/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:42:05,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:42:05,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:42:05,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:42:05,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:42:05,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:42:05,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:42:05,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:42:05,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:42:05,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:42:05,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:42:05,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:42:05,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:42:05,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:42:05,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:42:05,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:42:05,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:42:05,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:42:05,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:42:05,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:42:05,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:42:05,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:42:05,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:42:05,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:42:05,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:42:05,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:42:05,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:42:05,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:42:05,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:42:05,778 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:42:05,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:42:05,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:42:05,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:42:05,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:42:05,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:42:05,781 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:42:05,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:42:05,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:42:05,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:42:05,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:42:05,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:42:05,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:42:05,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:42:05,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:42:05,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:42:05,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:42:05,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:42:05,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:42:05,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:42:05,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:42:05,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:42:05,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:42:05,786 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:42:05,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:42:05,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:42:06,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:42:06,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:42:06,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:42:06,083 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:42:06,083 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:42:06,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-09-16 11:42:06,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0743e74/45f560724e6744afb76ddbcd369a77e3/FLAGe5c80b188 [2022-09-16 11:42:06,690 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:42:06,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-09-16 11:42:06,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0743e74/45f560724e6744afb76ddbcd369a77e3/FLAGe5c80b188 [2022-09-16 11:42:06,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0743e74/45f560724e6744afb76ddbcd369a77e3 [2022-09-16 11:42:06,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:42:06,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:42:06,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:42:06,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:42:06,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:42:06,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:42:06" (1/1) ... [2022-09-16 11:42:06,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ff5a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:06, skipping insertion in model container [2022-09-16 11:42:06,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:42:06" (1/1) ... [2022-09-16 11:42:06,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:42:07,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:42:07,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-09-16 11:42:07,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:42:07,385 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:42:07,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-09-16 11:42:07,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:42:07,472 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:42:07,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07 WrapperNode [2022-09-16 11:42:07,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:42:07,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:42:07,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:42:07,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:42:07,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,540 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 167 [2022-09-16 11:42:07,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:42:07,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:42:07,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:42:07,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:42:07,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:42:07,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:42:07,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:42:07,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:42:07,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (1/1) ... [2022-09-16 11:42:07,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:42:07,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:42:07,605 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) [2022-09-16 11:42:07,621 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 [2022-09-16 11:42:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:42:07,650 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:42:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:42:07,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:42:07,652 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:42:07,789 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:42:07,791 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:42:08,181 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:42:08,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:42:08,195 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:42:08,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:42:08 BoogieIcfgContainer [2022-09-16 11:42:08,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:42:08,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:42:08,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:42:08,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:42:08,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:42:06" (1/3) ... [2022-09-16 11:42:08,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20619c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:42:08, skipping insertion in model container [2022-09-16 11:42:08,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:42:07" (2/3) ... [2022-09-16 11:42:08,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20619c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:42:08, skipping insertion in model container [2022-09-16 11:42:08,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:42:08" (3/3) ... [2022-09-16 11:42:08,205 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-09-16 11:42:08,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:42:08,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 11:42:08,221 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:42:08,319 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:42:08,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 224 transitions, 453 flow [2022-09-16 11:42:08,478 INFO L130 PetriNetUnfolder]: 12/227 cut-off events. [2022-09-16 11:42:08,478 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:42:08,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 227 events. 12/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 270 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-09-16 11:42:08,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 224 transitions, 453 flow [2022-09-16 11:42:08,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 222 transitions, 447 flow [2022-09-16 11:42:08,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:42:08,524 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;@58f43d21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:42:08,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-09-16 11:42:08,584 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-09-16 11:42:08,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:42:08,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:08,585 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:08,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:08,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1297078443, now seen corresponding path program 1 times [2022-09-16 11:42:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:08,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971613516] [2022-09-16 11:42:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:08,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:08,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971613516] [2022-09-16 11:42:08,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971613516] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:08,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:08,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:42:08,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562334859] [2022-09-16 11:42:08,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:08,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:42:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:08,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:42:08,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:42:08,944 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-09-16 11:42:08,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 222 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:08,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:08,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-09-16 11:42:08,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:09,067 INFO L130 PetriNetUnfolder]: 5/211 cut-off events. [2022-09-16 11:42:09,067 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:42:09,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 211 events. 5/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 32/220 useless extension candidates. Maximal degree in co-relation 185. Up to 17 conditions per place. [2022-09-16 11:42:09,073 INFO L137 encePairwiseOnDemand]: 214/224 looper letters, 18 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-09-16 11:42:09,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 211 transitions, 465 flow [2022-09-16 11:42:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:42:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:42:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 810 transitions. [2022-09-16 11:42:09,094 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9040178571428571 [2022-09-16 11:42:09,095 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 810 transitions. [2022-09-16 11:42:09,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 810 transitions. [2022-09-16 11:42:09,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:09,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 810 transitions. [2022-09-16 11:42:09,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,118 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,120 INFO L175 Difference]: Start difference. First operand has 214 places, 222 transitions, 447 flow. Second operand 4 states and 810 transitions. [2022-09-16 11:42:09,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 211 transitions, 465 flow [2022-09-16 11:42:09,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 211 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:42:09,134 INFO L231 Difference]: Finished difference. Result has 212 places, 211 transitions, 428 flow [2022-09-16 11:42:09,136 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=211} [2022-09-16 11:42:09,141 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-09-16 11:42:09,141 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 211 transitions, 428 flow [2022-09-16 11:42:09,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:09,143 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:42:09,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:09,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1554726506, now seen corresponding path program 1 times [2022-09-16 11:42:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:09,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560582262] [2022-09-16 11:42:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:09,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:09,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:09,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560582262] [2022-09-16 11:42:09,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560582262] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:09,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:09,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:42:09,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831573017] [2022-09-16 11:42:09,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:09,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:42:09,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:09,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:42:09,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:42:09,258 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 224 [2022-09-16 11:42:09,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 211 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:09,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 224 [2022-09-16 11:42:09,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:09,365 INFO L130 PetriNetUnfolder]: 5/256 cut-off events. [2022-09-16 11:42:09,365 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:42:09,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 256 events. 5/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 471 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 243. Up to 15 conditions per place. [2022-09-16 11:42:09,373 INFO L137 encePairwiseOnDemand]: 218/224 looper letters, 27 selfloop transitions, 4 changer transitions 0/219 dead transitions. [2022-09-16 11:42:09,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 219 transitions, 506 flow [2022-09-16 11:42:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:42:09,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:42:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 793 transitions. [2022-09-16 11:42:09,384 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8850446428571429 [2022-09-16 11:42:09,384 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 793 transitions. [2022-09-16 11:42:09,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 793 transitions. [2022-09-16 11:42:09,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:09,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 793 transitions. [2022-09-16 11:42:09,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,388 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,388 INFO L175 Difference]: Start difference. First operand has 212 places, 211 transitions, 428 flow. Second operand 4 states and 793 transitions. [2022-09-16 11:42:09,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 219 transitions, 506 flow [2022-09-16 11:42:09,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 219 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:09,394 INFO L231 Difference]: Finished difference. Result has 215 places, 212 transitions, 449 flow [2022-09-16 11:42:09,394 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=215, PETRI_TRANSITIONS=212} [2022-09-16 11:42:09,395 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2022-09-16 11:42:09,395 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 212 transitions, 449 flow [2022-09-16 11:42:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:09,396 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:09,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:42:09,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:09,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash 564893835, now seen corresponding path program 1 times [2022-09-16 11:42:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064925076] [2022-09-16 11:42:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:09,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:09,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064925076] [2022-09-16 11:42:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064925076] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:42:09,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819293450] [2022-09-16 11:42:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:09,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:42:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:42:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:42:09,509 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-09-16 11:42:09,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 212 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:09,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-09-16 11:42:09,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:09,600 INFO L130 PetriNetUnfolder]: 3/205 cut-off events. [2022-09-16 11:42:09,600 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:42:09,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 205 events. 3/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 222 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 184. Up to 11 conditions per place. [2022-09-16 11:42:09,602 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2022-09-16 11:42:09,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 205 transitions, 461 flow [2022-09-16 11:42:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:42:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:42:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-09-16 11:42:09,605 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-09-16 11:42:09,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-09-16 11:42:09,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-09-16 11:42:09,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:09,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-09-16 11:42:09,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,611 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,611 INFO L175 Difference]: Start difference. First operand has 215 places, 212 transitions, 449 flow. Second operand 5 states and 964 transitions. [2022-09-16 11:42:09,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 205 transitions, 461 flow [2022-09-16 11:42:09,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 205 transitions, 450 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-09-16 11:42:09,617 INFO L231 Difference]: Finished difference. Result has 211 places, 205 transitions, 422 flow [2022-09-16 11:42:09,617 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=211, PETRI_TRANSITIONS=205} [2022-09-16 11:42:09,618 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -3 predicate places. [2022-09-16 11:42:09,618 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 205 transitions, 422 flow [2022-09-16 11:42:09,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:09,619 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:09,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:42:09,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:09,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:09,620 INFO L85 PathProgramCache]: Analyzing trace with hash -325451141, now seen corresponding path program 1 times [2022-09-16 11:42:09,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:09,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322570142] [2022-09-16 11:42:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:09,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:09,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:09,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322570142] [2022-09-16 11:42:09,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322570142] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:09,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:09,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:42:09,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318112606] [2022-09-16 11:42:09,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:09,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:42:09,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:09,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:42:09,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:42:09,719 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-09-16 11:42:09,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 205 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:09,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-09-16 11:42:09,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:09,792 INFO L130 PetriNetUnfolder]: 3/203 cut-off events. [2022-09-16 11:42:09,792 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:42:09,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 203 events. 3/203 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 182. Up to 12 conditions per place. [2022-09-16 11:42:09,795 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 15 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-09-16 11:42:09,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 456 flow [2022-09-16 11:42:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:42:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:42:09,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 950 transitions. [2022-09-16 11:42:09,798 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2022-09-16 11:42:09,798 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 950 transitions. [2022-09-16 11:42:09,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 950 transitions. [2022-09-16 11:42:09,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:09,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 950 transitions. [2022-09-16 11:42:09,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,804 INFO L175 Difference]: Start difference. First operand has 211 places, 205 transitions, 422 flow. Second operand 5 states and 950 transitions. [2022-09-16 11:42:09,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 456 flow [2022-09-16 11:42:09,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 203 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:42:09,809 INFO L231 Difference]: Finished difference. Result has 209 places, 203 transitions, 418 flow [2022-09-16 11:42:09,810 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=418, PETRI_PLACES=209, PETRI_TRANSITIONS=203} [2022-09-16 11:42:09,811 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-09-16 11:42:09,811 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 203 transitions, 418 flow [2022-09-16 11:42:09,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:09,812 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:09,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:42:09,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:09,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash -314929310, now seen corresponding path program 1 times [2022-09-16 11:42:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:09,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890029393] [2022-09-16 11:42:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:09,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:09,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:09,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890029393] [2022-09-16 11:42:09,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890029393] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:09,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:09,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:42:09,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035211164] [2022-09-16 11:42:09,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:09,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:42:09,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:42:09,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:42:09,963 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-09-16 11:42:09,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 203 transitions, 418 flow. Second operand has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:09,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:09,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-09-16 11:42:09,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:10,077 INFO L130 PetriNetUnfolder]: 3/202 cut-off events. [2022-09-16 11:42:10,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:42:10,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 202 events. 3/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2022-09-16 11:42:10,080 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 17 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2022-09-16 11:42:10,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 202 transitions, 464 flow [2022-09-16 11:42:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:42:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:42:10,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1645 transitions. [2022-09-16 11:42:10,084 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8159722222222222 [2022-09-16 11:42:10,084 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1645 transitions. [2022-09-16 11:42:10,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1645 transitions. [2022-09-16 11:42:10,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:10,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1645 transitions. [2022-09-16 11:42:10,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.77777777777777) internal successors, (1645), 9 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,093 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,093 INFO L175 Difference]: Start difference. First operand has 209 places, 203 transitions, 418 flow. Second operand 9 states and 1645 transitions. [2022-09-16 11:42:10,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 202 transitions, 464 flow [2022-09-16 11:42:10,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 202 transitions, 456 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:42:10,098 INFO L231 Difference]: Finished difference. Result has 212 places, 202 transitions, 422 flow [2022-09-16 11:42:10,098 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=422, PETRI_PLACES=212, PETRI_TRANSITIONS=202} [2022-09-16 11:42:10,099 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-09-16 11:42:10,099 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 202 transitions, 422 flow [2022-09-16 11:42:10,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,100 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:10,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:42:10,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:10,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1172873694, now seen corresponding path program 1 times [2022-09-16 11:42:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397699291] [2022-09-16 11:42:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:10,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397699291] [2022-09-16 11:42:10,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397699291] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:42:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534013756] [2022-09-16 11:42:10,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:42:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:42:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:42:10,211 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-09-16 11:42:10,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 202 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-09-16 11:42:10,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:10,288 INFO L130 PetriNetUnfolder]: 3/201 cut-off events. [2022-09-16 11:42:10,288 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:42:10,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 201 events. 3/201 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 176. Up to 10 conditions per place. [2022-09-16 11:42:10,289 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 24/201 dead transitions. [2022-09-16 11:42:10,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 201 transitions, 456 flow [2022-09-16 11:42:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:42:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:42:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1135 transitions. [2022-09-16 11:42:10,293 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8444940476190477 [2022-09-16 11:42:10,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1135 transitions. [2022-09-16 11:42:10,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1135 transitions. [2022-09-16 11:42:10,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:10,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1135 transitions. [2022-09-16 11:42:10,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,302 INFO L175 Difference]: Start difference. First operand has 212 places, 202 transitions, 422 flow. Second operand 6 states and 1135 transitions. [2022-09-16 11:42:10,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 201 transitions, 456 flow [2022-09-16 11:42:10,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 201 transitions, 443 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-09-16 11:42:10,305 INFO L231 Difference]: Finished difference. Result has 209 places, 177 transitions, 367 flow [2022-09-16 11:42:10,306 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=209, PETRI_TRANSITIONS=177} [2022-09-16 11:42:10,324 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-09-16 11:42:10,324 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 177 transitions, 367 flow [2022-09-16 11:42:10,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,325 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:10,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:42:10,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:10,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1358914383, now seen corresponding path program 1 times [2022-09-16 11:42:10,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507063236] [2022-09-16 11:42:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:10,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507063236] [2022-09-16 11:42:10,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507063236] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:42:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707122096] [2022-09-16 11:42:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:42:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:42:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:42:10,399 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-09-16 11:42:10,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 177 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-09-16 11:42:10,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:10,444 INFO L130 PetriNetUnfolder]: 2/175 cut-off events. [2022-09-16 11:42:10,444 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:42:10,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 175 events. 2/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 152. Up to 14 conditions per place. [2022-09-16 11:42:10,446 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 15 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-09-16 11:42:10,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 175 transitions, 397 flow [2022-09-16 11:42:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:42:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:42:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 791 transitions. [2022-09-16 11:42:10,450 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2022-09-16 11:42:10,450 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 791 transitions. [2022-09-16 11:42:10,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 791 transitions. [2022-09-16 11:42:10,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:10,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 791 transitions. [2022-09-16 11:42:10,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,454 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,454 INFO L175 Difference]: Start difference. First operand has 209 places, 177 transitions, 367 flow. Second operand 4 states and 791 transitions. [2022-09-16 11:42:10,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 175 transitions, 397 flow [2022-09-16 11:42:10,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:42:10,458 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 360 flow [2022-09-16 11:42:10,458 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-09-16 11:42:10,459 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -31 predicate places. [2022-09-16 11:42:10,459 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 360 flow [2022-09-16 11:42:10,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,460 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:10,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:42:10,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,460 INFO L85 PathProgramCache]: Analyzing trace with hash 823327677, now seen corresponding path program 1 times [2022-09-16 11:42:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224860415] [2022-09-16 11:42:10,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:10,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224860415] [2022-09-16 11:42:10,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224860415] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:42:10,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108850767] [2022-09-16 11:42:10,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:42:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:42:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:42:10,518 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-09-16 11:42:10,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-09-16 11:42:10,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:10,562 INFO L130 PetriNetUnfolder]: 2/173 cut-off events. [2022-09-16 11:42:10,562 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:42:10,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 173 events. 2/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 149 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 148. Up to 12 conditions per place. [2022-09-16 11:42:10,564 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 13 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-09-16 11:42:10,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 173 transitions, 386 flow [2022-09-16 11:42:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:42:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:42:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 789 transitions. [2022-09-16 11:42:10,566 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8805803571428571 [2022-09-16 11:42:10,566 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 789 transitions. [2022-09-16 11:42:10,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 789 transitions. [2022-09-16 11:42:10,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:10,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 789 transitions. [2022-09-16 11:42:10,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,570 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,570 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 360 flow. Second operand 4 states and 789 transitions. [2022-09-16 11:42:10,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 173 transitions, 386 flow [2022-09-16 11:42:10,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 173 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:10,574 INFO L231 Difference]: Finished difference. Result has 182 places, 173 transitions, 357 flow [2022-09-16 11:42:10,574 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=182, PETRI_TRANSITIONS=173} [2022-09-16 11:42:10,575 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -32 predicate places. [2022-09-16 11:42:10,575 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 173 transitions, 357 flow [2022-09-16 11:42:10,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,576 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 1, 1] [2022-09-16 11:42:10,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:42:10,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash -12508128, now seen corresponding path program 1 times [2022-09-16 11:42:10,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592850453] [2022-09-16 11:42:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:10,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592850453] [2022-09-16 11:42:10,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592850453] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:42:10,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786589696] [2022-09-16 11:42:10,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:42:10,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:42:10,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:42:10,626 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-09-16 11:42:10,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 173 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-09-16 11:42:10,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:10,690 INFO L130 PetriNetUnfolder]: 1/172 cut-off events. [2022-09-16 11:42:10,690 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:42:10,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 172 events. 1/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 151. Up to 11 conditions per place. [2022-09-16 11:42:10,692 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/172 dead transitions. [2022-09-16 11:42:10,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 172 transitions, 391 flow [2022-09-16 11:42:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:42:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:42:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-09-16 11:42:10,694 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-09-16 11:42:10,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-09-16 11:42:10,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-09-16 11:42:10,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:10,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-09-16 11:42:10,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,702 INFO L175 Difference]: Start difference. First operand has 182 places, 173 transitions, 357 flow. Second operand 5 states and 964 transitions. [2022-09-16 11:42:10,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 172 transitions, 391 flow [2022-09-16 11:42:10,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 172 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:10,705 INFO L231 Difference]: Finished difference. Result has 184 places, 172 transitions, 360 flow [2022-09-16 11:42:10,705 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=360, PETRI_PLACES=184, PETRI_TRANSITIONS=172} [2022-09-16 11:42:10,706 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -30 predicate places. [2022-09-16 11:42:10,707 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 172 transitions, 360 flow [2022-09-16 11:42:10,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:10,708 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1] [2022-09-16 11:42:10,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:42:10,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:10,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 806075631, now seen corresponding path program 1 times [2022-09-16 11:42:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:10,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657450440] [2022-09-16 11:42:10,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:10,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:10,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657450440] [2022-09-16 11:42:10,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657450440] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:10,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:10,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:42:10,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190256276] [2022-09-16 11:42:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:10,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:42:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:42:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:42:10,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-09-16 11:42:10,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 172 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:10,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:10,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-09-16 11:42:10,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:11,054 INFO L130 PetriNetUnfolder]: 20/541 cut-off events. [2022-09-16 11:42:11,054 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:42:11,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 541 events. 20/541 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2501 event pairs, 0 based on Foata normal form. 0/524 useless extension candidates. Maximal degree in co-relation 612. Up to 24 conditions per place. [2022-09-16 11:42:11,057 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 49 selfloop transitions, 13 changer transitions 0/211 dead transitions. [2022-09-16 11:42:11,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 582 flow [2022-09-16 11:42:11,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:42:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-16 11:42:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2077 transitions. [2022-09-16 11:42:11,062 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8429383116883117 [2022-09-16 11:42:11,062 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2077 transitions. [2022-09-16 11:42:11,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2077 transitions. [2022-09-16 11:42:11,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:11,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2077 transitions. [2022-09-16 11:42:11,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.8181818181818) internal successors, (2077), 11 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,074 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,074 INFO L175 Difference]: Start difference. First operand has 184 places, 172 transitions, 360 flow. Second operand 11 states and 2077 transitions. [2022-09-16 11:42:11,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 211 transitions, 582 flow [2022-09-16 11:42:11,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 211 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:42:11,078 INFO L231 Difference]: Finished difference. Result has 193 places, 183 transitions, 423 flow [2022-09-16 11:42:11,079 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=423, PETRI_PLACES=193, PETRI_TRANSITIONS=183} [2022-09-16 11:42:11,079 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -21 predicate places. [2022-09-16 11:42:11,080 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 183 transitions, 423 flow [2022-09-16 11:42:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:11,080 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:11,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:42:11,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:11,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash -781458596, now seen corresponding path program 1 times [2022-09-16 11:42:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:11,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011563785] [2022-09-16 11:42:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:11,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:11,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:11,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011563785] [2022-09-16 11:42:11,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011563785] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:11,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:11,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:42:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732076332] [2022-09-16 11:42:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:11,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:42:11,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:11,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:42:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:42:11,181 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-09-16 11:42:11,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 183 transitions, 423 flow. Second operand has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:11,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-09-16 11:42:11,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:11,373 INFO L130 PetriNetUnfolder]: 19/538 cut-off events. [2022-09-16 11:42:11,374 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-09-16 11:42:11,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 538 events. 19/538 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2481 event pairs, 0 based on Foata normal form. 2/524 useless extension candidates. Maximal degree in co-relation 638. Up to 24 conditions per place. [2022-09-16 11:42:11,377 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 23 selfloop transitions, 2 changer transitions 36/210 dead transitions. [2022-09-16 11:42:11,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 210 transitions, 603 flow [2022-09-16 11:42:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:42:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-16 11:42:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2075 transitions. [2022-09-16 11:42:11,382 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8421266233766234 [2022-09-16 11:42:11,382 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2075 transitions. [2022-09-16 11:42:11,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2075 transitions. [2022-09-16 11:42:11,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:11,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2075 transitions. [2022-09-16 11:42:11,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.63636363636363) internal successors, (2075), 11 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,405 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,405 INFO L175 Difference]: Start difference. First operand has 193 places, 183 transitions, 423 flow. Second operand 11 states and 2075 transitions. [2022-09-16 11:42:11,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 210 transitions, 603 flow [2022-09-16 11:42:11,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 210 transitions, 603 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-09-16 11:42:11,410 INFO L231 Difference]: Finished difference. Result has 207 places, 172 transitions, 382 flow [2022-09-16 11:42:11,410 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=382, PETRI_PLACES=207, PETRI_TRANSITIONS=172} [2022-09-16 11:42:11,411 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -7 predicate places. [2022-09-16 11:42:11,411 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 172 transitions, 382 flow [2022-09-16 11:42:11,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:11,412 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:11,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:42:11,412 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:11,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1252523503, now seen corresponding path program 1 times [2022-09-16 11:42:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:11,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086765299] [2022-09-16 11:42:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:11,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:11,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:11,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086765299] [2022-09-16 11:42:11,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086765299] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:11,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:11,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:42:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453676023] [2022-09-16 11:42:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:11,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:42:11,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:42:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:42:11,522 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-09-16 11:42:11,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 172 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:11,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-09-16 11:42:11,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:11,645 INFO L130 PetriNetUnfolder]: 22/485 cut-off events. [2022-09-16 11:42:11,645 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-09-16 11:42:11,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 485 events. 22/485 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1574 event pairs, 6 based on Foata normal form. 6/481 useless extension candidates. Maximal degree in co-relation 615. Up to 31 conditions per place. [2022-09-16 11:42:11,648 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 23 selfloop transitions, 8 changer transitions 1/179 dead transitions. [2022-09-16 11:42:11,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 179 transitions, 460 flow [2022-09-16 11:42:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:42:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:42:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 970 transitions. [2022-09-16 11:42:11,651 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8660714285714286 [2022-09-16 11:42:11,651 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 970 transitions. [2022-09-16 11:42:11,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 970 transitions. [2022-09-16 11:42:11,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:11,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 970 transitions. [2022-09-16 11:42:11,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,656 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,656 INFO L175 Difference]: Start difference. First operand has 207 places, 172 transitions, 382 flow. Second operand 5 states and 970 transitions. [2022-09-16 11:42:11,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 179 transitions, 460 flow [2022-09-16 11:42:11,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 179 transitions, 434 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-09-16 11:42:11,663 INFO L231 Difference]: Finished difference. Result has 186 places, 173 transitions, 382 flow [2022-09-16 11:42:11,663 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=186, PETRI_TRANSITIONS=173} [2022-09-16 11:42:11,664 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -28 predicate places. [2022-09-16 11:42:11,664 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 173 transitions, 382 flow [2022-09-16 11:42:11,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:11,665 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:11,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 11:42:11,665 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:11,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash 743230408, now seen corresponding path program 1 times [2022-09-16 11:42:11,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:11,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988577931] [2022-09-16 11:42:11,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:11,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:11,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988577931] [2022-09-16 11:42:11,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988577931] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:11,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:11,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:42:11,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739982433] [2022-09-16 11:42:11,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:11,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:42:11,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:11,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:42:11,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:42:11,799 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-09-16 11:42:11,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 173 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:11,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-09-16 11:42:11,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:11,898 INFO L130 PetriNetUnfolder]: 17/366 cut-off events. [2022-09-16 11:42:11,898 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-16 11:42:11,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 366 events. 17/366 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 851 event pairs, 6 based on Foata normal form. 2/357 useless extension candidates. Maximal degree in co-relation 415. Up to 32 conditions per place. [2022-09-16 11:42:11,900 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 24 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2022-09-16 11:42:11,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 178 transitions, 460 flow [2022-09-16 11:42:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:42:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:42:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2022-09-16 11:42:11,902 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8625 [2022-09-16 11:42:11,903 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2022-09-16 11:42:11,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2022-09-16 11:42:11,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:11,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2022-09-16 11:42:11,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,907 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,907 INFO L175 Difference]: Start difference. First operand has 186 places, 173 transitions, 382 flow. Second operand 5 states and 966 transitions. [2022-09-16 11:42:11,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 178 transitions, 460 flow [2022-09-16 11:42:11,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 178 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:11,911 INFO L231 Difference]: Finished difference. Result has 189 places, 175 transitions, 409 flow [2022-09-16 11:42:11,911 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=409, PETRI_PLACES=189, PETRI_TRANSITIONS=175} [2022-09-16 11:42:11,912 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -25 predicate places. [2022-09-16 11:42:11,912 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 175 transitions, 409 flow [2022-09-16 11:42:11,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:11,913 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1] [2022-09-16 11:42:11,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:42:11,913 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1904270704, now seen corresponding path program 1 times [2022-09-16 11:42:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:11,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152123505] [2022-09-16 11:42:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:11,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:11,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152123505] [2022-09-16 11:42:11,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152123505] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:11,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:11,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:42:11,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621788666] [2022-09-16 11:42:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:11,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:42:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:11,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:42:11,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:42:11,993 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-09-16 11:42:11,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 175 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:11,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:11,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-09-16 11:42:11,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:12,077 INFO L130 PetriNetUnfolder]: 4/266 cut-off events. [2022-09-16 11:42:12,077 INFO L131 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2022-09-16 11:42:12,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 266 events. 4/266 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 404 event pairs, 1 based on Foata normal form. 1/262 useless extension candidates. Maximal degree in co-relation 313. Up to 26 conditions per place. [2022-09-16 11:42:12,078 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 20 selfloop transitions, 4 changer transitions 2/174 dead transitions. [2022-09-16 11:42:12,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 174 transitions, 455 flow [2022-09-16 11:42:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:42:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:42:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-09-16 11:42:12,081 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8221726190476191 [2022-09-16 11:42:12,081 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-09-16 11:42:12,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-09-16 11:42:12,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:12,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-09-16 11:42:12,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,086 INFO L175 Difference]: Start difference. First operand has 189 places, 175 transitions, 409 flow. Second operand 6 states and 1105 transitions. [2022-09-16 11:42:12,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 174 transitions, 455 flow [2022-09-16 11:42:12,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 174 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:42:12,090 INFO L231 Difference]: Finished difference. Result has 191 places, 172 transitions, 408 flow [2022-09-16 11:42:12,090 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=191, PETRI_TRANSITIONS=172} [2022-09-16 11:42:12,091 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -23 predicate places. [2022-09-16 11:42:12,091 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 172 transitions, 408 flow [2022-09-16 11:42:12,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:42:12,091 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2022-09-16 11:42:12,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 11:42:12,092 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:42:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:42:12,092 INFO L85 PathProgramCache]: Analyzing trace with hash -856761779, now seen corresponding path program 1 times [2022-09-16 11:42:12,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:42:12,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561846903] [2022-09-16 11:42:12,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:42:12,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:42:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:42:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:42:12,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:42:12,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561846903] [2022-09-16 11:42:12,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561846903] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:42:12,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:42:12,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 11:42:12,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743982247] [2022-09-16 11:42:12,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:42:12,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:42:12,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:42:12,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:42:12,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:42:12,209 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 224 [2022-09-16 11:42:12,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 172 transitions, 408 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:42:12,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 224 [2022-09-16 11:42:12,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:42:12,331 INFO L130 PetriNetUnfolder]: 10/301 cut-off events. [2022-09-16 11:42:12,331 INFO L131 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2022-09-16 11:42:12,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 301 events. 10/301 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 565 event pairs, 7 based on Foata normal form. 3/297 useless extension candidates. Maximal degree in co-relation 378. Up to 19 conditions per place. [2022-09-16 11:42:12,332 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 0 selfloop transitions, 0 changer transitions 171/171 dead transitions. [2022-09-16 11:42:12,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 171 transitions, 464 flow [2022-09-16 11:42:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:42:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:42:12,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1587 transitions. [2022-09-16 11:42:12,337 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7872023809523809 [2022-09-16 11:42:12,337 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1587 transitions. [2022-09-16 11:42:12,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1587 transitions. [2022-09-16 11:42:12,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:42:12,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1587 transitions. [2022-09-16 11:42:12,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.33333333333334) internal successors, (1587), 9 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,344 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,344 INFO L175 Difference]: Start difference. First operand has 191 places, 172 transitions, 408 flow. Second operand 9 states and 1587 transitions. [2022-09-16 11:42:12,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 171 transitions, 464 flow [2022-09-16 11:42:12,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 171 transitions, 457 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:42:12,348 INFO L231 Difference]: Finished difference. Result has 192 places, 0 transitions, 0 flow [2022-09-16 11:42:12,348 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=192, PETRI_TRANSITIONS=0} [2022-09-16 11:42:12,348 INFO L287 CegarLoopForPetriNet]: 214 programPoint places, -22 predicate places. [2022-09-16 11:42:12,348 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 0 transitions, 0 flow [2022-09-16 11:42:12,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:42:12,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2022-09-16 11:42:12,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-09-16 11:42:12,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-09-16 11:42:12,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-09-16 11:42:12,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-09-16 11:42:12,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-09-16 11:42:12,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-09-16 11:42:12,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-09-16 11:42:12,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-09-16 11:42:12,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-09-16 11:42:12,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-09-16 11:42:12,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-09-16 11:42:12,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 11:42:12,358 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:42:12,363 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:42:12,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:42:12,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:42:12 BasicIcfg [2022-09-16 11:42:12,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:42:12,370 INFO L158 Benchmark]: Toolchain (without parser) took 5394.36ms. Allocated memory was 167.8MB in the beginning and 278.9MB in the end (delta: 111.1MB). Free memory was 144.5MB in the beginning and 120.8MB in the end (delta: 23.7MB). Peak memory consumption was 134.6MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,370 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 128.4MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:42:12,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.06ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 144.5MB in the beginning and 187.2MB in the end (delta: -42.7MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.70ms. Allocated memory is still 224.4MB. Free memory was 187.2MB in the beginning and 184.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,371 INFO L158 Benchmark]: Boogie Preprocessor took 25.75ms. Allocated memory is still 224.4MB. Free memory was 184.5MB in the beginning and 183.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,371 INFO L158 Benchmark]: RCFGBuilder took 629.55ms. Allocated memory is still 224.4MB. Free memory was 183.1MB in the beginning and 164.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,371 INFO L158 Benchmark]: TraceAbstraction took 4169.51ms. Allocated memory was 224.4MB in the beginning and 278.9MB in the end (delta: 54.5MB). Free memory was 163.9MB in the beginning and 120.8MB in the end (delta: 43.1MB). Peak memory consumption was 98.7MB. Max. memory is 8.0GB. [2022-09-16 11:42:12,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 128.4MB in the end (delta: 133.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.06ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 144.5MB in the beginning and 187.2MB in the end (delta: -42.7MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.70ms. Allocated memory is still 224.4MB. Free memory was 187.2MB in the beginning and 184.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.75ms. Allocated memory is still 224.4MB. Free memory was 184.5MB in the beginning and 183.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 629.55ms. Allocated memory is still 224.4MB. Free memory was 183.1MB in the beginning and 164.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4169.51ms. Allocated memory was 224.4MB in the beginning and 278.9MB in the end (delta: 54.5MB). Free memory was 163.9MB in the beginning and 120.8MB in the end (delta: 43.1MB). Peak memory consumption was 98.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 309 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 632 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 632 mSDsluCounter, 325 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 634 IncrementalHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 115 mSDtfsCounter, 634 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=2, InterpolantAutomatonStates: 93, 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, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1490 NumberOfCodeBlocks, 1490 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1475 ConstructedInterpolants, 0 QuantifiedInterpolants, 3893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:42:12,411 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...