/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:15:33,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:15:33,687 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 06:15:33,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:15:33,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:15:33,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:15:33,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:15:33,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:15:33,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:15:33,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:15:33,723 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:15:33,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:15:33,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:15:33,724 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:15:33,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:15:33,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:15:33,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:15:33,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:15:33,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:15:33,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:15:33,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:15:33,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:15:33,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:15:33,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:15:33,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:15:33,726 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:15:33,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:15:33,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:15:33,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:15:33,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:15:33,728 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:15:34,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:15:34,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:15:34,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:15:34,117 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:15:34,117 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:15:34,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-08-27 06:15:35,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:15:35,331 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:15:35,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-08-27 06:15:35,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ac09581/5a8aac6a7ad44ece8115eee5ca42b362/FLAGbcc5bc5f1 [2023-08-27 06:15:35,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ac09581/5a8aac6a7ad44ece8115eee5ca42b362 [2023-08-27 06:15:35,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:15:35,349 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:15:35,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:35,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:15:35,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:15:35,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5431a110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35, skipping insertion in model container [2023-08-27 06:15:35,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,368 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:15:35,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:35,509 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:15:35,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:35,544 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:15:35,545 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:15:35,550 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:15:35,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35 WrapperNode [2023-08-27 06:15:35,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:35,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:35,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:15:35,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:15:35,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,600 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 531 [2023-08-27 06:15:35,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:35,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:15:35,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:15:35,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:15:35,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:15:35,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:15:35,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:15:35,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:15:35,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (1/1) ... [2023-08-27 06:15:35,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:15:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:15:35,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 06:15:35,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 06:15:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:15:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:15:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:15:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:15:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:15:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 06:15:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:15:35,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:15:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:15:35,717 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 06:15:35,817 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:15:35,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:15:36,332 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:15:39,771 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:15:39,772 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 06:15:39,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:39 BoogieIcfgContainer [2023-08-27 06:15:39,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:15:39,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:15:39,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:15:39,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:15:39,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:15:35" (1/3) ... [2023-08-27 06:15:39,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb20ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:39, skipping insertion in model container [2023-08-27 06:15:39,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:35" (2/3) ... [2023-08-27 06:15:39,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb20ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:39, skipping insertion in model container [2023-08-27 06:15:39,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:39" (3/3) ... [2023-08-27 06:15:39,779 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2023-08-27 06:15:39,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:15:39,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 73 error locations. [2023-08-27 06:15:39,791 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:15:41,029 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 06:15:41,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 205 transitions, 434 flow [2023-08-27 06:15:41,437 INFO L124 PetriNetUnfolderBase]: 1/202 cut-off events. [2023-08-27 06:15:41,438 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:15:41,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 202 events. 1/202 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-08-27 06:15:41,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 205 transitions, 434 flow [2023-08-27 06:15:41,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 191 transitions, 400 flow [2023-08-27 06:15:41,447 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:15:41,466 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 191 transitions, 400 flow [2023-08-27 06:15:41,467 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 191 transitions, 400 flow [2023-08-27 06:15:41,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 191 transitions, 400 flow [2023-08-27 06:15:41,720 INFO L124 PetriNetUnfolderBase]: 1/191 cut-off events. [2023-08-27 06:15:41,720 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:15:41,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 1/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-27 06:15:41,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2023-08-27 06:15:47,537 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 1436 DAG size of output: 441 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 06:15:56,511 WARN L234 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 1646 DAG size of output: 577 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 06:16:30,901 INFO L134 LiptonReduction]: Checked pairs total: 4326 [2023-08-27 06:16:30,901 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-08-27 06:16:30,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:16:30,924 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@181e0cb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:16:30,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 148 error locations. [2023-08-27 06:16:30,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:16:30,926 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 06:16:30,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:16:30,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:16:30,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:16:30,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:16:30,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:16:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2359643, now seen corresponding path program 1 times [2023-08-27 06:16:30,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:16:30,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830822775] [2023-08-27 06:16:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:16:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:16:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:16:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:16:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:16:31,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830822775] [2023-08-27 06:16:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830822775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:16:31,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:16:31,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:16:31,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915334773] [2023-08-27 06:16:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:16:31,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 06:16:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:16:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 06:16:31,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 06:16:31,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 311 [2023-08-27 06:16:31,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 194 flow. Second operand has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-08-27 06:16:31,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:16:31,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 311 [2023-08-27 06:16:31,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:17:40,316 INFO L124 PetriNetUnfolderBase]: 29733/42768 cut-off events. [2023-08-27 06:17:40,316 INFO L125 PetriNetUnfolderBase]: For 972/972 co-relation queries the response was YES. [2023-08-27 06:17:40,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86570 conditions, 42768 events. 29733/42768 cut-off events. For 972/972 co-relation queries the response was YES. Maximal size of possible extension queue 5832. Compared 314279 event pairs, 29733 based on Foata normal form. 0/9296 useless extension candidates. Maximal degree in co-relation 82328. Up to 42769 conditions per place. [2023-08-27 06:17:40,474 INFO L140 encePairwiseOnDemand]: 287/311 looper letters, 64 selfloop transitions, 0 changer transitions 0/64 dead transitions. [2023-08-27 06:17:40,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 274 flow [2023-08-27 06:17:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 06:17:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 06:17:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 332 transitions. [2023-08-27 06:17:40,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5337620578778135 [2023-08-27 06:17:40,487 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 332 transitions. [2023-08-27 06:17:40,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 332 transitions. [2023-08-27 06:17:40,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:17:40,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 332 transitions. [2023-08-27 06:17:40,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.0) internal successors, (332), 2 states have internal predecessors, (332), 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) [2023-08-27 06:17:40,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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) [2023-08-27 06:17:40,498 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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) [2023-08-27 06:17:40,499 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 194 flow. Second operand 2 states and 332 transitions. [2023-08-27 06:17:40,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 274 flow [2023-08-27 06:17:40,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 06:17:40,528 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 134 flow [2023-08-27 06:17:40,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2023-08-27 06:17:40,531 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -29 predicate places. [2023-08-27 06:17:40,532 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 134 flow [2023-08-27 06:17:40,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-08-27 06:17:40,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:17:40,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:17:40,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:17:40,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:17:40,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:17:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2359657, now seen corresponding path program 1 times [2023-08-27 06:17:40,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:17:40,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655826301] [2023-08-27 06:17:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:17:40,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:17:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:17:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:17:40,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:17:40,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655826301] [2023-08-27 06:17:40,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655826301] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:17:40,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:17:40,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:17:40,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937136177] [2023-08-27 06:17:40,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:17:40,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:17:40,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:17:40,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:17:40,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:17:40,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:17:40,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:17:40,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:17:40,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:17:40,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:18:40,401 INFO L124 PetriNetUnfolderBase]: 26517/38184 cut-off events. [2023-08-27 06:18:40,401 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2023-08-27 06:18:40,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76678 conditions, 38184 events. 26517/38184 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 5203. Compared 277312 event pairs, 26517 based on Foata normal form. 0/8410 useless extension candidates. Maximal degree in co-relation 76675. Up to 38184 conditions per place. [2023-08-27 06:18:40,502 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 61 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-27 06:18:40,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 254 flow [2023-08-27 06:18:40,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:18:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:18:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-08-27 06:18:40,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45444801714898175 [2023-08-27 06:18:40,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-08-27 06:18:40,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-08-27 06:18:40,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:18:40,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-08-27 06:18:40,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2023-08-27 06:18:40,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:18:40,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:18:40,508 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 134 flow. Second operand 3 states and 424 transitions. [2023-08-27 06:18:40,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 254 flow [2023-08-27 06:18:40,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 06:18:40,509 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 132 flow [2023-08-27 06:18:40,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2023-08-27 06:18:40,510 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -29 predicate places. [2023-08-27 06:18:40,510 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 132 flow [2023-08-27 06:18:40,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:18:40,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:18:40,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:18:40,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:18:40,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:18:40,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:18:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2359659, now seen corresponding path program 1 times [2023-08-27 06:18:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:18:40,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241211611] [2023-08-27 06:18:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:18:40,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:18:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:18:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:18:40,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:18:40,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241211611] [2023-08-27 06:18:40,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241211611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:18:40,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:18:40,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:18:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809590643] [2023-08-27 06:18:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:18:40,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:18:40,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:18:40,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:18:40,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:18:40,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:18:40,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:18:40,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:18:40,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:18:40,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:19:28,921 INFO L124 PetriNetUnfolderBase]: 23627/34066 cut-off events. [2023-08-27 06:19:28,922 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2023-08-27 06:19:28,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68426 conditions, 34066 events. 23627/34066 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 4625. Compared 243911 event pairs, 23627 based on Foata normal form. 0/7620 useless extension candidates. Maximal degree in co-relation 68422. Up to 34066 conditions per place. [2023-08-27 06:19:29,029 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-08-27 06:19:29,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 248 flow [2023-08-27 06:19:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:19:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:19:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-27 06:19:29,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45230439442658094 [2023-08-27 06:19:29,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-27 06:19:29,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-27 06:19:29,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:19:29,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-27 06:19:29,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2023-08-27 06:19:29,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:19:29,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:19:29,035 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 132 flow. Second operand 3 states and 422 transitions. [2023-08-27 06:19:29,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 248 flow [2023-08-27 06:19:29,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:19:29,037 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 129 flow [2023-08-27 06:19:29,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2023-08-27 06:19:29,038 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -30 predicate places. [2023-08-27 06:19:29,038 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 129 flow [2023-08-27 06:19:29,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:19:29,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:19:29,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:19:29,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:19:29,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:19:29,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:19:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2359660, now seen corresponding path program 1 times [2023-08-27 06:19:29,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:19:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610823864] [2023-08-27 06:19:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:19:29,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:19:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:19:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:19:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:19:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610823864] [2023-08-27 06:19:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610823864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:19:29,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:19:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:19:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481456793] [2023-08-27 06:19:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:19:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:19:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:19:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:19:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:19:29,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:19:29,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:19:29,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:19:29,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:19:29,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:20:11,643 INFO L124 PetriNetUnfolderBase]: 20903/30182 cut-off events. [2023-08-27 06:20:11,644 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2023-08-27 06:20:11,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60641 conditions, 30182 events. 20903/30182 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 4081. Compared 213234 event pairs, 20903 based on Foata normal form. 0/6868 useless extension candidates. Maximal degree in co-relation 60637. Up to 30182 conditions per place. [2023-08-27 06:20:11,724 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2023-08-27 06:20:11,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 241 flow [2023-08-27 06:20:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:20:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:20:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-08-27 06:20:11,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45016077170418006 [2023-08-27 06:20:11,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-08-27 06:20:11,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-08-27 06:20:11,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:20:11,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-08-27 06:20:11,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-27 06:20:11,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:20:11,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:20:11,729 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 129 flow. Second operand 3 states and 420 transitions. [2023-08-27 06:20:11,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 241 flow [2023-08-27 06:20:11,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:20:11,730 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 126 flow [2023-08-27 06:20:11,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2023-08-27 06:20:11,731 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -31 predicate places. [2023-08-27 06:20:11,731 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 126 flow [2023-08-27 06:20:11,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:20:11,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:20:11,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:20:11,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:20:11,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:20:11,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:20:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2359662, now seen corresponding path program 1 times [2023-08-27 06:20:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:20:11,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920532158] [2023-08-27 06:20:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:20:11,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:20:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:20:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:20:11,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:20:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920532158] [2023-08-27 06:20:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920532158] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:20:11,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:20:11,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:20:11,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74852906] [2023-08-27 06:20:11,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:20:11,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:20:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:20:11,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:20:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:20:11,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:20:11,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:20:11,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:20:11,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:20:11,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:20:46,586 INFO L124 PetriNetUnfolderBase]: 18365/26556 cut-off events. [2023-08-27 06:20:46,586 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2023-08-27 06:20:46,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53358 conditions, 26556 events. 18365/26556 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 185082 event pairs, 18365 based on Foata normal form. 0/6144 useless extension candidates. Maximal degree in co-relation 53354. Up to 26556 conditions per place. [2023-08-27 06:20:46,642 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2023-08-27 06:20:46,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 234 flow [2023-08-27 06:20:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:20:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:20:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2023-08-27 06:20:46,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4480171489817792 [2023-08-27 06:20:46,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2023-08-27 06:20:46,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2023-08-27 06:20:46,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:20:46,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2023-08-27 06:20:46,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2023-08-27 06:20:46,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:20:46,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:20:46,647 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 126 flow. Second operand 3 states and 418 transitions. [2023-08-27 06:20:46,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 234 flow [2023-08-27 06:20:46,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:20:46,648 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 123 flow [2023-08-27 06:20:46,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2023-08-27 06:20:46,649 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -32 predicate places. [2023-08-27 06:20:46,649 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 123 flow [2023-08-27 06:20:46,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:20:46,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:20:46,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:20:46,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:20:46,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:20:46,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:20:46,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2359663, now seen corresponding path program 1 times [2023-08-27 06:20:46,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:20:46,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808133442] [2023-08-27 06:20:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:20:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:20:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:20:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:20:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:20:46,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808133442] [2023-08-27 06:20:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808133442] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:20:46,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:20:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:20:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524682305] [2023-08-27 06:20:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:20:46,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:20:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:20:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:20:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:20:46,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:20:46,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:20:46,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:20:46,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:20:46,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:21:14,187 INFO L124 PetriNetUnfolderBase]: 15991/23162 cut-off events. [2023-08-27 06:21:14,187 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2023-08-27 06:21:14,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46541 conditions, 23162 events. 15991/23162 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 3123. Compared 158978 event pairs, 15991 based on Foata normal form. 0/5460 useless extension candidates. Maximal degree in co-relation 46537. Up to 23162 conditions per place. [2023-08-27 06:21:14,234 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-08-27 06:21:14,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 227 flow [2023-08-27 06:21:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:21:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:21:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2023-08-27 06:21:14,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44587352625937837 [2023-08-27 06:21:14,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2023-08-27 06:21:14,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2023-08-27 06:21:14,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:21:14,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2023-08-27 06:21:14,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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) [2023-08-27 06:21:14,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:14,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:14,240 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 123 flow. Second operand 3 states and 416 transitions. [2023-08-27 06:21:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 227 flow [2023-08-27 06:21:14,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:21:14,241 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 120 flow [2023-08-27 06:21:14,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2023-08-27 06:21:14,241 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -33 predicate places. [2023-08-27 06:21:14,241 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 120 flow [2023-08-27 06:21:14,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:14,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:21:14,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:21:14,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:21:14,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:21:14,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:21:14,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2359665, now seen corresponding path program 1 times [2023-08-27 06:21:14,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:21:14,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648175966] [2023-08-27 06:21:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:21:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:21:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:21:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:21:14,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:21:14,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648175966] [2023-08-27 06:21:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648175966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:21:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:21:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:21:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297256797] [2023-08-27 06:21:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:21:14,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:21:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:21:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:21:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:21:14,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:21:14,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:14,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:21:14,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:21:14,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:21:33,989 INFO L124 PetriNetUnfolderBase]: 13887/20154 cut-off events. [2023-08-27 06:21:33,989 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 06:21:33,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40510 conditions, 20154 events. 13887/20154 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 136246 event pairs, 13887 based on Foata normal form. 0/4856 useless extension candidates. Maximal degree in co-relation 40506. Up to 20154 conditions per place. [2023-08-27 06:21:34,029 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2023-08-27 06:21:34,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 220 flow [2023-08-27 06:21:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:21:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:21:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-27 06:21:34,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437299035369775 [2023-08-27 06:21:34,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-27 06:21:34,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-27 06:21:34,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:21:34,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-27 06:21:34,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2023-08-27 06:21:34,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:34,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:34,033 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 120 flow. Second operand 3 states and 414 transitions. [2023-08-27 06:21:34,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 220 flow [2023-08-27 06:21:34,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:21:34,037 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 117 flow [2023-08-27 06:21:34,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-08-27 06:21:34,040 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -34 predicate places. [2023-08-27 06:21:34,040 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 117 flow [2023-08-27 06:21:34,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:34,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:21:34,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:21:34,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:21:34,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:21:34,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:21:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2359666, now seen corresponding path program 1 times [2023-08-27 06:21:34,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:21:34,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287148926] [2023-08-27 06:21:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:21:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:21:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:21:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:21:34,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:21:34,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287148926] [2023-08-27 06:21:34,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287148926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:21:34,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:21:34,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:21:34,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417284946] [2023-08-27 06:21:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:21:34,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:21:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:21:34,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:21:34,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:21:34,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:21:34,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:34,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:21:34,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:21:34,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:21:46,890 INFO L124 PetriNetUnfolderBase]: 11929/17352 cut-off events. [2023-08-27 06:21:46,890 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2023-08-27 06:21:46,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34891 conditions, 17352 events. 11929/17352 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 2313. Compared 114932 event pairs, 11929 based on Foata normal form. 0/4286 useless extension candidates. Maximal degree in co-relation 34887. Up to 17352 conditions per place. [2023-08-27 06:21:46,926 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 49 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2023-08-27 06:21:46,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 213 flow [2023-08-27 06:21:46,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:21:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:21:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2023-08-27 06:21:46,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4415862808145766 [2023-08-27 06:21:46,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2023-08-27 06:21:46,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2023-08-27 06:21:46,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:21:46,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2023-08-27 06:21:46,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-27 06:21:46,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:46,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:46,930 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 117 flow. Second operand 3 states and 412 transitions. [2023-08-27 06:21:46,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 213 flow [2023-08-27 06:21:46,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:21:46,931 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 114 flow [2023-08-27 06:21:46,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2023-08-27 06:21:46,934 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -35 predicate places. [2023-08-27 06:21:46,934 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 114 flow [2023-08-27 06:21:46,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:46,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:21:46,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:21:46,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:21:46,934 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:21:46,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:21:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2359644, now seen corresponding path program 1 times [2023-08-27 06:21:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:21:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167260948] [2023-08-27 06:21:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:21:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:21:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:21:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:21:47,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:21:47,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167260948] [2023-08-27 06:21:47,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167260948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:21:47,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:21:47,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:21:47,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862039508] [2023-08-27 06:21:47,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:21:47,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:21:47,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:21:47,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:21:47,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:21:47,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:21:47,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:47,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:21:47,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:21:47,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:21:58,025 INFO L124 PetriNetUnfolderBase]: 10133/14776 cut-off events. [2023-08-27 06:21:58,025 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2023-08-27 06:21:58,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29714 conditions, 14776 events. 10133/14776 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 96328 event pairs, 10133 based on Foata normal form. 0/3744 useless extension candidates. Maximal degree in co-relation 29710. Up to 14776 conditions per place. [2023-08-27 06:21:58,054 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-08-27 06:21:58,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 206 flow [2023-08-27 06:21:58,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:21:58,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:21:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2023-08-27 06:21:58,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43944265809217575 [2023-08-27 06:21:58,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2023-08-27 06:21:58,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2023-08-27 06:21:58,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:21:58,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2023-08-27 06:21:58,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:21:58,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:58,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:21:58,058 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 114 flow. Second operand 3 states and 410 transitions. [2023-08-27 06:21:58,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 206 flow [2023-08-27 06:21:58,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:21:58,059 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 111 flow [2023-08-27 06:21:58,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2023-08-27 06:21:58,059 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -36 predicate places. [2023-08-27 06:21:58,059 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 111 flow [2023-08-27 06:21:58,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:58,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:21:58,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:21:58,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:21:58,060 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:21:58,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:21:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2359645, now seen corresponding path program 1 times [2023-08-27 06:21:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:21:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114867088] [2023-08-27 06:21:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:21:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:21:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:21:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:21:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:21:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114867088] [2023-08-27 06:21:58,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114867088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:21:58,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:21:58,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:21:58,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210339032] [2023-08-27 06:21:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:21:58,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:21:58,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:21:58,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:21:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:21:58,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:21:58,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:21:58,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:21:58,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:21:58,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:07,725 INFO L124 PetriNetUnfolderBase]: 8481/12404 cut-off events. [2023-08-27 06:22:07,725 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-08-27 06:22:07,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24947 conditions, 12404 events. 8481/12404 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 79408 event pairs, 8481 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 24943. Up to 12404 conditions per place. [2023-08-27 06:22:07,749 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 45 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-08-27 06:22:07,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 199 flow [2023-08-27 06:22:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2023-08-27 06:22:07,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43729903536977494 [2023-08-27 06:22:07,750 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions. [2023-08-27 06:22:07,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions. [2023-08-27 06:22:07,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:07,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions. [2023-08-27 06:22:07,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2023-08-27 06:22:07,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:07,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:07,752 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 111 flow. Second operand 3 states and 408 transitions. [2023-08-27 06:22:07,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 199 flow [2023-08-27 06:22:07,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 46 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:07,753 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 108 flow [2023-08-27 06:22:07,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2023-08-27 06:22:07,754 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -37 predicate places. [2023-08-27 06:22:07,754 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 108 flow [2023-08-27 06:22:07,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:07,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:07,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:07,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:22:07,754 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:07,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:07,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2359647, now seen corresponding path program 1 times [2023-08-27 06:22:07,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:07,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059617093] [2023-08-27 06:22:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:07,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:07,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:07,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059617093] [2023-08-27 06:22:07,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059617093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:07,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:07,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064131003] [2023-08-27 06:22:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:07,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:07,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:07,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:07,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:07,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:07,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:07,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:07,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:16,185 INFO L124 PetriNetUnfolderBase]: 7043/10338 cut-off events. [2023-08-27 06:22:16,185 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 06:22:16,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20802 conditions, 10338 events. 7043/10338 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1357. Compared 64698 event pairs, 7043 based on Foata normal form. 0/2796 useless extension candidates. Maximal degree in co-relation 20798. Up to 10338 conditions per place. [2023-08-27 06:22:16,204 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-08-27 06:22:16,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 192 flow [2023-08-27 06:22:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-27 06:22:16,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43515541264737406 [2023-08-27 06:22:16,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-27 06:22:16,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-27 06:22:16,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:16,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-27 06:22:16,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-08-27 06:22:16,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:16,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:16,208 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 108 flow. Second operand 3 states and 406 transitions. [2023-08-27 06:22:16,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 192 flow [2023-08-27 06:22:16,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 44 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:16,209 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 105 flow [2023-08-27 06:22:16,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2023-08-27 06:22:16,209 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -38 predicate places. [2023-08-27 06:22:16,209 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 105 flow [2023-08-27 06:22:16,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:16,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:16,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:16,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:22:16,210 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:16,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2359648, now seen corresponding path program 1 times [2023-08-27 06:22:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:16,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964804378] [2023-08-27 06:22:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:16,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:16,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964804378] [2023-08-27 06:22:16,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964804378] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:16,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:16,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:16,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977404206] [2023-08-27 06:22:16,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:16,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:16,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:16,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:16,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:16,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:16,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:16,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:16,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:16,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:23,482 INFO L124 PetriNetUnfolderBase]: 5731/8450 cut-off events. [2023-08-27 06:22:23,482 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2023-08-27 06:22:23,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17013 conditions, 8450 events. 5731/8450 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 51561 event pairs, 5731 based on Foata normal form. 0/2384 useless extension candidates. Maximal degree in co-relation 17009. Up to 8450 conditions per place. [2023-08-27 06:22:23,497 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-27 06:22:23,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 185 flow [2023-08-27 06:22:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-08-27 06:22:23,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330117899249732 [2023-08-27 06:22:23,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-08-27 06:22:23,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-08-27 06:22:23,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:23,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-08-27 06:22:23,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2023-08-27 06:22:23,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:23,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:23,501 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 105 flow. Second operand 3 states and 404 transitions. [2023-08-27 06:22:23,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 185 flow [2023-08-27 06:22:23,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:23,502 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 102 flow [2023-08-27 06:22:23,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2023-08-27 06:22:23,503 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -39 predicate places. [2023-08-27 06:22:23,503 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 102 flow [2023-08-27 06:22:23,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:23,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:23,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:22:23,503 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:23,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2359650, now seen corresponding path program 1 times [2023-08-27 06:22:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:23,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074867004] [2023-08-27 06:22:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:23,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:23,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074867004] [2023-08-27 06:22:23,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074867004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:23,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:23,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595815907] [2023-08-27 06:22:23,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:23,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:23,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:23,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:23,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:23,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:23,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:23,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:23,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:23,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:29,600 INFO L124 PetriNetUnfolderBase]: 4557/6756 cut-off events. [2023-08-27 06:22:29,600 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-08-27 06:22:29,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13606 conditions, 6756 events. 4557/6756 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 40094 event pairs, 4557 based on Foata normal form. 0/2000 useless extension candidates. Maximal degree in co-relation 13602. Up to 6756 conditions per place. [2023-08-27 06:22:29,612 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 39 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-08-27 06:22:29,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 40 transitions, 178 flow [2023-08-27 06:22:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-08-27 06:22:29,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43086816720257237 [2023-08-27 06:22:29,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-08-27 06:22:29,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-08-27 06:22:29,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:29,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-08-27 06:22:29,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2023-08-27 06:22:29,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:29,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:29,616 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 102 flow. Second operand 3 states and 402 transitions. [2023-08-27 06:22:29,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 40 transitions, 178 flow [2023-08-27 06:22:29,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 40 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:29,617 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 99 flow [2023-08-27 06:22:29,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2023-08-27 06:22:29,617 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2023-08-27 06:22:29,617 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 99 flow [2023-08-27 06:22:29,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:29,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:29,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:29,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 06:22:29,618 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:29,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2359651, now seen corresponding path program 1 times [2023-08-27 06:22:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737870662] [2023-08-27 06:22:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:29,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:29,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737870662] [2023-08-27 06:22:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737870662] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819007857] [2023-08-27 06:22:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:29,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:29,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:29,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:29,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:29,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:29,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:29,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:29,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:34,463 INFO L124 PetriNetUnfolderBase]: 3507/5238 cut-off events. [2023-08-27 06:22:34,464 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-08-27 06:22:34,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10553 conditions, 5238 events. 3507/5238 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 30091 event pairs, 3507 based on Foata normal form. 0/1648 useless extension candidates. Maximal degree in co-relation 10549. Up to 5238 conditions per place. [2023-08-27 06:22:34,474 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-27 06:22:34,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 171 flow [2023-08-27 06:22:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-08-27 06:22:34,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4287245444801715 [2023-08-27 06:22:34,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-08-27 06:22:34,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-08-27 06:22:34,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:34,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-08-27 06:22:34,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2023-08-27 06:22:34,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:34,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:34,478 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 99 flow. Second operand 3 states and 400 transitions. [2023-08-27 06:22:34,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 171 flow [2023-08-27 06:22:34,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:34,478 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 96 flow [2023-08-27 06:22:34,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2023-08-27 06:22:34,479 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -41 predicate places. [2023-08-27 06:22:34,479 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 96 flow [2023-08-27 06:22:34,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:34,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:34,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:34,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 06:22:34,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:34,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2359653, now seen corresponding path program 1 times [2023-08-27 06:22:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875152242] [2023-08-27 06:22:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:34,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:34,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875152242] [2023-08-27 06:22:34,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875152242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:34,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:34,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190215609] [2023-08-27 06:22:34,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:34,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:34,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:34,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:34,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:34,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:34,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:38,334 INFO L124 PetriNetUnfolderBase]: 2615/3946 cut-off events. [2023-08-27 06:22:38,334 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 06:22:38,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7958 conditions, 3946 events. 2615/3946 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 21972 event pairs, 2615 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 7954. Up to 3946 conditions per place. [2023-08-27 06:22:38,343 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-27 06:22:38,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 164 flow [2023-08-27 06:22:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-08-27 06:22:38,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265809217577706 [2023-08-27 06:22:38,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-08-27 06:22:38,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-08-27 06:22:38,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:38,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-08-27 06:22:38,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-08-27 06:22:38,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:38,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:38,346 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 96 flow. Second operand 3 states and 398 transitions. [2023-08-27 06:22:38,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 164 flow [2023-08-27 06:22:38,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 36 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:38,347 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 93 flow [2023-08-27 06:22:38,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2023-08-27 06:22:38,347 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -42 predicate places. [2023-08-27 06:22:38,347 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 93 flow [2023-08-27 06:22:38,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:38,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:38,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:38,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 06:22:38,348 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:38,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2359654, now seen corresponding path program 1 times [2023-08-27 06:22:38,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:38,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663931726] [2023-08-27 06:22:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:38,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:38,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:38,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663931726] [2023-08-27 06:22:38,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663931726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:38,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:38,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:38,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287518752] [2023-08-27 06:22:38,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:38,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:38,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:38,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:38,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:38,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:38,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:38,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:38,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:38,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:41,375 INFO L124 PetriNetUnfolderBase]: 1829/2804 cut-off events. [2023-08-27 06:22:41,375 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-08-27 06:22:41,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5663 conditions, 2804 events. 1829/2804 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 14960 event pairs, 1829 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 5659. Up to 2804 conditions per place. [2023-08-27 06:22:41,382 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-27 06:22:41,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 34 transitions, 157 flow [2023-08-27 06:22:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:41,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-08-27 06:22:41,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42443729903536975 [2023-08-27 06:22:41,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-08-27 06:22:41,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-08-27 06:22:41,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:41,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-08-27 06:22:41,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-08-27 06:22:41,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:41,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:41,386 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 93 flow. Second operand 3 states and 396 transitions. [2023-08-27 06:22:41,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 34 transitions, 157 flow [2023-08-27 06:22:41,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 34 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:41,387 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 90 flow [2023-08-27 06:22:41,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2023-08-27 06:22:41,388 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -43 predicate places. [2023-08-27 06:22:41,388 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 90 flow [2023-08-27 06:22:41,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:41,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:41,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:22:41,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 06:22:41,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:41,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2359656, now seen corresponding path program 1 times [2023-08-27 06:22:41,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:41,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703898293] [2023-08-27 06:22:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:41,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703898293] [2023-08-27 06:22:41,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703898293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:41,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:41,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:41,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089432683] [2023-08-27 06:22:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:41,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:41,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:41,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:41,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:41,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:41,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:41,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:41,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:41,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:43,374 INFO L124 PetriNetUnfolderBase]: 1157/1824 cut-off events. [2023-08-27 06:22:43,374 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-08-27 06:22:43,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3690 conditions, 1824 events. 1157/1824 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9251 event pairs, 1157 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 3686. Up to 1824 conditions per place. [2023-08-27 06:22:43,377 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-27 06:22:43,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 150 flow [2023-08-27 06:22:43,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:43,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-27 06:22:43,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42229367631296894 [2023-08-27 06:22:43,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-27 06:22:43,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-27 06:22:43,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:43,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-27 06:22:43,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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) [2023-08-27 06:22:43,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:43,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:43,380 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 90 flow. Second operand 3 states and 394 transitions. [2023-08-27 06:22:43,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 150 flow [2023-08-27 06:22:43,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 32 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:43,381 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 87 flow [2023-08-27 06:22:43,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2023-08-27 06:22:43,381 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2023-08-27 06:22:43,382 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 87 flow [2023-08-27 06:22:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 06:22:43,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:43,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:43,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 06:22:43,382 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:43,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105783, now seen corresponding path program 1 times [2023-08-27 06:22:43,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:43,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014022749] [2023-08-27 06:22:43,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:43,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:43,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:43,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014022749] [2023-08-27 06:22:43,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014022749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:43,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:43,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:43,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423473708] [2023-08-27 06:22:43,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:43,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:43,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:43,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:43,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:43,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:43,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:43,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:43,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:43,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:44,940 INFO L124 PetriNetUnfolderBase]: 933/1480 cut-off events. [2023-08-27 06:22:44,940 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 06:22:44,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3001 conditions, 1480 events. 933/1480 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7203 event pairs, 933 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 2997. Up to 1480 conditions per place. [2023-08-27 06:22:44,943 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-27 06:22:44,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 143 flow [2023-08-27 06:22:44,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-27 06:22:44,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42015005359056806 [2023-08-27 06:22:44,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-27 06:22:44,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-27 06:22:44,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:44,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-27 06:22:44,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-08-27 06:22:44,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:44,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:44,947 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 87 flow. Second operand 3 states and 392 transitions. [2023-08-27 06:22:44,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 143 flow [2023-08-27 06:22:44,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 30 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:44,947 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 84 flow [2023-08-27 06:22:44,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2023-08-27 06:22:44,948 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -45 predicate places. [2023-08-27 06:22:44,948 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 84 flow [2023-08-27 06:22:44,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:44,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:44,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:44,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 06:22:44,948 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:44,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105782, now seen corresponding path program 1 times [2023-08-27 06:22:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:44,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512022956] [2023-08-27 06:22:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:44,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:45,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:45,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512022956] [2023-08-27 06:22:45,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512022956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:45,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579769427] [2023-08-27 06:22:45,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:45,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:45,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:45,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:45,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:45,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:45,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:45,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:46,021 INFO L124 PetriNetUnfolderBase]: 733/1172 cut-off events. [2023-08-27 06:22:46,021 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 06:22:46,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 1172 events. 733/1172 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5440 event pairs, 733 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 2380. Up to 1172 conditions per place. [2023-08-27 06:22:46,024 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-27 06:22:46,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 28 transitions, 136 flow [2023-08-27 06:22:46,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-08-27 06:22:46,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180064308681672 [2023-08-27 06:22:46,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-08-27 06:22:46,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-08-27 06:22:46,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:46,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-08-27 06:22:46,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2023-08-27 06:22:46,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:46,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:46,027 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 84 flow. Second operand 3 states and 390 transitions. [2023-08-27 06:22:46,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 28 transitions, 136 flow [2023-08-27 06:22:46,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 28 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:46,028 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 81 flow [2023-08-27 06:22:46,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-08-27 06:22:46,028 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -46 predicate places. [2023-08-27 06:22:46,028 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 81 flow [2023-08-27 06:22:46,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:46,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:46,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:46,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 06:22:46,029 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:46,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105801, now seen corresponding path program 1 times [2023-08-27 06:22:46,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:46,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422680682] [2023-08-27 06:22:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:46,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:46,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422680682] [2023-08-27 06:22:46,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422680682] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:46,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:46,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:46,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847037912] [2023-08-27 06:22:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:46,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:46,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:46,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:46,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:46,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:46,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:46,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:46,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:46,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:46,829 INFO L124 PetriNetUnfolderBase]: 557/900 cut-off events. [2023-08-27 06:22:46,830 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-08-27 06:22:46,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 900 events. 557/900 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3978 event pairs, 557 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 1835. Up to 900 conditions per place. [2023-08-27 06:22:46,832 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 06:22:46,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 26 transitions, 129 flow [2023-08-27 06:22:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-08-27 06:22:46,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41586280814576637 [2023-08-27 06:22:46,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-08-27 06:22:46,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-08-27 06:22:46,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:46,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-08-27 06:22:46,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-08-27 06:22:46,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:46,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:46,835 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 81 flow. Second operand 3 states and 388 transitions. [2023-08-27 06:22:46,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 26 transitions, 129 flow [2023-08-27 06:22:46,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 26 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:46,836 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 78 flow [2023-08-27 06:22:46,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2023-08-27 06:22:46,836 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -47 predicate places. [2023-08-27 06:22:46,836 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 78 flow [2023-08-27 06:22:46,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:46,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:46,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:46,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 06:22:46,836 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:46,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105800, now seen corresponding path program 1 times [2023-08-27 06:22:46,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:46,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965129623] [2023-08-27 06:22:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:46,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:46,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965129623] [2023-08-27 06:22:46,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965129623] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:46,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:46,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:46,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343315667] [2023-08-27 06:22:46,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:46,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:46,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:46,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:46,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:46,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:46,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:46,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:46,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:46,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:47,515 INFO L124 PetriNetUnfolderBase]: 405/664 cut-off events. [2023-08-27 06:22:47,515 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 06:22:47,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 664 events. 405/664 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2730 event pairs, 405 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 1362. Up to 664 conditions per place. [2023-08-27 06:22:47,517 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 06:22:47,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 122 flow [2023-08-27 06:22:47,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-08-27 06:22:47,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4137191854233655 [2023-08-27 06:22:47,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-08-27 06:22:47,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-08-27 06:22:47,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:47,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-08-27 06:22:47,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2023-08-27 06:22:47,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:47,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:47,520 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 78 flow. Second operand 3 states and 386 transitions. [2023-08-27 06:22:47,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 122 flow [2023-08-27 06:22:47,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 24 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:47,520 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 75 flow [2023-08-27 06:22:47,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2023-08-27 06:22:47,521 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -48 predicate places. [2023-08-27 06:22:47,521 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 75 flow [2023-08-27 06:22:47,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:47,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:47,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:47,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 06:22:47,521 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:47,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:47,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105795, now seen corresponding path program 1 times [2023-08-27 06:22:47,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:47,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917445930] [2023-08-27 06:22:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:47,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:47,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917445930] [2023-08-27 06:22:47,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917445930] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:47,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:47,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222222078] [2023-08-27 06:22:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:47,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:47,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:47,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:47,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:47,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:47,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:47,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:47,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:47,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:48,081 INFO L124 PetriNetUnfolderBase]: 277/464 cut-off events. [2023-08-27 06:22:48,081 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-27 06:22:48,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 464 events. 277/464 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1761 event pairs, 277 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 961. Up to 464 conditions per place. [2023-08-27 06:22:48,083 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 06:22:48,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 115 flow [2023-08-27 06:22:48,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-08-27 06:22:48,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4115755627009646 [2023-08-27 06:22:48,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-08-27 06:22:48,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-08-27 06:22:48,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:48,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-08-27 06:22:48,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2023-08-27 06:22:48,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,103 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 75 flow. Second operand 3 states and 384 transitions. [2023-08-27 06:22:48,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 115 flow [2023-08-27 06:22:48,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 22 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:48,103 INFO L231 Difference]: Finished difference. Result has 49 places, 22 transitions, 72 flow [2023-08-27 06:22:48,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=49, PETRI_TRANSITIONS=22} [2023-08-27 06:22:48,104 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -49 predicate places. [2023-08-27 06:22:48,104 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 22 transitions, 72 flow [2023-08-27 06:22:48,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:48,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:48,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:48,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 06:22:48,104 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:48,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105794, now seen corresponding path program 1 times [2023-08-27 06:22:48,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:48,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766311599] [2023-08-27 06:22:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:48,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:48,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766311599] [2023-08-27 06:22:48,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766311599] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:48,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:48,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:48,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040046358] [2023-08-27 06:22:48,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:48,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:48,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:48,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:48,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:48,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 22 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:48,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:48,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:48,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:48,613 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 06:22:48,614 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 06:22:48,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 300 events. 173/300 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1005 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 632. Up to 300 conditions per place. [2023-08-27 06:22:48,615 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 06:22:48,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 108 flow [2023-08-27 06:22:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:48,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-27 06:22:48,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40943193997856375 [2023-08-27 06:22:48,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-27 06:22:48,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-27 06:22:48,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:48,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-27 06:22:48,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2023-08-27 06:22:48,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,617 INFO L175 Difference]: Start difference. First operand has 49 places, 22 transitions, 72 flow. Second operand 3 states and 382 transitions. [2023-08-27 06:22:48,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 108 flow [2023-08-27 06:22:48,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 20 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:48,618 INFO L231 Difference]: Finished difference. Result has 48 places, 20 transitions, 69 flow [2023-08-27 06:22:48,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=48, PETRI_TRANSITIONS=20} [2023-08-27 06:22:48,618 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -50 predicate places. [2023-08-27 06:22:48,618 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 20 transitions, 69 flow [2023-08-27 06:22:48,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:48,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:48,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:48,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 06:22:48,619 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:48,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:48,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105789, now seen corresponding path program 1 times [2023-08-27 06:22:48,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:48,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844778997] [2023-08-27 06:22:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:48,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844778997] [2023-08-27 06:22:48,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844778997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:48,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:48,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810312358] [2023-08-27 06:22:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:48,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:48,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:48,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 20 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:48,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:48,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:48,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:48,937 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 06:22:48,937 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:22:48,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 172 events. 93/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 375. Up to 172 conditions per place. [2023-08-27 06:22:48,938 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 06:22:48,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 101 flow [2023-08-27 06:22:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-08-27 06:22:48,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40728831725616294 [2023-08-27 06:22:48,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-08-27 06:22:48,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-08-27 06:22:48,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:48,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-08-27 06:22:48,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-08-27 06:22:48,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:48,941 INFO L175 Difference]: Start difference. First operand has 48 places, 20 transitions, 69 flow. Second operand 3 states and 380 transitions. [2023-08-27 06:22:48,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 101 flow [2023-08-27 06:22:48,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 18 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:48,941 INFO L231 Difference]: Finished difference. Result has 47 places, 18 transitions, 66 flow [2023-08-27 06:22:48,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=47, PETRI_TRANSITIONS=18} [2023-08-27 06:22:48,941 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -51 predicate places. [2023-08-27 06:22:48,942 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 18 transitions, 66 flow [2023-08-27 06:22:48,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:48,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:48,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:22:48,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 06:22:48,942 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:48,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105788, now seen corresponding path program 1 times [2023-08-27 06:22:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:48,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928542579] [2023-08-27 06:22:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:48,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:49,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:49,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928542579] [2023-08-27 06:22:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928542579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:49,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:49,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:22:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290158817] [2023-08-27 06:22:49,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:49,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:22:49,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:22:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:22:49,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 06:22:49,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 18 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:49,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:49,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 06:22:49,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:49,161 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 06:22:49,161 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:22:49,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 80 events. 37/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 190. Up to 80 conditions per place. [2023-08-27 06:22:49,162 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 06:22:49,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 94 flow [2023-08-27 06:22:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:22:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:22:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-27 06:22:49,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40514469453376206 [2023-08-27 06:22:49,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-27 06:22:49,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-27 06:22:49,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:49,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-27 06:22:49,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2023-08-27 06:22:49,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:49,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 06:22:49,165 INFO L175 Difference]: Start difference. First operand has 47 places, 18 transitions, 66 flow. Second operand 3 states and 378 transitions. [2023-08-27 06:22:49,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 94 flow [2023-08-27 06:22:49,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 16 transitions, 93 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:49,165 INFO L231 Difference]: Finished difference. Result has 46 places, 16 transitions, 63 flow [2023-08-27 06:22:49,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=46, PETRI_TRANSITIONS=16} [2023-08-27 06:22:49,165 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -52 predicate places. [2023-08-27 06:22:49,165 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 16 transitions, 63 flow [2023-08-27 06:22:49,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 06:22:49,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:49,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:22:49,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 06:22:49,166 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:49,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:49,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2009783590, now seen corresponding path program 1 times [2023-08-27 06:22:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:49,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249936746] [2023-08-27 06:22:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:49,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:22:55,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:22:55,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:22:55,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249936746] [2023-08-27 06:22:55,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249936746] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:22:55,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:22:55,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:22:55,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888233727] [2023-08-27 06:22:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:22:55,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:22:55,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:22:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:22:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:22:55,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:22:55,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 16 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:22:55,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:22:55,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:22:55,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:22:55,648 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 06:22:55,648 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 06:22:55,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 345 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 244. Up to 48 conditions per place. [2023-08-27 06:22:55,648 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-27 06:22:55,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 217 flow [2023-08-27 06:22:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:22:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:22:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2023-08-27 06:22:55,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32636655948553056 [2023-08-27 06:22:55,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2023-08-27 06:22:55,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2023-08-27 06:22:55,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:22:55,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2023-08-27 06:22:55,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-08-27 06:22:55,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:22:55,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:22:55,652 INFO L175 Difference]: Start difference. First operand has 46 places, 16 transitions, 63 flow. Second operand 6 states and 609 transitions. [2023-08-27 06:22:55,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 217 flow [2023-08-27 06:22:55,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:22:55,653 INFO L231 Difference]: Finished difference. Result has 52 places, 18 transitions, 81 flow [2023-08-27 06:22:55,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=52, PETRI_TRANSITIONS=18} [2023-08-27 06:22:55,654 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -46 predicate places. [2023-08-27 06:22:55,654 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 18 transitions, 81 flow [2023-08-27 06:22:55,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:22:55,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:22:55,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:22:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 06:22:55,654 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:22:55,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:22:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1138749694, now seen corresponding path program 2 times [2023-08-27 06:22:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:22:55,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650595044] [2023-08-27 06:22:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:22:55,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:22:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:23:01,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:01,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650595044] [2023-08-27 06:23:01,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650595044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:01,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:01,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:23:01,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177769645] [2023-08-27 06:23:01,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:01,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:23:01,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:01,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:23:01,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:23:01,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:23:01,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:01,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:01,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:23:01,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:02,090 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 06:23:02,090 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-27 06:23:02,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 404 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 312. Up to 45 conditions per place. [2023-08-27 06:23:02,091 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-27 06:23:02,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 259 flow [2023-08-27 06:23:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 610 transitions. [2023-08-27 06:23:02,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32690246516613075 [2023-08-27 06:23:02,092 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 610 transitions. [2023-08-27 06:23:02,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 610 transitions. [2023-08-27 06:23:02,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:02,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 610 transitions. [2023-08-27 06:23:02,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 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) [2023-08-27 06:23:02,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:02,095 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:02,095 INFO L175 Difference]: Start difference. First operand has 52 places, 18 transitions, 81 flow. Second operand 6 states and 610 transitions. [2023-08-27 06:23:02,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 259 flow [2023-08-27 06:23:02,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 255 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 06:23:02,096 INFO L231 Difference]: Finished difference. Result has 59 places, 21 transitions, 119 flow [2023-08-27 06:23:02,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=119, PETRI_PLACES=59, PETRI_TRANSITIONS=21} [2023-08-27 06:23:02,096 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -39 predicate places. [2023-08-27 06:23:02,097 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 21 transitions, 119 flow [2023-08-27 06:23:02,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:02,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:02,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:23:02,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 06:23:02,097 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:23:02,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:02,097 INFO L85 PathProgramCache]: Analyzing trace with hash 490585554, now seen corresponding path program 3 times [2023-08-27 06:23:02,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:02,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825238025] [2023-08-27 06:23:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:02,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:23:07,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:07,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825238025] [2023-08-27 06:23:07,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825238025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:07,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:07,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:23:07,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090605494] [2023-08-27 06:23:07,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:07,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:23:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:23:07,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:23:07,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:23:07,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 21 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:07,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:07,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:23:07,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:07,714 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2023-08-27 06:23:07,714 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-08-27 06:23:07,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 98 events. 32/98 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 2 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 330. Up to 46 conditions per place. [2023-08-27 06:23:07,715 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-08-27 06:23:07,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 44 transitions, 274 flow [2023-08-27 06:23:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2023-08-27 06:23:07,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3258306538049303 [2023-08-27 06:23:07,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2023-08-27 06:23:07,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2023-08-27 06:23:07,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:07,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2023-08-27 06:23:07,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2023-08-27 06:23:07,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:07,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:07,719 INFO L175 Difference]: Start difference. First operand has 59 places, 21 transitions, 119 flow. Second operand 6 states and 608 transitions. [2023-08-27 06:23:07,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 44 transitions, 274 flow [2023-08-27 06:23:07,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 44 transitions, 263 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 06:23:07,720 INFO L231 Difference]: Finished difference. Result has 63 places, 20 transitions, 126 flow [2023-08-27 06:23:07,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=63, PETRI_TRANSITIONS=20} [2023-08-27 06:23:07,720 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -35 predicate places. [2023-08-27 06:23:07,720 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 20 transitions, 126 flow [2023-08-27 06:23:07,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:07,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:07,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:23:07,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 06:23:07,721 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:23:07,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:07,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1411822290, now seen corresponding path program 4 times [2023-08-27 06:23:07,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:07,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055096201] [2023-08-27 06:23:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:07,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:23:12,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:12,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055096201] [2023-08-27 06:23:12,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055096201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:12,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:12,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:23:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912808697] [2023-08-27 06:23:12,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:12,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:23:12,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:12,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:23:12,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:23:12,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:23:12,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 20 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:12,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:12,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:23:12,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:13,184 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2023-08-27 06:23:13,184 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 06:23:13,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 54 events. 16/54 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 217. Up to 20 conditions per place. [2023-08-27 06:23:13,185 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 18 selfloop transitions, 5 changer transitions 10/33 dead transitions. [2023-08-27 06:23:13,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 33 transitions, 223 flow [2023-08-27 06:23:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 597 transitions. [2023-08-27 06:23:13,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.319935691318328 [2023-08-27 06:23:13,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 597 transitions. [2023-08-27 06:23:13,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 597 transitions. [2023-08-27 06:23:13,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:13,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 597 transitions. [2023-08-27 06:23:13,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2023-08-27 06:23:13,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:13,199 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:13,199 INFO L175 Difference]: Start difference. First operand has 63 places, 20 transitions, 126 flow. Second operand 6 states and 597 transitions. [2023-08-27 06:23:13,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 33 transitions, 223 flow [2023-08-27 06:23:13,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 33 transitions, 202 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-27 06:23:13,200 INFO L231 Difference]: Finished difference. Result has 61 places, 18 transitions, 102 flow [2023-08-27 06:23:13,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=61, PETRI_TRANSITIONS=18} [2023-08-27 06:23:13,202 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -37 predicate places. [2023-08-27 06:23:13,202 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 18 transitions, 102 flow [2023-08-27 06:23:13,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:13,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:13,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:23:13,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 06:23:13,202 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:23:13,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2020224430, now seen corresponding path program 5 times [2023-08-27 06:23:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473081498] [2023-08-27 06:23:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:23:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:17,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473081498] [2023-08-27 06:23:17,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473081498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:17,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:17,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:23:17,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445023142] [2023-08-27 06:23:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:17,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:23:17,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:17,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:23:17,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:23:17,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:23:17,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 18 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:17,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:17,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:23:17,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:17,839 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-27 06:23:17,839 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-27 06:23:17,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 40 events. 8/40 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 157. Up to 19 conditions per place. [2023-08-27 06:23:17,839 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-27 06:23:17,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 30 transitions, 198 flow [2023-08-27 06:23:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:17,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:17,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2023-08-27 06:23:17,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31886387995712756 [2023-08-27 06:23:17,841 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2023-08-27 06:23:17,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2023-08-27 06:23:17,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:17,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2023-08-27 06:23:17,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 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) [2023-08-27 06:23:17,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:17,843 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:17,843 INFO L175 Difference]: Start difference. First operand has 61 places, 18 transitions, 102 flow. Second operand 6 states and 595 transitions. [2023-08-27 06:23:17,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 30 transitions, 198 flow [2023-08-27 06:23:17,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 30 transitions, 168 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 06:23:17,844 INFO L231 Difference]: Finished difference. Result has 58 places, 16 transitions, 80 flow [2023-08-27 06:23:17,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=58, PETRI_TRANSITIONS=16} [2023-08-27 06:23:17,844 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2023-08-27 06:23:17,844 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 16 transitions, 80 flow [2023-08-27 06:23:17,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:17,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:23:17,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:23:17,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 06:23:17,845 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 06:23:17,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:23:17,845 INFO L85 PathProgramCache]: Analyzing trace with hash -11076358, now seen corresponding path program 6 times [2023-08-27 06:23:17,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:23:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586084100] [2023-08-27 06:23:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:23:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:23:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:23:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:23:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:23:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586084100] [2023-08-27 06:23:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586084100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:23:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:23:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:23:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732393735] [2023-08-27 06:23:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:23:23,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:23:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:23:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:23:23,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:23:23,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 06:23:23,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 16 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:23,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:23:23,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 06:23:23,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:23:23,987 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-27 06:23:23,987 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:23:23,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 86. Up to 8 conditions per place. [2023-08-27 06:23:23,987 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 06:23:23,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 18 transitions, 118 flow [2023-08-27 06:23:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:23:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:23:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-08-27 06:23:23,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.312433011789925 [2023-08-27 06:23:23,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-08-27 06:23:23,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-08-27 06:23:23,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:23:23,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-08-27 06:23:23,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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) [2023-08-27 06:23:23,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:23,990 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 06:23:23,991 INFO L175 Difference]: Start difference. First operand has 58 places, 16 transitions, 80 flow. Second operand 6 states and 583 transitions. [2023-08-27 06:23:23,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 18 transitions, 118 flow [2023-08-27 06:23:23,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 18 transitions, 106 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 06:23:23,991 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-08-27 06:23:23,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-08-27 06:23:23,991 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2023-08-27 06:23:23,991 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-08-27 06:23:23,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 06:23:23,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (147 of 148 remaining) [2023-08-27 06:23:23,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 148 remaining) [2023-08-27 06:23:23,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 148 remaining) [2023-08-27 06:23:23,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 148 remaining) [2023-08-27 06:23:23,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 148 remaining) [2023-08-27 06:23:24,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 148 remaining) [2023-08-27 06:23:24,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 148 remaining) [2023-08-27 06:23:24,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (75 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 148 remaining) [2023-08-27 06:23:24,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 148 remaining) [2023-08-27 06:23:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 148 remaining) [2023-08-27 06:23:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 148 remaining) [2023-08-27 06:23:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 148 remaining) [2023-08-27 06:23:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 148 remaining) [2023-08-27 06:23:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 148 remaining) [2023-08-27 06:23:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 148 remaining) [2023-08-27 06:23:24,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 148 remaining) [2023-08-27 06:23:24,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 148 remaining) [2023-08-27 06:23:24,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 148 remaining) [2023-08-27 06:23:24,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-27 06:23:24,010 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:23:24,014 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:23:24,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:23:24,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:23:24 BasicIcfg [2023-08-27 06:23:24,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:23:24,019 INFO L158 Benchmark]: Toolchain (without parser) took 468668.37ms. Allocated memory was 396.4MB in the beginning and 4.6GB in the end (delta: 4.2GB). Free memory was 372.2MB in the beginning and 2.3GB in the end (delta: -1.9GB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. [2023-08-27 06:23:24,019 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 396.4MB. Free memory is still 372.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:23:24,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.56ms. Allocated memory is still 396.4MB. Free memory was 371.4MB in the beginning and 360.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 06:23:24,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.25ms. Allocated memory is still 396.4MB. Free memory was 360.1MB in the beginning and 356.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 06:23:24,021 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 396.4MB. Free memory was 356.7MB in the beginning and 353.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:23:24,021 INFO L158 Benchmark]: RCFGBuilder took 4126.21ms. Allocated memory was 396.4MB in the beginning and 1.0GB in the end (delta: 643.8MB). Free memory was 353.8MB in the beginning and 937.1MB in the end (delta: -583.3MB). Peak memory consumption was 341.1MB. Max. memory is 16.0GB. [2023-08-27 06:23:24,025 INFO L158 Benchmark]: TraceAbstraction took 464241.86ms. Allocated memory was 1.0GB in the beginning and 4.6GB in the end (delta: 3.6GB). Free memory was 936.0MB in the beginning and 2.3GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2023-08-27 06:23:24,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 396.4MB. Free memory is still 372.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 201.56ms. Allocated memory is still 396.4MB. Free memory was 371.4MB in the beginning and 360.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.25ms. Allocated memory is still 396.4MB. Free memory was 360.1MB in the beginning and 356.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.22ms. Allocated memory is still 396.4MB. Free memory was 356.7MB in the beginning and 353.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 4126.21ms. Allocated memory was 396.4MB in the beginning and 1.0GB in the end (delta: 643.8MB). Free memory was 353.8MB in the beginning and 937.1MB in the end (delta: -583.3MB). Peak memory consumption was 341.1MB. Max. memory is 16.0GB. * TraceAbstraction took 464241.86ms. Allocated memory was 1.0GB in the beginning and 4.6GB in the end (delta: 3.6GB). Free memory was 936.0MB in the beginning and 2.3GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4s, 200 PlacesBefore, 98 PlacesAfterwards, 191 TransitionsBefore, 88 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 84 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 4326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4326, independent: 4326, independent conditional: 0, independent unconditional: 4326, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1311, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4326, independent: 3015, independent conditional: 0, independent unconditional: 3015, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1311, unknown conditional: 0, unknown unconditional: 1311] , Statistics on independence cache: Total cache size (in pairs): 378, Positive cache size: 378, Positive conditional cache size: 0, Positive unconditional cache size: 378, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 292 locations, 148 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: 463.0s, OverallIterations: 31, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 376.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 49.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1041 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1041 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1429 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 0 mSDtfsCounter, 1429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=0, InterpolantAutomatonStates: 110, 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: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 33.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 2177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 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 73 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 06:23:24,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...