./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:50:59,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:50:59,968 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:50:59,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:50:59,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:50:59,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:50:59,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:50:59,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:50:59,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:50:59,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:50:59,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:50:59,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:51:00,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:51:00,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:51:00,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:51:00,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:51:00,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:51:00,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:51:00,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:51:00,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:51:00,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:51:00,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:51:00,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:51:00,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:51:00,007 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:51:00,007 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:51:00,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:51:00,008 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:51:00,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:51:00,008 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:51:00,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:51:00,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:51:00,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:51:00,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:51:00,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:00,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:51:00,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:51:00,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:51:00,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:51:00,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:51:00,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:51:00,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:51:00,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:51:00,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:51:00,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2024-11-17 07:51:00,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:51:00,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:51:00,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:51:00,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:51:00,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:51:00,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-17 07:51:01,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:51:01,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:51:01,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-17 07:51:01,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d78c11a/15e30dc256524f1a870682e90d0e53d7/FLAG4ead1697c [2024-11-17 07:51:02,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d78c11a/15e30dc256524f1a870682e90d0e53d7 [2024-11-17 07:51:02,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:51:02,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:51:02,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:02,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:51:02,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:51:02,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a462a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02, skipping insertion in model container [2024-11-17 07:51:02,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:51:02,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:02,531 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:51:02,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:02,570 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:51:02,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02 WrapperNode [2024-11-17 07:51:02,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:02,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:02,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:51:02,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:51:02,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,615 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2024-11-17 07:51:02,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:02,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:51:02,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:51:02,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:51:02,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,658 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:51:02,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:51:02,673 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:51:02,673 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:51:02,673 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:51:02,674 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (1/1) ... [2024-11-17 07:51:02,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:02,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:51:02,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:51:02,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:51:02,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:51:02,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:51:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:51:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:51:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:51:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:51:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:51:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:51:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:51:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:51:02,775 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:51:02,898 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:51:02,900 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:51:03,346 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:51:03,347 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:51:03,543 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:51:03,546 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:51:03,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:03 BoogieIcfgContainer [2024-11-17 07:51:03,547 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:51:03,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:51:03,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:51:03,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:51:03,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:51:02" (1/3) ... [2024-11-17 07:51:03,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a2e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:03, skipping insertion in model container [2024-11-17 07:51:03,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:02" (2/3) ... [2024-11-17 07:51:03,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a2e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:03, skipping insertion in model container [2024-11-17 07:51:03,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:03" (3/3) ... [2024-11-17 07:51:03,557 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-11-17 07:51:03,575 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:51:03,576 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-17 07:51:03,576 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:51:03,659 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:51:03,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 217 flow [2024-11-17 07:51:03,737 INFO L124 PetriNetUnfolderBase]: 15/95 cut-off events. [2024-11-17 07:51:03,738 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:51:03,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 15/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 365 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-11-17 07:51:03,747 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 217 flow [2024-11-17 07:51:03,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 93 transitions, 201 flow [2024-11-17 07:51:03,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:51:03,769 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;@20f35f4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:51:03,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-17 07:51:03,788 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:51:03,788 INFO L124 PetriNetUnfolderBase]: 5/35 cut-off events. [2024-11-17 07:51:03,788 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:51:03,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:03,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:03,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:03,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:03,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1580874335, now seen corresponding path program 1 times [2024-11-17 07:51:03,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:03,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521453954] [2024-11-17 07:51:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:03,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:04,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:04,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521453954] [2024-11-17 07:51:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521453954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:04,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:04,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:04,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858179410] [2024-11-17 07:51:04,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:04,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:04,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:04,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-17 07:51:04,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:04,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:04,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-17 07:51:04,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:05,669 INFO L124 PetriNetUnfolderBase]: 6867/11745 cut-off events. [2024-11-17 07:51:05,670 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2024-11-17 07:51:05,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21122 conditions, 11745 events. 6867/11745 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 95368 event pairs, 2280 based on Foata normal form. 444/9735 useless extension candidates. Maximal degree in co-relation 20277. Up to 4832 conditions per place. [2024-11-17 07:51:05,795 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 63 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2024-11-17 07:51:05,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 116 transitions, 385 flow [2024-11-17 07:51:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:05,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-17 07:51:05,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-17 07:51:05,812 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 201 flow. Second operand 4 states and 280 transitions. [2024-11-17 07:51:05,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 116 transitions, 385 flow [2024-11-17 07:51:05,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 116 transitions, 373 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:51:05,825 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 194 flow [2024-11-17 07:51:05,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2024-11-17 07:51:05,833 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2024-11-17 07:51:05,834 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 194 flow [2024-11-17 07:51:05,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:05,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:05,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:05,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:51:05,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:05,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1762464705, now seen corresponding path program 1 times [2024-11-17 07:51:05,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:05,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969600920] [2024-11-17 07:51:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:05,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969600920] [2024-11-17 07:51:05,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969600920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:05,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:05,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89970917] [2024-11-17 07:51:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:05,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:05,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:05,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:05,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-17 07:51:05,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:05,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:05,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-17 07:51:05,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:06,979 INFO L124 PetriNetUnfolderBase]: 5615/10251 cut-off events. [2024-11-17 07:51:06,980 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-17 07:51:07,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18192 conditions, 10251 events. 5615/10251 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 86972 event pairs, 2240 based on Foata normal form. 0/8524 useless extension candidates. Maximal degree in co-relation 8963. Up to 4208 conditions per place. [2024-11-17 07:51:07,055 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 61 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-11-17 07:51:07,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 115 transitions, 373 flow [2024-11-17 07:51:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-17 07:51:07,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-11-17 07:51:07,058 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 194 flow. Second operand 4 states and 281 transitions. [2024-11-17 07:51:07,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 115 transitions, 373 flow [2024-11-17 07:51:07,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 115 transitions, 367 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:07,064 INFO L231 Difference]: Finished difference. Result has 83 places, 90 transitions, 192 flow [2024-11-17 07:51:07,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=83, PETRI_TRANSITIONS=90} [2024-11-17 07:51:07,066 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -5 predicate places. [2024-11-17 07:51:07,066 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 90 transitions, 192 flow [2024-11-17 07:51:07,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:07,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:07,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:07,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:51:07,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1283863885, now seen corresponding path program 1 times [2024-11-17 07:51:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774805585] [2024-11-17 07:51:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:07,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774805585] [2024-11-17 07:51:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774805585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:07,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:07,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:07,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045057861] [2024-11-17 07:51:07,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:07,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:07,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:07,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:07,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:07,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-17 07:51:07,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 90 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:07,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:07,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-17 07:51:07,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:08,715 INFO L124 PetriNetUnfolderBase]: 11294/18048 cut-off events. [2024-11-17 07:51:08,715 INFO L125 PetriNetUnfolderBase]: For 832/832 co-relation queries the response was YES. [2024-11-17 07:51:08,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34005 conditions, 18048 events. 11294/18048 cut-off events. For 832/832 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 143833 event pairs, 3987 based on Foata normal form. 460/15481 useless extension candidates. Maximal degree in co-relation 16010. Up to 7687 conditions per place. [2024-11-17 07:51:08,862 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 91 selfloop transitions, 5 changer transitions 0/141 dead transitions. [2024-11-17 07:51:08,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 500 flow [2024-11-17 07:51:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-11-17 07:51:08,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729591836734694 [2024-11-17 07:51:08,865 INFO L175 Difference]: Start difference. First operand has 83 places, 90 transitions, 192 flow. Second operand 4 states and 303 transitions. [2024-11-17 07:51:08,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 141 transitions, 500 flow [2024-11-17 07:51:08,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 141 transitions, 486 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:08,871 INFO L231 Difference]: Finished difference. Result has 85 places, 92 transitions, 220 flow [2024-11-17 07:51:08,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=85, PETRI_TRANSITIONS=92} [2024-11-17 07:51:08,872 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -3 predicate places. [2024-11-17 07:51:08,872 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 92 transitions, 220 flow [2024-11-17 07:51:08,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:08,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:08,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:08,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:51:08,873 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:08,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:08,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1145074167, now seen corresponding path program 1 times [2024-11-17 07:51:08,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:08,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313507679] [2024-11-17 07:51:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:08,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:08,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:08,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313507679] [2024-11-17 07:51:08,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313507679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:08,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:08,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:08,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313689069] [2024-11-17 07:51:08,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:08,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:08,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:08,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:08,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:08,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-17 07:51:08,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 92 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:08,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:08,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-17 07:51:08,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:10,131 INFO L124 PetriNetUnfolderBase]: 8345/15114 cut-off events. [2024-11-17 07:51:10,131 INFO L125 PetriNetUnfolderBase]: For 3022/3042 co-relation queries the response was YES. [2024-11-17 07:51:10,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29444 conditions, 15114 events. 8345/15114 cut-off events. For 3022/3042 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 133953 event pairs, 2269 based on Foata normal form. 20/13029 useless extension candidates. Maximal degree in co-relation 16273. Up to 6426 conditions per place. [2024-11-17 07:51:10,242 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 62 selfloop transitions, 4 changer transitions 0/115 dead transitions. [2024-11-17 07:51:10,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 115 transitions, 401 flow [2024-11-17 07:51:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-17 07:51:10,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-11-17 07:51:10,244 INFO L175 Difference]: Start difference. First operand has 85 places, 92 transitions, 220 flow. Second operand 4 states and 281 transitions. [2024-11-17 07:51:10,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 115 transitions, 401 flow [2024-11-17 07:51:10,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 115 transitions, 401 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:51:10,395 INFO L231 Difference]: Finished difference. Result has 87 places, 91 transitions, 226 flow [2024-11-17 07:51:10,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=87, PETRI_TRANSITIONS=91} [2024-11-17 07:51:10,396 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2024-11-17 07:51:10,398 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 226 flow [2024-11-17 07:51:10,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:10,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:10,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:10,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:51:10,399 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:10,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1510531139, now seen corresponding path program 1 times [2024-11-17 07:51:10,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:10,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082642134] [2024-11-17 07:51:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:10,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:10,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:10,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082642134] [2024-11-17 07:51:10,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082642134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:10,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:10,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484429821] [2024-11-17 07:51:10,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:10,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:10,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:10,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:10,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:10,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-17 07:51:10,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 91 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:10,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:10,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-17 07:51:10,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:11,823 INFO L124 PetriNetUnfolderBase]: 10270/16640 cut-off events. [2024-11-17 07:51:11,824 INFO L125 PetriNetUnfolderBase]: For 5837/6386 co-relation queries the response was YES. [2024-11-17 07:51:11,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34226 conditions, 16640 events. 10270/16640 cut-off events. For 5837/6386 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 133890 event pairs, 2750 based on Foata normal form. 277/14506 useless extension candidates. Maximal degree in co-relation 20090. Up to 5572 conditions per place. [2024-11-17 07:51:11,940 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 95 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2024-11-17 07:51:11,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 145 transitions, 588 flow [2024-11-17 07:51:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-11-17 07:51:11,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-17 07:51:11,943 INFO L175 Difference]: Start difference. First operand has 87 places, 91 transitions, 226 flow. Second operand 5 states and 355 transitions. [2024-11-17 07:51:11,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 145 transitions, 588 flow [2024-11-17 07:51:11,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 145 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:11,962 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 233 flow [2024-11-17 07:51:11,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2024-11-17 07:51:11,963 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-11-17 07:51:11,964 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 233 flow [2024-11-17 07:51:11,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:11,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:11,964 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:11,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:51:11,965 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:11,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1510532132, now seen corresponding path program 1 times [2024-11-17 07:51:11,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:11,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919769119] [2024-11-17 07:51:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:11,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:12,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:12,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919769119] [2024-11-17 07:51:12,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919769119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:12,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:12,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:12,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287079159] [2024-11-17 07:51:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:12,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:12,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:12,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:12,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:12,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-17 07:51:12,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 91 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:12,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:12,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-17 07:51:12,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:13,338 INFO L124 PetriNetUnfolderBase]: 11237/19866 cut-off events. [2024-11-17 07:51:13,339 INFO L125 PetriNetUnfolderBase]: For 5303/5885 co-relation queries the response was YES. [2024-11-17 07:51:13,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40145 conditions, 19866 events. 11237/19866 cut-off events. For 5303/5885 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 177361 event pairs, 5070 based on Foata normal form. 295/17572 useless extension candidates. Maximal degree in co-relation 23907. Up to 9302 conditions per place. [2024-11-17 07:51:13,458 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-17 07:51:13,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 148 transitions, 595 flow [2024-11-17 07:51:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-17 07:51:13,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2024-11-17 07:51:13,460 INFO L175 Difference]: Start difference. First operand has 88 places, 91 transitions, 233 flow. Second operand 4 states and 301 transitions. [2024-11-17 07:51:13,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 148 transitions, 595 flow [2024-11-17 07:51:13,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 148 transitions, 586 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:13,477 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 253 flow [2024-11-17 07:51:13,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2024-11-17 07:51:13,478 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-11-17 07:51:13,478 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 253 flow [2024-11-17 07:51:13,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:13,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:13,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:13,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:51:13,479 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:13,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:13,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2124234839, now seen corresponding path program 1 times [2024-11-17 07:51:13,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:13,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660378385] [2024-11-17 07:51:13,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:13,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:13,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:13,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660378385] [2024-11-17 07:51:13,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660378385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:13,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:13,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:13,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823945460] [2024-11-17 07:51:13,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:13,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:13,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:13,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:13,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-17 07:51:13,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:13,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:13,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-17 07:51:13,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:14,856 INFO L124 PetriNetUnfolderBase]: 10186/18375 cut-off events. [2024-11-17 07:51:14,856 INFO L125 PetriNetUnfolderBase]: For 7884/8778 co-relation queries the response was YES. [2024-11-17 07:51:14,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37940 conditions, 18375 events. 10186/18375 cut-off events. For 7884/8778 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 166789 event pairs, 3710 based on Foata normal form. 1120/16640 useless extension candidates. Maximal degree in co-relation 25871. Up to 6848 conditions per place. [2024-11-17 07:51:14,968 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 71 selfloop transitions, 3 changer transitions 0/119 dead transitions. [2024-11-17 07:51:14,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 119 transitions, 497 flow [2024-11-17 07:51:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-17 07:51:14,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-11-17 07:51:14,970 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 253 flow. Second operand 4 states and 278 transitions. [2024-11-17 07:51:14,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 119 transitions, 497 flow [2024-11-17 07:51:15,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:51:15,011 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 252 flow [2024-11-17 07:51:15,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2024-11-17 07:51:15,012 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-11-17 07:51:15,012 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 252 flow [2024-11-17 07:51:15,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:15,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:15,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:15,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:51:15,013 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:15,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1137590953, now seen corresponding path program 1 times [2024-11-17 07:51:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878678029] [2024-11-17 07:51:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:15,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:15,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:15,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878678029] [2024-11-17 07:51:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878678029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:15,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:15,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:15,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103724382] [2024-11-17 07:51:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:15,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:15,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:15,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:15,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-17 07:51:15,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:15,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:15,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-17 07:51:15,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:16,395 INFO L124 PetriNetUnfolderBase]: 10160/18454 cut-off events. [2024-11-17 07:51:16,396 INFO L125 PetriNetUnfolderBase]: For 9023/9463 co-relation queries the response was YES. [2024-11-17 07:51:16,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39429 conditions, 18454 events. 10160/18454 cut-off events. For 9023/9463 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 167071 event pairs, 2742 based on Foata normal form. 552/17082 useless extension candidates. Maximal degree in co-relation 27016. Up to 8018 conditions per place. [2024-11-17 07:51:16,481 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 69 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-17 07:51:16,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 477 flow [2024-11-17 07:51:16,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:16,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:16,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-17 07:51:16,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2024-11-17 07:51:16,483 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 252 flow. Second operand 4 states and 277 transitions. [2024-11-17 07:51:16,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 477 flow [2024-11-17 07:51:16,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 117 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:16,566 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 250 flow [2024-11-17 07:51:16,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2024-11-17 07:51:16,566 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-11-17 07:51:16,566 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 250 flow [2024-11-17 07:51:16,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:16,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:16,567 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:16,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:51:16,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:16,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash -418174362, now seen corresponding path program 1 times [2024-11-17 07:51:16,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:16,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203404258] [2024-11-17 07:51:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:16,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:16,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:16,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:16,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203404258] [2024-11-17 07:51:16,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203404258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:16,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:16,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:16,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955132435] [2024-11-17 07:51:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:16,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:16,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:16,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:16,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:16,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-17 07:51:16,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:16,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:16,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-17 07:51:16,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:18,152 INFO L124 PetriNetUnfolderBase]: 13504/21319 cut-off events. [2024-11-17 07:51:18,152 INFO L125 PetriNetUnfolderBase]: For 11036/11420 co-relation queries the response was YES. [2024-11-17 07:51:18,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48006 conditions, 21319 events. 13504/21319 cut-off events. For 11036/11420 co-relation queries the response was YES. Maximal size of possible extension queue 1249. Compared 171107 event pairs, 2731 based on Foata normal form. 916/20328 useless extension candidates. Maximal degree in co-relation 28638. Up to 5350 conditions per place. [2024-11-17 07:51:18,266 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 120 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2024-11-17 07:51:18,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 171 transitions, 751 flow [2024-11-17 07:51:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2024-11-17 07:51:18,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-17 07:51:18,268 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 250 flow. Second operand 6 states and 413 transitions. [2024-11-17 07:51:18,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 171 transitions, 751 flow [2024-11-17 07:51:18,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 171 transitions, 725 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:18,332 INFO L231 Difference]: Finished difference. Result has 91 places, 90 transitions, 267 flow [2024-11-17 07:51:18,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=91, PETRI_TRANSITIONS=90} [2024-11-17 07:51:18,333 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-17 07:51:18,333 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 90 transitions, 267 flow [2024-11-17 07:51:18,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:18,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:18,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:18,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:51:18,334 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:18,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1426771201, now seen corresponding path program 1 times [2024-11-17 07:51:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:18,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864480021] [2024-11-17 07:51:18,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:18,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:18,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864480021] [2024-11-17 07:51:18,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864480021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:18,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:18,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:18,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533020610] [2024-11-17 07:51:18,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:18,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:18,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:18,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:18,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:18,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-17 07:51:18,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 90 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:18,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:18,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-17 07:51:18,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:19,482 INFO L124 PetriNetUnfolderBase]: 8453/16211 cut-off events. [2024-11-17 07:51:19,482 INFO L125 PetriNetUnfolderBase]: For 10511/11413 co-relation queries the response was YES. [2024-11-17 07:51:19,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34634 conditions, 16211 events. 8453/16211 cut-off events. For 10511/11413 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 152800 event pairs, 3711 based on Foata normal form. 732/14812 useless extension candidates. Maximal degree in co-relation 22831. Up to 6850 conditions per place. [2024-11-17 07:51:19,560 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 71 selfloop transitions, 3 changer transitions 0/118 dead transitions. [2024-11-17 07:51:19,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 118 transitions, 530 flow [2024-11-17 07:51:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2024-11-17 07:51:19,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7117346938775511 [2024-11-17 07:51:19,562 INFO L175 Difference]: Start difference. First operand has 91 places, 90 transitions, 267 flow. Second operand 4 states and 279 transitions. [2024-11-17 07:51:19,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 118 transitions, 530 flow [2024-11-17 07:51:19,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 118 transitions, 508 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:19,597 INFO L231 Difference]: Finished difference. Result has 89 places, 89 transitions, 258 flow [2024-11-17 07:51:19,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=89, PETRI_TRANSITIONS=89} [2024-11-17 07:51:19,598 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-11-17 07:51:19,600 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 258 flow [2024-11-17 07:51:19,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:19,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:19,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:19,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:51:19,601 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:19,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash -905581557, now seen corresponding path program 1 times [2024-11-17 07:51:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:19,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841822858] [2024-11-17 07:51:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:19,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:19,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841822858] [2024-11-17 07:51:19,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841822858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:19,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:19,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353546388] [2024-11-17 07:51:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:19,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:19,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:19,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:19,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:19,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-17 07:51:19,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:19,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:19,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-17 07:51:19,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:20,986 INFO L124 PetriNetUnfolderBase]: 14017/21899 cut-off events. [2024-11-17 07:51:20,986 INFO L125 PetriNetUnfolderBase]: For 11215/12763 co-relation queries the response was YES. [2024-11-17 07:51:21,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51470 conditions, 21899 events. 14017/21899 cut-off events. For 11215/12763 co-relation queries the response was YES. Maximal size of possible extension queue 1265. Compared 172383 event pairs, 2663 based on Foata normal form. 1004/21552 useless extension candidates. Maximal degree in co-relation 34206. Up to 9796 conditions per place. [2024-11-17 07:51:21,139 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 99 selfloop transitions, 6 changer transitions 0/144 dead transitions. [2024-11-17 07:51:21,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 144 transitions, 652 flow [2024-11-17 07:51:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:21,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2024-11-17 07:51:21,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7204081632653061 [2024-11-17 07:51:21,141 INFO L175 Difference]: Start difference. First operand has 89 places, 89 transitions, 258 flow. Second operand 5 states and 353 transitions. [2024-11-17 07:51:21,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 144 transitions, 652 flow [2024-11-17 07:51:21,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 144 transitions, 638 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:21,268 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 262 flow [2024-11-17 07:51:21,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-11-17 07:51:21,270 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-11-17 07:51:21,270 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 262 flow [2024-11-17 07:51:21,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:21,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:21,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:21,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:51:21,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:21,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:21,271 INFO L85 PathProgramCache]: Analyzing trace with hash -905580564, now seen corresponding path program 1 times [2024-11-17 07:51:21,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:21,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791521365] [2024-11-17 07:51:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:21,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:21,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:21,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791521365] [2024-11-17 07:51:21,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791521365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:21,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:21,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:21,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687907782] [2024-11-17 07:51:21,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:21,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:21,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:21,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-17 07:51:21,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:21,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:21,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-17 07:51:21,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:22,717 INFO L124 PetriNetUnfolderBase]: 11347/19349 cut-off events. [2024-11-17 07:51:22,717 INFO L125 PetriNetUnfolderBase]: For 13236/14350 co-relation queries the response was YES. [2024-11-17 07:51:22,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44480 conditions, 19349 events. 11347/19349 cut-off events. For 13236/14350 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 166460 event pairs, 5047 based on Foata normal form. 1056/18550 useless extension candidates. Maximal degree in co-relation 29743. Up to 9455 conditions per place. [2024-11-17 07:51:22,854 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 101 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2024-11-17 07:51:22,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 144 transitions, 646 flow [2024-11-17 07:51:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-17 07:51:22,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-17 07:51:22,856 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 262 flow. Second operand 4 states and 298 transitions. [2024-11-17 07:51:22,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 144 transitions, 646 flow [2024-11-17 07:51:22,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 144 transitions, 634 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:22,966 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 252 flow [2024-11-17 07:51:22,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-11-17 07:51:22,967 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-11-17 07:51:22,967 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 252 flow [2024-11-17 07:51:22,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:22,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:22,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:22,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:51:22,968 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:22,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 840186186, now seen corresponding path program 1 times [2024-11-17 07:51:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100556837] [2024-11-17 07:51:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:23,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:23,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100556837] [2024-11-17 07:51:23,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100556837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:23,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:23,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905071253] [2024-11-17 07:51:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:23,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:23,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:23,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-17 07:51:23,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:23,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:23,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-17 07:51:23,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:24,540 INFO L124 PetriNetUnfolderBase]: 13355/21018 cut-off events. [2024-11-17 07:51:24,541 INFO L125 PetriNetUnfolderBase]: For 12516/13114 co-relation queries the response was YES. [2024-11-17 07:51:24,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48576 conditions, 21018 events. 13355/21018 cut-off events. For 12516/13114 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 167680 event pairs, 4973 based on Foata normal form. 864/20012 useless extension candidates. Maximal degree in co-relation 29029. Up to 9406 conditions per place. [2024-11-17 07:51:24,696 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/141 dead transitions. [2024-11-17 07:51:24,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 141 transitions, 616 flow [2024-11-17 07:51:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-17 07:51:24,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-17 07:51:24,697 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 252 flow. Second operand 4 states and 298 transitions. [2024-11-17 07:51:24,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 141 transitions, 616 flow [2024-11-17 07:51:24,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 141 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:24,714 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 260 flow [2024-11-17 07:51:24,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2024-11-17 07:51:24,715 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-11-17 07:51:24,716 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 260 flow [2024-11-17 07:51:24,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:24,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:24,716 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:24,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:51:24,716 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:24,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1991743418, now seen corresponding path program 1 times [2024-11-17 07:51:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999666019] [2024-11-17 07:51:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:24,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999666019] [2024-11-17 07:51:24,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999666019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:24,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:24,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:24,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562570783] [2024-11-17 07:51:24,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:24,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:24,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:24,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:24,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:24,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-17 07:51:24,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:24,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:24,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-17 07:51:24,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:26,230 INFO L124 PetriNetUnfolderBase]: 14775/22853 cut-off events. [2024-11-17 07:51:26,231 INFO L125 PetriNetUnfolderBase]: For 18612/19636 co-relation queries the response was YES. [2024-11-17 07:51:26,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55899 conditions, 22853 events. 14775/22853 cut-off events. For 18612/19636 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 178753 event pairs, 2875 based on Foata normal form. 1616/22637 useless extension candidates. Maximal degree in co-relation 42633. Up to 5986 conditions per place. [2024-11-17 07:51:26,410 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 128 selfloop transitions, 9 changer transitions 0/174 dead transitions. [2024-11-17 07:51:26,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 174 transitions, 852 flow [2024-11-17 07:51:26,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-17 07:51:26,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6972789115646258 [2024-11-17 07:51:26,412 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 260 flow. Second operand 6 states and 410 transitions. [2024-11-17 07:51:26,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 174 transitions, 852 flow [2024-11-17 07:51:26,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 174 transitions, 836 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:51:26,526 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 281 flow [2024-11-17 07:51:26,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2024-11-17 07:51:26,527 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-17 07:51:26,527 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 281 flow [2024-11-17 07:51:26,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:26,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:26,528 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:26,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:51:26,528 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:26,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1031622787, now seen corresponding path program 1 times [2024-11-17 07:51:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:26,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729376930] [2024-11-17 07:51:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:26,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729376930] [2024-11-17 07:51:26,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729376930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:26,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:26,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:26,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832675861] [2024-11-17 07:51:26,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:26,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:26,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:26,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:26,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:26,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-17 07:51:26,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 281 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:26,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:26,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-17 07:51:26,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:28,362 INFO L124 PetriNetUnfolderBase]: 13734/21672 cut-off events. [2024-11-17 07:51:28,363 INFO L125 PetriNetUnfolderBase]: For 26003/28050 co-relation queries the response was YES. [2024-11-17 07:51:28,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54991 conditions, 21672 events. 13734/21672 cut-off events. For 26003/28050 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 173365 event pairs, 4044 based on Foata normal form. 1831/21527 useless extension candidates. Maximal degree in co-relation 42545. Up to 7400 conditions per place. [2024-11-17 07:51:28,518 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 109 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-11-17 07:51:28,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 149 transitions, 789 flow [2024-11-17 07:51:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-17 07:51:28,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163265306122449 [2024-11-17 07:51:28,520 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 281 flow. Second operand 5 states and 351 transitions. [2024-11-17 07:51:28,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 149 transitions, 789 flow [2024-11-17 07:51:28,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 149 transitions, 758 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:28,586 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 283 flow [2024-11-17 07:51:28,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2024-11-17 07:51:28,587 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-17 07:51:28,587 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 283 flow [2024-11-17 07:51:28,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:28,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:28,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 07:51:28,587 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:28,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1031623780, now seen corresponding path program 1 times [2024-11-17 07:51:28,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:28,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566675200] [2024-11-17 07:51:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:28,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:28,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:28,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566675200] [2024-11-17 07:51:28,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566675200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:28,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:28,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:28,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188061844] [2024-11-17 07:51:28,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:28,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:28,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:28,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-17 07:51:28,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:28,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:28,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-17 07:51:28,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:29,968 INFO L124 PetriNetUnfolderBase]: 14990/25427 cut-off events. [2024-11-17 07:51:29,968 INFO L125 PetriNetUnfolderBase]: For 23240/25368 co-relation queries the response was YES. [2024-11-17 07:51:30,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62107 conditions, 25427 events. 14990/25427 cut-off events. For 23240/25368 co-relation queries the response was YES. Maximal size of possible extension queue 1356. Compared 224335 event pairs, 7060 based on Foata normal form. 1939/25505 useless extension candidates. Maximal degree in co-relation 48253. Up to 12750 conditions per place. [2024-11-17 07:51:30,151 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 111 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-11-17 07:51:30,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 152 transitions, 785 flow [2024-11-17 07:51:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 297 transitions. [2024-11-17 07:51:30,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7576530612244898 [2024-11-17 07:51:30,153 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 283 flow. Second operand 4 states and 297 transitions. [2024-11-17 07:51:30,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 152 transitions, 785 flow [2024-11-17 07:51:30,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 152 transitions, 776 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:30,229 INFO L231 Difference]: Finished difference. Result has 95 places, 89 transitions, 303 flow [2024-11-17 07:51:30,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=303, PETRI_PLACES=95, PETRI_TRANSITIONS=89} [2024-11-17 07:51:30,230 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2024-11-17 07:51:30,230 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 89 transitions, 303 flow [2024-11-17 07:51:30,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:30,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:30,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 07:51:30,230 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:30,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:30,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1761773934, now seen corresponding path program 1 times [2024-11-17 07:51:30,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:30,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897854356] [2024-11-17 07:51:30,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:30,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:30,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:30,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897854356] [2024-11-17 07:51:30,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897854356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:30,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:30,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:51:30,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230973787] [2024-11-17 07:51:30,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:30,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:30,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:30,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-17 07:51:30,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 89 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:30,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:30,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-17 07:51:30,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:31,806 INFO L124 PetriNetUnfolderBase]: 17943/27862 cut-off events. [2024-11-17 07:51:31,806 INFO L125 PetriNetUnfolderBase]: For 27630/29353 co-relation queries the response was YES. [2024-11-17 07:51:31,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74171 conditions, 27862 events. 17943/27862 cut-off events. For 27630/29353 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 222451 event pairs, 6748 based on Foata normal form. 1884/28265 useless extension candidates. Maximal degree in co-relation 57512. Up to 12863 conditions per place. [2024-11-17 07:51:32,033 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 176 selfloop transitions, 8 changer transitions 0/218 dead transitions. [2024-11-17 07:51:32,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 218 transitions, 1201 flow [2024-11-17 07:51:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-17 07:51:32,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2024-11-17 07:51:32,035 INFO L175 Difference]: Start difference. First operand has 95 places, 89 transitions, 303 flow. Second operand 6 states and 439 transitions. [2024-11-17 07:51:32,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 218 transitions, 1201 flow [2024-11-17 07:51:32,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 218 transitions, 1185 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:32,394 INFO L231 Difference]: Finished difference. Result has 99 places, 90 transitions, 324 flow [2024-11-17 07:51:32,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=99, PETRI_TRANSITIONS=90} [2024-11-17 07:51:32,395 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-17 07:51:32,395 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 90 transitions, 324 flow [2024-11-17 07:51:32,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:32,396 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:32,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 07:51:32,396 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:32,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:32,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1915535966, now seen corresponding path program 1 times [2024-11-17 07:51:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:32,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348912948] [2024-11-17 07:51:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:32,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:32,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:32,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348912948] [2024-11-17 07:51:32,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348912948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:32,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:32,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:32,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652116104] [2024-11-17 07:51:32,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:32,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:32,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:32,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:32,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-17 07:51:32,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:32,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:32,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-17 07:51:32,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:33,927 INFO L124 PetriNetUnfolderBase]: 17783/27224 cut-off events. [2024-11-17 07:51:33,927 INFO L125 PetriNetUnfolderBase]: For 43069/45500 co-relation queries the response was YES. [2024-11-17 07:51:34,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74943 conditions, 27224 events. 17783/27224 cut-off events. For 43069/45500 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 213458 event pairs, 4044 based on Foata normal form. 3081/28782 useless extension candidates. Maximal degree in co-relation 58338. Up to 7725 conditions per place. [2024-11-17 07:51:34,095 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 142 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2024-11-17 07:51:34,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 186 transitions, 1070 flow [2024-11-17 07:51:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-17 07:51:34,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921768707482994 [2024-11-17 07:51:34,096 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 324 flow. Second operand 6 states and 407 transitions. [2024-11-17 07:51:34,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 186 transitions, 1070 flow [2024-11-17 07:51:34,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 186 transitions, 1018 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:34,270 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 333 flow [2024-11-17 07:51:34,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-17 07:51:34,271 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-17 07:51:34,271 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 333 flow [2024-11-17 07:51:34,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:34,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 07:51:34,272 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-17 07:51:34,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:34,272 INFO L85 PathProgramCache]: Analyzing trace with hash 170762378, now seen corresponding path program 1 times [2024-11-17 07:51:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416212695] [2024-11-17 07:51:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:34,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:34,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:34,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416212695] [2024-11-17 07:51:34,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416212695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:34,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:34,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:51:34,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658407334] [2024-11-17 07:51:34,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:34,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:34,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:34,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:34,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:34,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-17 07:51:34,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 333 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:34,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:34,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-17 07:51:34,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:36,138 INFO L124 PetriNetUnfolderBase]: 17458/26076 cut-off events. [2024-11-17 07:51:36,138 INFO L125 PetriNetUnfolderBase]: For 36555/38889 co-relation queries the response was YES. [2024-11-17 07:51:36,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73883 conditions, 26076 events. 17458/26076 cut-off events. For 36555/38889 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 198139 event pairs, 7060 based on Foata normal form. 2659/27785 useless extension candidates. Maximal degree in co-relation 57380. Up to 13075 conditions per place. [2024-11-17 07:51:36,212 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 218/218 dead transitions. [2024-11-17 07:51:36,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 218 transitions, 1243 flow [2024-11-17 07:51:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2024-11-17 07:51:36,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2024-11-17 07:51:36,214 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 333 flow. Second operand 6 states and 435 transitions. [2024-11-17 07:51:36,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 218 transitions, 1243 flow [2024-11-17 07:51:36,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 218 transitions, 1225 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-17 07:51:36,410 INFO L231 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2024-11-17 07:51:36,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2024-11-17 07:51:36,411 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-17 07:51:36,411 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2024-11-17 07:51:36,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:36,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-17 07:51:36,414 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-17 07:51:36,415 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-17 07:51:36,416 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-17 07:51:36,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-17 07:51:36,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 07:51:36,417 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:36,425 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:51:36,425 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:51:36,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:51:36 BasicIcfg [2024-11-17 07:51:36,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:51:36,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:51:36,431 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:51:36,432 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:51:36,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:03" (3/4) ... [2024-11-17 07:51:36,433 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:51:36,440 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:51:36,440 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:51:36,440 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-17 07:51:36,446 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2024-11-17 07:51:36,447 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-17 07:51:36,447 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-17 07:51:36,447 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 07:51:36,537 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:51:36,538 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:51:36,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:51:36,538 INFO L158 Benchmark]: Toolchain (without parser) took 34239.24ms. Allocated memory was 180.4MB in the beginning and 8.1GB in the end (delta: 8.0GB). Free memory was 111.5MB in the beginning and 7.1GB in the end (delta: -7.0GB). Peak memory consumption was 934.2MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,539 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 117.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:51:36,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.11ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 97.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.39ms. Allocated memory is still 180.4MB. Free memory was 97.8MB in the beginning and 95.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,539 INFO L158 Benchmark]: Boogie Preprocessor took 54.10ms. Allocated memory is still 180.4MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,540 INFO L158 Benchmark]: IcfgBuilder took 874.44ms. Allocated memory is still 180.4MB. Free memory was 93.2MB in the beginning and 115.8MB in the end (delta: -22.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,540 INFO L158 Benchmark]: TraceAbstraction took 32881.53ms. Allocated memory was 180.4MB in the beginning and 8.1GB in the end (delta: 8.0GB). Free memory was 115.8MB in the beginning and 7.1GB in the end (delta: -7.0GB). Peak memory consumption was 5.6GB. Max. memory is 16.1GB. [2024-11-17 07:51:36,541 INFO L158 Benchmark]: Witness Printer took 106.63ms. Allocated memory is still 8.1GB. Free memory was 7.1GB in the beginning and 7.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:51:36,542 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 117.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.11ms. Allocated memory is still 180.4MB. Free memory was 111.2MB in the beginning and 97.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.39ms. Allocated memory is still 180.4MB. Free memory was 97.8MB in the beginning and 95.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.10ms. Allocated memory is still 180.4MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 874.44ms. Allocated memory is still 180.4MB. Free memory was 93.2MB in the beginning and 115.8MB in the end (delta: -22.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 32881.53ms. Allocated memory was 180.4MB in the beginning and 8.1GB in the end (delta: 8.0GB). Free memory was 115.8MB in the beginning and 7.1GB in the end (delta: -7.0GB). Peak memory consumption was 5.6GB. Max. memory is 16.1GB. * Witness Printer took 106.63ms. Allocated memory is still 8.1GB. Free memory was 7.1GB in the beginning and 7.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 32.7s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1791 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4037 IncrementalHoareTripleChecker+Invalid, 4137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 76 mSDtfsCounter, 4037 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=333occurred in iteration=18, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:51:36,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE