/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/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:17,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:17,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:17,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:17,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:17,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:17,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:17,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:17,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:17,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:17,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:17,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:17,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:17,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:17,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:17,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:17,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:17,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:17,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:17,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:17,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:17,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:17,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:17,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:17,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:35:17,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:17,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:17,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:17,947 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 11:35:17,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:17,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:17,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:17,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:17,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:17,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:17,984 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:17,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:17,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:17,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:17,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:17,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:17,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:17,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:17,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:17,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:17,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:17,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:17,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:17,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:17,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:17,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:17,988 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:17,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:17,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:18,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:18,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:18,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:18,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:18,279 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:18,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-09-16 11:35:18,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f7d0844/660a337f7ceb416d93fc61814c2eb360/FLAGcb60985b2 [2022-09-16 11:35:18,860 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:18,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-09-16 11:35:18,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f7d0844/660a337f7ceb416d93fc61814c2eb360/FLAGcb60985b2 [2022-09-16 11:35:19,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f7d0844/660a337f7ceb416d93fc61814c2eb360 [2022-09-16 11:35:19,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:19,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:19,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:19,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:19,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:19,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62272e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19, skipping insertion in model container [2022-09-16 11:35:19,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:19,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:19,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i[945,958] [2022-09-16 11:35:19,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:19,780 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:19,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i[945,958] [2022-09-16 11:35:19,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:19,860 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:19,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19 WrapperNode [2022-09-16 11:35:19,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:19,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:19,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:19,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:19,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,923 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-09-16 11:35:19,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:19,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:19,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:19,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:19,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:19,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:19,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:19,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:19,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (1/1) ... [2022-09-16 11:35:19,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:20,009 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 11:35:20,077 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 11:35:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:20,103 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 11:35:20,264 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:20,265 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:20,460 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:20,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:20,495 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:20,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:20 BoogieIcfgContainer [2022-09-16 11:35:20,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:20,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:20,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:20,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:20,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:19" (1/3) ... [2022-09-16 11:35:20,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bb6be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:20, skipping insertion in model container [2022-09-16 11:35:20,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:19" (2/3) ... [2022-09-16 11:35:20,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22bb6be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:20, skipping insertion in model container [2022-09-16 11:35:20,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:20" (3/3) ... [2022-09-16 11:35:20,512 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2022-09-16 11:35:20,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:20,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:35:20,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:20,598 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:20,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 98 transitions, 211 flow [2022-09-16 11:35:20,679 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-09-16 11:35:20,679 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:20,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-09-16 11:35:20,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 98 transitions, 211 flow [2022-09-16 11:35:20,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 95 transitions, 199 flow [2022-09-16 11:35:20,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:20,713 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;@33912c38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:20,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:35:20,734 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-09-16 11:35:20,734 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:20,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:20,736 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] [2022-09-16 11:35:20,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:20,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1681671823, now seen corresponding path program 1 times [2022-09-16 11:35:20,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:20,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569464919] [2022-09-16 11:35:20,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:20,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:21,018 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 11:35:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:21,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569464919] [2022-09-16 11:35:21,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569464919] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:21,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:21,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400208291] [2022-09-16 11:35:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:21,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:21,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:21,068 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 98 [2022-09-16 11:35:21,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 11:35:21,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:21,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 98 [2022-09-16 11:35:21,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:21,242 INFO L130 PetriNetUnfolder]: 104/311 cut-off events. [2022-09-16 11:35:21,243 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:35:21,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 311 events. 104/311 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1404 event pairs, 38 based on Foata normal form. 38/258 useless extension candidates. Maximal degree in co-relation 494. Up to 187 conditions per place. [2022-09-16 11:35:21,252 INFO L137 encePairwiseOnDemand]: 86/98 looper letters, 16 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2022-09-16 11:35:21,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 251 flow [2022-09-16 11:35:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-09-16 11:35:21,274 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2022-09-16 11:35:21,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-09-16 11:35:21,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-09-16 11:35:21,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:21,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-09-16 11:35:21,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 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 11:35:21,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:21,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:21,300 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 199 flow. Second operand 3 states and 273 transitions. [2022-09-16 11:35:21,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 251 flow [2022-09-16 11:35:21,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 98 transitions, 246 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:21,308 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 226 flow [2022-09-16 11:35:21,310 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2022-09-16 11:35:21,316 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, -1 predicate places. [2022-09-16 11:35:21,317 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 226 flow [2022-09-16 11:35:21,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 11:35:21,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:21,318 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] [2022-09-16 11:35:21,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:21,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -274511136, now seen corresponding path program 1 times [2022-09-16 11:35:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:21,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998195706] [2022-09-16 11:35:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:21,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:21,458 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 11:35:21,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:21,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998195706] [2022-09-16 11:35:21,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998195706] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:21,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:21,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:21,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200704826] [2022-09-16 11:35:21,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:21,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:21,467 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 98 [2022-09-16 11:35:21,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:35:21,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:21,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 98 [2022-09-16 11:35:21,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:21,603 INFO L130 PetriNetUnfolder]: 54/235 cut-off events. [2022-09-16 11:35:21,604 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-09-16 11:35:21,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 235 events. 54/235 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 983 event pairs, 6 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 426. Up to 80 conditions per place. [2022-09-16 11:35:21,613 INFO L137 encePairwiseOnDemand]: 88/98 looper letters, 15 selfloop transitions, 10 changer transitions 3/106 dead transitions. [2022-09-16 11:35:21,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 322 flow [2022-09-16 11:35:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 355 transitions. [2022-09-16 11:35:21,616 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9056122448979592 [2022-09-16 11:35:21,616 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 355 transitions. [2022-09-16 11:35:21,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 355 transitions. [2022-09-16 11:35:21,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:21,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 355 transitions. [2022-09-16 11:35:21,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 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 11:35:21,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 11:35:21,619 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 11:35:21,620 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 226 flow. Second operand 4 states and 355 transitions. [2022-09-16 11:35:21,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 322 flow [2022-09-16 11:35:21,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 106 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:21,623 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 282 flow [2022-09-16 11:35:21,624 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2022-09-16 11:35:21,624 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 3 predicate places. [2022-09-16 11:35:21,625 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 282 flow [2022-09-16 11:35:21,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:35:21,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:21,625 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] [2022-09-16 11:35:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:21,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash -482635303, now seen corresponding path program 1 times [2022-09-16 11:35:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:21,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303411600] [2022-09-16 11:35:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:21,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:21,732 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 11:35:21,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:21,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303411600] [2022-09-16 11:35:21,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303411600] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:21,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:21,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610915518] [2022-09-16 11:35:21,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:21,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:21,735 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 98 [2022-09-16 11:35:21,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:35:21,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:21,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 98 [2022-09-16 11:35:21,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:21,803 INFO L130 PetriNetUnfolder]: 20/256 cut-off events. [2022-09-16 11:35:21,806 INFO L131 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2022-09-16 11:35:21,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 256 events. 20/256 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 922 event pairs, 7 based on Foata normal form. 20/265 useless extension candidates. Maximal degree in co-relation 359. Up to 42 conditions per place. [2022-09-16 11:35:21,809 INFO L137 encePairwiseOnDemand]: 91/98 looper letters, 13 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2022-09-16 11:35:21,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 95 transitions, 284 flow [2022-09-16 11:35:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2022-09-16 11:35:21,811 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8775510204081632 [2022-09-16 11:35:21,811 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2022-09-16 11:35:21,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2022-09-16 11:35:21,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:21,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2022-09-16 11:35:21,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 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 11:35:21,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 11:35:21,815 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 11:35:21,815 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 282 flow. Second operand 4 states and 344 transitions. [2022-09-16 11:35:21,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 95 transitions, 284 flow [2022-09-16 11:35:21,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 95 transitions, 266 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:21,819 INFO L231 Difference]: Finished difference. Result has 103 places, 92 transitions, 230 flow [2022-09-16 11:35:21,819 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=103, PETRI_TRANSITIONS=92} [2022-09-16 11:35:21,820 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2022-09-16 11:35:21,820 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 92 transitions, 230 flow [2022-09-16 11:35:21,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:35:21,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:21,821 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] [2022-09-16 11:35:21,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:21,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:21,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1563389929, now seen corresponding path program 1 times [2022-09-16 11:35:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638051606] [2022-09-16 11:35:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:21,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:21,928 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 11:35:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:21,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638051606] [2022-09-16 11:35:21,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638051606] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:21,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:21,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390973282] [2022-09-16 11:35:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:21,932 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 98 [2022-09-16 11:35:21,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 92 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:21,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:21,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 98 [2022-09-16 11:35:21,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:22,014 INFO L130 PetriNetUnfolder]: 17/142 cut-off events. [2022-09-16 11:35:22,014 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-09-16 11:35:22,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 142 events. 17/142 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 332 event pairs, 0 based on Foata normal form. 6/145 useless extension candidates. Maximal degree in co-relation 205. Up to 18 conditions per place. [2022-09-16 11:35:22,016 INFO L137 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2022-09-16 11:35:22,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 260 flow [2022-09-16 11:35:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 424 transitions. [2022-09-16 11:35:22,021 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8653061224489796 [2022-09-16 11:35:22,021 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 424 transitions. [2022-09-16 11:35:22,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 424 transitions. [2022-09-16 11:35:22,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:22,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 424 transitions. [2022-09-16 11:35:22,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:22,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 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 11:35:22,024 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 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 11:35:22,024 INFO L175 Difference]: Start difference. First operand has 103 places, 92 transitions, 230 flow. Second operand 5 states and 424 transitions. [2022-09-16 11:35:22,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 260 flow [2022-09-16 11:35:22,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 94 transitions, 245 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:22,028 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2022-09-16 11:35:22,028 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2022-09-16 11:35:22,030 INFO L287 CegarLoopForPetriNet]: 103 programPoint places, -3 predicate places. [2022-09-16 11:35:22,034 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2022-09-16 11:35:22,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:22,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:35:22,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:35:22,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:35:22,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:35:22,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:35:22,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:35:22,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:35:22,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:35:22,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:35:22,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:35:22,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:35:22,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:35:22,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:35:22,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:35:22,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:35:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:22,042 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:35:22,055 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:22,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:22,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:22 BasicIcfg [2022-09-16 11:35:22,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:22,062 INFO L158 Benchmark]: Toolchain (without parser) took 2699.67ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 153.8MB in the beginning and 202.2MB in the end (delta: -48.4MB). Peak memory consumption was 137.7MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,062 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:22,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.21ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 153.8MB in the beginning and 202.0MB in the end (delta: -48.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.18ms. Allocated memory is still 241.2MB. Free memory was 202.0MB in the beginning and 199.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,068 INFO L158 Benchmark]: Boogie Preprocessor took 43.62ms. Allocated memory is still 241.2MB. Free memory was 199.9MB in the beginning and 198.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,069 INFO L158 Benchmark]: RCFGBuilder took 530.11ms. Allocated memory is still 241.2MB. Free memory was 198.3MB in the beginning and 183.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,074 INFO L158 Benchmark]: TraceAbstraction took 1556.37ms. Allocated memory is still 241.2MB. Free memory was 182.6MB in the beginning and 202.2MB in the end (delta: -19.6MB). Peak memory consumption was 110.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:22,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 499.21ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 153.8MB in the beginning and 202.0MB in the end (delta: -48.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.18ms. Allocated memory is still 241.2MB. Free memory was 202.0MB in the beginning and 199.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.62ms. Allocated memory is still 241.2MB. Free memory was 199.9MB in the beginning and 198.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 530.11ms. Allocated memory is still 241.2MB. Free memory was 198.3MB in the beginning and 183.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1556.37ms. Allocated memory is still 241.2MB. Free memory was 182.6MB in the beginning and 202.2MB in the end (delta: -19.6MB). Peak memory consumption was 110.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 737]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 737]: 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: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 127 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:35:22,113 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...