37,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:56:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:56:37,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:37,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:37,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:37,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:37,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:37,648 INFO L124 PetriNetUnfolderBase]: 194/609 cut-off events. [2024-11-19 13:56:37,648 INFO L125 PetriNetUnfolderBase]: For 1459/1503 co-relation queries the response was YES. [2024-11-19 13:56:37,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 609 events. 194/609 cut-off events. For 1459/1503 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3736 event pairs, 28 based on Foata normal form. 42/642 useless extension candidates. Maximal degree in co-relation 2043. Up to 254 conditions per place. [2024-11-19 13:56:37,653 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 53 selfloop transitions, 25 changer transitions 0/91 dead transitions. [2024-11-19 13:56:37,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 719 flow [2024-11-19 13:56:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:56:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:56:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-11-19 13:56:37,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2024-11-19 13:56:37,654 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 334 flow. Second operand 10 states and 182 transitions. [2024-11-19 13:56:37,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 719 flow [2024-11-19 13:56:37,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 13:56:37,659 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 499 flow [2024-11-19 13:56:37,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-19 13:56:37,661 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2024-11-19 13:56:37,662 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 499 flow [2024-11-19 13:56:37,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:37,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:37,662 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:37,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 13:56:37,662 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:37,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1554354743, now seen corresponding path program 1 times [2024-11-19 13:56:37,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:37,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188725985] [2024-11-19 13:56:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:37,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:37,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:37,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188725985] [2024-11-19 13:56:37,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188725985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:37,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462608835] [2024-11-19 13:56:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:37,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:37,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:37,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:37,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:56:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:37,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:56:37,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:37,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:56:37,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462608835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:37,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:56:37,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-19 13:56:37,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883336464] [2024-11-19 13:56:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:37,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:56:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:56:37,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:56:37,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:37,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 499 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-19 13:56:37,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:37,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:37,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:38,056 INFO L124 PetriNetUnfolderBase]: 247/674 cut-off events. [2024-11-19 13:56:38,057 INFO L125 PetriNetUnfolderBase]: For 2772/2858 co-relation queries the response was YES. [2024-11-19 13:56:38,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2624 conditions, 674 events. 247/674 cut-off events. For 2772/2858 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4159 event pairs, 33 based on Foata normal form. 53/668 useless extension candidates. Maximal degree in co-relation 2594. Up to 279 conditions per place. [2024-11-19 13:56:38,062 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 48 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-19 13:56:38,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 78 transitions, 740 flow [2024-11-19 13:56:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:56:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:56:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-19 13:56:38,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-19 13:56:38,064 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 499 flow. Second operand 4 states and 71 transitions. [2024-11-19 13:56:38,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 78 transitions, 740 flow [2024-11-19 13:56:38,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 78 transitions, 674 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-11-19 13:56:38,069 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 463 flow [2024-11-19 13:56:38,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-19 13:56:38,070 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-19 13:56:38,070 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 463 flow [2024-11-19 13:56:38,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-19 13:56:38,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:38,070 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 13:56:38,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:56:38,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:38,272 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:38,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -940356396, now seen corresponding path program 1 times [2024-11-19 13:56:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:38,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099303779] [2024-11-19 13:56:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:56:38,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:38,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099303779] [2024-11-19 13:56:38,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099303779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:38,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:38,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370554751] [2024-11-19 13:56:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:38,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:56:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:56:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:56:38,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:38,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-19 13:56:38,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:38,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:38,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:38,436 INFO L124 PetriNetUnfolderBase]: 230/661 cut-off events. [2024-11-19 13:56:38,436 INFO L125 PetriNetUnfolderBase]: For 2146/2243 co-relation queries the response was YES. [2024-11-19 13:56:38,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 661 events. 230/661 cut-off events. For 2146/2243 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4027 event pairs, 23 based on Foata normal form. 66/707 useless extension candidates. Maximal degree in co-relation 2480. Up to 239 conditions per place. [2024-11-19 13:56:38,441 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 52 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2024-11-19 13:56:38,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 83 transitions, 738 flow [2024-11-19 13:56:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:56:38,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:56:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-19 13:56:38,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-11-19 13:56:38,443 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 463 flow. Second operand 4 states and 71 transitions. [2024-11-19 13:56:38,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 83 transitions, 738 flow [2024-11-19 13:56:38,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 83 transitions, 728 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:56:38,449 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 469 flow [2024-11-19 13:56:38,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2024-11-19 13:56:38,450 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-11-19 13:56:38,451 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 469 flow [2024-11-19 13:56:38,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-19 13:56:38,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:38,451 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:38,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:56:38,452 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:38,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:38,452 INFO L85 PathProgramCache]: Analyzing trace with hash 185181774, now seen corresponding path program 1 times [2024-11-19 13:56:38,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:38,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599766653] [2024-11-19 13:56:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:38,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:38,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:38,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599766653] [2024-11-19 13:56:38,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599766653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:38,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404178965] [2024-11-19 13:56:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:38,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:38,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:38,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:38,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:56:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:38,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:56:38,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:38,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:56:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404178965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:56:38,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:56:38,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:56:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290396694] [2024-11-19 13:56:38,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:56:38,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:56:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:38,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:56:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:56:38,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:38,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 469 flow. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:38,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:38,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:38,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:39,009 INFO L124 PetriNetUnfolderBase]: 343/1016 cut-off events. [2024-11-19 13:56:39,009 INFO L125 PetriNetUnfolderBase]: For 5036/5065 co-relation queries the response was YES. [2024-11-19 13:56:39,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 1016 events. 343/1016 cut-off events. For 5036/5065 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6270 event pairs, 16 based on Foata normal form. 106/1116 useless extension candidates. Maximal degree in co-relation 4145. Up to 272 conditions per place. [2024-11-19 13:56:39,045 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 82 selfloop transitions, 71 changer transitions 0/165 dead transitions. [2024-11-19 13:56:39,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 165 transitions, 1601 flow [2024-11-19 13:56:39,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 13:56:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 13:56:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 399 transitions. [2024-11-19 13:56:39,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-11-19 13:56:39,046 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 469 flow. Second operand 22 states and 399 transitions. [2024-11-19 13:56:39,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 165 transitions, 1601 flow [2024-11-19 13:56:39,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 165 transitions, 1568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:56:39,057 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1265 flow [2024-11-19 13:56:39,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1265, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2024-11-19 13:56:39,057 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2024-11-19 13:56:39,057 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1265 flow [2024-11-19 13:56:39,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:39,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:39,058 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:39,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 13:56:39,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 13:56:39,259 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:39,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash 756262837, now seen corresponding path program 1 times [2024-11-19 13:56:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:39,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043273212] [2024-11-19 13:56:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:39,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:39,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043273212] [2024-11-19 13:56:39,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043273212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:39,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976794585] [2024-11-19 13:56:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:39,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:39,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:39,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:39,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:56:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:39,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:56:39,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:39,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:56:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:39,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976794585] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:56:39,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:56:39,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-19 13:56:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30143204] [2024-11-19 13:56:39,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:56:39,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 13:56:39,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 13:56:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-19 13:56:39,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:39,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1265 flow. Second operand has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 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) [2024-11-19 13:56:39,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:39,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:39,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:40,249 INFO L124 PetriNetUnfolderBase]: 762/2297 cut-off events. [2024-11-19 13:56:40,250 INFO L125 PetriNetUnfolderBase]: For 23782/23905 co-relation queries the response was YES. [2024-11-19 13:56:40,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10440 conditions, 2297 events. 762/2297 cut-off events. For 23782/23905 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17791 event pairs, 28 based on Foata normal form. 217/2506 useless extension candidates. Maximal degree in co-relation 10395. Up to 560 conditions per place. [2024-11-19 13:56:40,264 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 169 selfloop transitions, 165 changer transitions 0/346 dead transitions. [2024-11-19 13:56:40,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 346 transitions, 4189 flow [2024-11-19 13:56:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-19 13:56:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-19 13:56:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 626 transitions. [2024-11-19 13:56:40,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2024-11-19 13:56:40,266 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1265 flow. Second operand 33 states and 626 transitions. [2024-11-19 13:56:40,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 346 transitions, 4189 flow [2024-11-19 13:56:40,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 346 transitions, 3624 flow, removed 270 selfloop flow, removed 5 redundant places. [2024-11-19 13:56:40,298 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2847 flow [2024-11-19 13:56:40,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2847, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2024-11-19 13:56:40,299 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2024-11-19 13:56:40,299 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2847 flow [2024-11-19 13:56:40,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 14 states have internal predecessors, (194), 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) [2024-11-19 13:56:40,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:40,299 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:40,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:56:40,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:40,503 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1718705938, now seen corresponding path program 1 times [2024-11-19 13:56:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470121965] [2024-11-19 13:56:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:40,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470121965] [2024-11-19 13:56:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470121965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987633095] [2024-11-19 13:56:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:40,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:40,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:40,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:40,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:56:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:40,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:56:40,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:40,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:56:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987633095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:40,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:56:40,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 13:56:40,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654343790] [2024-11-19 13:56:40,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:40,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:56:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:56:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:56:40,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2024-11-19 13:56:40,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2847 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:40,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:40,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2024-11-19 13:56:40,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:41,054 INFO L124 PetriNetUnfolderBase]: 781/2398 cut-off events. [2024-11-19 13:56:41,055 INFO L125 PetriNetUnfolderBase]: For 34363/34491 co-relation queries the response was YES. [2024-11-19 13:56:41,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11978 conditions, 2398 events. 781/2398 cut-off events. For 34363/34491 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19236 event pairs, 82 based on Foata normal form. 116/2443 useless extension candidates. Maximal degree in co-relation 11916. Up to 783 conditions per place. [2024-11-19 13:56:41,076 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 205 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-11-19 13:56:41,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 293 transitions, 4483 flow [2024-11-19 13:56:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:56:41,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:56:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-19 13:56:41,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-19 13:56:41,077 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2847 flow. Second operand 6 states and 115 transitions. [2024-11-19 13:56:41,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 293 transitions, 4483 flow [2024-11-19 13:56:41,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 293 transitions, 3622 flow, removed 372 selfloop flow, removed 12 redundant places. [2024-11-19 13:56:41,149 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2257 flow [2024-11-19 13:56:41,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2024-11-19 13:56:41,150 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2024-11-19 13:56:41,150 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2257 flow [2024-11-19 13:56:41,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:56:41,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:41,150 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 13:56:41,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:56:41,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:41,355 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:41,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:41,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1740276926, now seen corresponding path program 1 times [2024-11-19 13:56:41,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:41,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930960579] [2024-11-19 13:56:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:41,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:56:41,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:41,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930960579] [2024-11-19 13:56:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930960579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:56:41,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:56:41,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:56:41,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292723521] [2024-11-19 13:56:41,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:56:41,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:56:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:56:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:56:41,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:41,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2257 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-19 13:56:41,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:41,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:41,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:41,745 INFO L124 PetriNetUnfolderBase]: 870/2523 cut-off events. [2024-11-19 13:56:41,745 INFO L125 PetriNetUnfolderBase]: For 30021/30071 co-relation queries the response was YES. [2024-11-19 13:56:41,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11558 conditions, 2523 events. 870/2523 cut-off events. For 30021/30071 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 19737 event pairs, 125 based on Foata normal form. 110/2613 useless extension candidates. Maximal degree in co-relation 11498. Up to 931 conditions per place. [2024-11-19 13:56:41,773 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 190 selfloop transitions, 6 changer transitions 0/278 dead transitions. [2024-11-19 13:56:41,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 278 transitions, 3367 flow [2024-11-19 13:56:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:56:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:56:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-19 13:56:41,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-19 13:56:41,775 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2257 flow. Second operand 4 states and 73 transitions. [2024-11-19 13:56:41,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 278 transitions, 3367 flow [2024-11-19 13:56:41,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 278 transitions, 3358 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:56:41,861 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2264 flow [2024-11-19 13:56:41,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2264, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2024-11-19 13:56:41,862 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2024-11-19 13:56:41,862 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2264 flow [2024-11-19 13:56:41,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-19 13:56:41,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:41,862 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:41,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 13:56:41,863 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:41,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:41,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1031168989, now seen corresponding path program 1 times [2024-11-19 13:56:41,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:41,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705356838] [2024-11-19 13:56:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:41,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:41,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705356838] [2024-11-19 13:56:41,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705356838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907463134] [2024-11-19 13:56:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:41,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:41,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:41,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:41,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:56:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:42,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 13:56:42,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:42,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:56:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:42,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907463134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:56:42,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:56:42,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 13:56:42,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830714296] [2024-11-19 13:56:42,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:56:42,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 13:56:42,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:42,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 13:56:42,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-19 13:56:42,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:42,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2264 flow. Second operand has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 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) [2024-11-19 13:56:42,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:42,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:42,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:43,987 INFO L124 PetriNetUnfolderBase]: 1834/5367 cut-off events. [2024-11-19 13:56:43,988 INFO L125 PetriNetUnfolderBase]: For 137421/137497 co-relation queries the response was YES. [2024-11-19 13:56:44,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25172 conditions, 5367 events. 1834/5367 cut-off events. For 137421/137497 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 45716 event pairs, 18 based on Foata normal form. 520/5879 useless extension candidates. Maximal degree in co-relation 25113. Up to 1216 conditions per place. [2024-11-19 13:56:44,028 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 294 selfloop transitions, 415 changer transitions 0/720 dead transitions. [2024-11-19 13:56:44,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 720 transitions, 8726 flow [2024-11-19 13:56:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-19 13:56:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-19 13:56:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1169 transitions. [2024-11-19 13:56:44,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6387978142076502 [2024-11-19 13:56:44,031 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2264 flow. Second operand 61 states and 1169 transitions. [2024-11-19 13:56:44,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 720 transitions, 8726 flow [2024-11-19 13:56:44,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 720 transitions, 8611 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-19 13:56:44,152 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7142 flow [2024-11-19 13:56:44,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7142, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2024-11-19 13:56:44,153 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2024-11-19 13:56:44,153 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7142 flow [2024-11-19 13:56:44,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.789473684210526) internal successors, (262), 19 states have internal predecessors, (262), 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) [2024-11-19 13:56:44,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:44,154 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 13:56:44,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 13:56:44,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 13:56:44,354 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:44,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:44,355 INFO L85 PathProgramCache]: Analyzing trace with hash -636451777, now seen corresponding path program 1 times [2024-11-19 13:56:44,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:44,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119575851] [2024-11-19 13:56:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:44,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:44,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119575851] [2024-11-19 13:56:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119575851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632644916] [2024-11-19 13:56:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:56:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:44,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:44,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:44,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:56:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:56:44,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 13:56:44,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:44,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:56:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:45,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632644916] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:56:45,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:56:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2024-11-19 13:56:45,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020852883] [2024-11-19 13:56:45,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:56:45,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 13:56:45,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 13:56:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2024-11-19 13:56:45,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:45,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7142 flow. Second operand has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 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) [2024-11-19 13:56:45,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:45,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:45,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:56:51,605 INFO L124 PetriNetUnfolderBase]: 6251/18538 cut-off events. [2024-11-19 13:56:51,605 INFO L125 PetriNetUnfolderBase]: For 1645620/1645759 co-relation queries the response was YES. [2024-11-19 13:56:51,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99739 conditions, 18538 events. 6251/18538 cut-off events. For 1645620/1645759 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 192051 event pairs, 24 based on Foata normal form. 1435/19964 useless extension candidates. Maximal degree in co-relation 99642. Up to 4760 conditions per place. [2024-11-19 13:56:51,834 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 742 selfloop transitions, 1334 changer transitions 0/2087 dead transitions. [2024-11-19 13:56:51,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 2087 transitions, 32446 flow [2024-11-19 13:56:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-19 13:56:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2024-11-19 13:56:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2729 transitions. [2024-11-19 13:56:51,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6639902676399027 [2024-11-19 13:56:51,839 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7142 flow. Second operand 137 states and 2729 transitions. [2024-11-19 13:56:51,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 2087 transitions, 32446 flow [2024-11-19 13:56:53,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 2087 transitions, 26757 flow, removed 2815 selfloop flow, removed 9 redundant places. [2024-11-19 13:56:53,856 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22123 flow [2024-11-19 13:56:53,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5703, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22123, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2024-11-19 13:56:53,857 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2024-11-19 13:56:53,857 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22123 flow [2024-11-19 13:56:53,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.666666666666666) internal successors, (410), 30 states have internal predecessors, (410), 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) [2024-11-19 13:56:53,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:56:53,858 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:56:53,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:56:54,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 13:56:54,063 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:56:54,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:56:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -587900895, now seen corresponding path program 2 times [2024-11-19 13:56:54,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:56:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21518345] [2024-11-19 13:56:54,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:56:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:56:54,116 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:56:54,116 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:56:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:54,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:56:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21518345] [2024-11-19 13:56:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21518345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:56:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378969268] [2024-11-19 13:56:54,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:56:54,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:56:54,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:56:54,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:56:54,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:56:54,605 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:56:54,605 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:56:54,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 13:56:54,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:56:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:54,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:56:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:56:54,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378969268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:56:54,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:56:54,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-19 13:56:54,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617192075] [2024-11-19 13:56:54,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:56:54,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 13:56:54,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:56:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 13:56:54,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 13:56:54,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:56:54,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22123 flow. Second operand has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 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) [2024-11-19 13:56:54,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:56:54,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:56:54,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:57:24,825 INFO L124 PetriNetUnfolderBase]: 19835/57295 cut-off events. [2024-11-19 13:57:24,825 INFO L125 PetriNetUnfolderBase]: For 16885410/16885551 co-relation queries the response was YES. [2024-11-19 13:57:27,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332871 conditions, 57295 events. 19835/57295 cut-off events. For 16885410/16885551 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 672563 event pairs, 518 based on Foata normal form. 2417/59666 useless extension candidates. Maximal degree in co-relation 332688. Up to 12570 conditions per place. [2024-11-19 13:57:28,254 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 924 selfloop transitions, 5760 changer transitions 0/6695 dead transitions. [2024-11-19 13:57:28,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6695 transitions, 113318 flow [2024-11-19 13:57:28,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-19 13:57:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2024-11-19 13:57:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2733 transitions. [2024-11-19 13:57:28,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282758620689655 [2024-11-19 13:57:28,263 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22123 flow. Second operand 145 states and 2733 transitions. [2024-11-19 13:57:28,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6695 transitions, 113318 flow [2024-11-19 13:57:57,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 6695 transitions, 88894 flow, removed 12087 selfloop flow, removed 23 redundant places. [2024-11-19 13:57:57,461 INFO L231 Difference]: Finished difference. Result has 651 places, 6167 transitions, 92411 flow [2024-11-19 13:57:57,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=17837, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92411, PETRI_PLACES=651, PETRI_TRANSITIONS=6167} [2024-11-19 13:57:57,463 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 622 predicate places. [2024-11-19 13:57:57,463 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 6167 transitions, 92411 flow [2024-11-19 13:57:57,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 13.914285714285715) internal successors, (487), 35 states have internal predecessors, (487), 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) [2024-11-19 13:57:57,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:57:57,464 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 13:57:57,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:57:57,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:57,665 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:57:57,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:57:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash 171217711, now seen corresponding path program 2 times [2024-11-19 13:57:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:57:57,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971995507] [2024-11-19 13:57:57,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:57,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:57:57,696 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:57:57,697 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:58,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:57:58,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971995507] [2024-11-19 13:57:58,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971995507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:57:58,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5370135] [2024-11-19 13:57:58,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:57:58,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:57:58,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:57:58,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:57:58,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 13:57:58,178 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:57:58,179 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:57:58,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 13:57:58,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:57:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:58,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:57:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:57:58,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5370135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:57:58,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:57:58,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-11-19 13:57:58,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565970797] [2024-11-19 13:57:58,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:57:58,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 13:57:58,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:57:58,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 13:57:58,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 13:57:58,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2024-11-19 13:57:58,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 6167 transitions, 92411 flow. Second operand has 41 states, 41 states have (on average 13.78048780487805) internal successors, (565), 41 states have internal predecessors, (565), 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) [2024-11-19 13:57:58,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:57:58,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2024-11-19 13:57:58,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand