/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/mix014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:31:57,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:31:57,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:31:57,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:31:57,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:31:57,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:31:57,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:31:57,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:31:57,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:31:57,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:31:57,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:31:57,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:31:57,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:31:57,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:31:57,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:31:57,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:31:57,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:31:57,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:31:57,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:31:57,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:31:57,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:31:57,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:31:57,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:31:57,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:31:57,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:31:57,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:31:57,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:31:57,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:31:57,714 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 11:31:57,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:31:57,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:31:57,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:31:57,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:31:57,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:31:57,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:31:57,752 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:31:57,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:31:57,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:31:57,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:31:57,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:31:57,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:31:57,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:31:57,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:31:57,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:31:57,754 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:31:57,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:31:57,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:31:57,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:31:57,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:31:57,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:31:57,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:31:57,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:31:57,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:31:57,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:31:57,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:31:57,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:31:57,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:31:57,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:31:57,757 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:31:57,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:31:57,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:31:57,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:31:58,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:31:58,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:31:58,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:31:58,008 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:31:58,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2022-09-16 11:31:58,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d0d0c8c/8cc78aa8be834d888398c3f5c211c521/FLAG4417a2d20 [2022-09-16 11:31:58,566 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:31:58,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014_tso.oepc.i [2022-09-16 11:31:58,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d0d0c8c/8cc78aa8be834d888398c3f5c211c521/FLAG4417a2d20 [2022-09-16 11:31:59,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d0d0c8c/8cc78aa8be834d888398c3f5c211c521 [2022-09-16 11:31:59,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:31:59,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:31:59,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:31:59,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:31:59,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:31:59,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a5103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59, skipping insertion in model container [2022-09-16 11:31:59,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:31:59,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:31:59,305 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/mix014_tso.oepc.i[949,962] [2022-09-16 11:31:59,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:31:59,491 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:31:59,502 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/mix014_tso.oepc.i[949,962] [2022-09-16 11:31:59,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:31:59,590 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:31:59,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59 WrapperNode [2022-09-16 11:31:59,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:31:59,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:31:59,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:31:59,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:31:59,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,704 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 633 [2022-09-16 11:31:59,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:31:59,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:31:59,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:31:59,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:31:59,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:31:59,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:31:59,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:31:59,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:31:59,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (1/1) ... [2022-09-16 11:31:59,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:31:59,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:31:59,810 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 11:31:59,812 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 11:31:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:31:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:31:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:31:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:31:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:31:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:31:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:31:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:31:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:31:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:31:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:31:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:31:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:31:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:31:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:31:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:31:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:31:59,851 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 11:32:00,058 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:00,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:00,970 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:01,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:01,743 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:01,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:01 BoogieIcfgContainer [2022-09-16 11:32:01,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:01,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:01,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:01,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:01,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:31:59" (1/3) ... [2022-09-16 11:32:01,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1be685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:01, skipping insertion in model container [2022-09-16 11:32:01,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:31:59" (2/3) ... [2022-09-16 11:32:01,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1be685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:01, skipping insertion in model container [2022-09-16 11:32:01,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:01" (3/3) ... [2022-09-16 11:32:01,755 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_tso.oepc.i [2022-09-16 11:32:01,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:01,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:32:01,772 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:01,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:01,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 164 transitions, 348 flow [2022-09-16 11:32:01,996 INFO L130 PetriNetUnfolder]: 2/160 cut-off events. [2022-09-16 11:32:01,997 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:02,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 160 events. 2/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-09-16 11:32:02,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 164 transitions, 348 flow [2022-09-16 11:32:02,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 160 transitions, 332 flow [2022-09-16 11:32:02,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:02,020 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;@4efa4585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:02,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:32:02,071 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-09-16 11:32:02,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:02,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:02,073 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] [2022-09-16 11:32:02,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:02,078 INFO L85 PathProgramCache]: Analyzing trace with hash 680358571, now seen corresponding path program 1 times [2022-09-16 11:32:02,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:02,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281223079] [2022-09-16 11:32:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:02,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:02,411 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 11:32:02,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:02,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281223079] [2022-09-16 11:32:02,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281223079] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:02,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:02,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678053391] [2022-09-16 11:32:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:02,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:02,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:02,457 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2022-09-16 11:32:02,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 160 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 11:32:02,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:02,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2022-09-16 11:32:02,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:05,513 INFO L130 PetriNetUnfolder]: 7486/13820 cut-off events. [2022-09-16 11:32:05,513 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-09-16 11:32:05,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24580 conditions, 13820 events. 7486/13820 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 120038 event pairs, 2057 based on Foata normal form. 292/10522 useless extension candidates. Maximal degree in co-relation 24503. Up to 9554 conditions per place. [2022-09-16 11:32:05,676 INFO L137 encePairwiseOnDemand]: 149/164 looper letters, 41 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2022-09-16 11:32:05,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 175 transitions, 463 flow [2022-09-16 11:32:05,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2022-09-16 11:32:05,690 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9288617886178862 [2022-09-16 11:32:05,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions. [2022-09-16 11:32:05,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions. [2022-09-16 11:32:05,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:05,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions. [2022-09-16 11:32:05,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 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 11:32:05,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 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 11:32:05,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 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 11:32:05,712 INFO L175 Difference]: Start difference. First operand has 171 places, 160 transitions, 332 flow. Second operand 3 states and 457 transitions. [2022-09-16 11:32:05,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 175 transitions, 463 flow [2022-09-16 11:32:05,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 175 transitions, 456 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:05,723 INFO L231 Difference]: Finished difference. Result has 169 places, 161 transitions, 369 flow [2022-09-16 11:32:05,725 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=169, PETRI_TRANSITIONS=161} [2022-09-16 11:32:05,729 INFO L287 CegarLoopForPetriNet]: 171 programPoint places, -2 predicate places. [2022-09-16 11:32:05,729 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 161 transitions, 369 flow [2022-09-16 11:32:05,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 11:32:05,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:05,730 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] [2022-09-16 11:32:05,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:05,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -779512577, now seen corresponding path program 1 times [2022-09-16 11:32:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:05,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77180992] [2022-09-16 11:32:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:05,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:05,912 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 11:32:05,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:05,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77180992] [2022-09-16 11:32:05,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77180992] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:05,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:05,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:05,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52148019] [2022-09-16 11:32:05,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:05,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:05,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:05,917 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2022-09-16 11:32:05,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 161 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 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 11:32:05,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:05,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2022-09-16 11:32:05,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:07,902 INFO L130 PetriNetUnfolder]: 4942/10390 cut-off events. [2022-09-16 11:32:07,902 INFO L131 PetriNetUnfolder]: For 342/342 co-relation queries the response was YES. [2022-09-16 11:32:07,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21032 conditions, 10390 events. 4942/10390 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 96014 event pairs, 857 based on Foata normal form. 0/8576 useless extension candidates. Maximal degree in co-relation 20956. Up to 3906 conditions per place. [2022-09-16 11:32:08,034 INFO L137 encePairwiseOnDemand]: 151/164 looper letters, 54 selfloop transitions, 13 changer transitions 0/196 dead transitions. [2022-09-16 11:32:08,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 196 transitions, 599 flow [2022-09-16 11:32:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 603 transitions. [2022-09-16 11:32:08,039 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9192073170731707 [2022-09-16 11:32:08,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 603 transitions. [2022-09-16 11:32:08,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 603 transitions. [2022-09-16 11:32:08,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:08,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 603 transitions. [2022-09-16 11:32:08,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 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 11:32:08,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 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 11:32:08,044 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 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 11:32:08,045 INFO L175 Difference]: Start difference. First operand has 169 places, 161 transitions, 369 flow. Second operand 4 states and 603 transitions. [2022-09-16 11:32:08,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 196 transitions, 599 flow [2022-09-16 11:32:08,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 196 transitions, 594 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:08,053 INFO L231 Difference]: Finished difference. Result has 173 places, 169 transitions, 467 flow [2022-09-16 11:32:08,054 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=467, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2022-09-16 11:32:08,054 INFO L287 CegarLoopForPetriNet]: 171 programPoint places, 2 predicate places. [2022-09-16 11:32:08,055 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 467 flow [2022-09-16 11:32:08,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 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 11:32:08,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:08,056 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] [2022-09-16 11:32:08,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:08,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash -779512576, now seen corresponding path program 1 times [2022-09-16 11:32:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:08,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830588077] [2022-09-16 11:32:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:08,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:08,252 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 11:32:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:08,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830588077] [2022-09-16 11:32:08,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830588077] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:08,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:08,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068366236] [2022-09-16 11:32:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:08,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:08,256 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2022-09-16 11:32:08,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 467 flow. Second operand has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 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 11:32:08,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:08,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2022-09-16 11:32:08,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:10,044 INFO L130 PetriNetUnfolder]: 2805/9905 cut-off events. [2022-09-16 11:32:10,045 INFO L131 PetriNetUnfolder]: For 5706/5706 co-relation queries the response was YES. [2022-09-16 11:32:10,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17005 conditions, 9905 events. 2805/9905 cut-off events. For 5706/5706 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 108880 event pairs, 1546 based on Foata normal form. 641/9823 useless extension candidates. Maximal degree in co-relation 16926. Up to 3061 conditions per place. [2022-09-16 11:32:10,139 INFO L137 encePairwiseOnDemand]: 155/164 looper letters, 41 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2022-09-16 11:32:10,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 175 transitions, 537 flow [2022-09-16 11:32:10,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:10,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-09-16 11:32:10,142 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8810975609756098 [2022-09-16 11:32:10,142 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-09-16 11:32:10,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-09-16 11:32:10,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:10,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-09-16 11:32:10,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 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 11:32:10,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 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 11:32:10,146 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 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 11:32:10,146 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 467 flow. Second operand 4 states and 578 transitions. [2022-09-16 11:32:10,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 175 transitions, 537 flow [2022-09-16 11:32:10,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 175 transitions, 514 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:32:10,180 INFO L231 Difference]: Finished difference. Result has 169 places, 161 transitions, 398 flow [2022-09-16 11:32:10,180 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=398, PETRI_PLACES=169, PETRI_TRANSITIONS=161} [2022-09-16 11:32:10,183 INFO L287 CegarLoopForPetriNet]: 171 programPoint places, -2 predicate places. [2022-09-16 11:32:10,183 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 161 transitions, 398 flow [2022-09-16 11:32:10,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 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 11:32:10,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:10,184 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] [2022-09-16 11:32:10,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:10,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:10,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1175591703, now seen corresponding path program 1 times [2022-09-16 11:32:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:10,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443247568] [2022-09-16 11:32:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:10,376 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 11:32:10,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:10,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443247568] [2022-09-16 11:32:10,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443247568] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:10,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:10,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:10,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180792802] [2022-09-16 11:32:10,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:10,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:10,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:10,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:10,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:10,384 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2022-09-16 11:32:10,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 161 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 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 11:32:10,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:10,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2022-09-16 11:32:10,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:11,617 INFO L130 PetriNetUnfolder]: 2508/8204 cut-off events. [2022-09-16 11:32:11,617 INFO L131 PetriNetUnfolder]: For 2779/2779 co-relation queries the response was YES. [2022-09-16 11:32:11,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13890 conditions, 8204 events. 2508/8204 cut-off events. For 2779/2779 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 85276 event pairs, 887 based on Foata normal form. 0/7824 useless extension candidates. Maximal degree in co-relation 13812. Up to 1465 conditions per place. [2022-09-16 11:32:11,692 INFO L137 encePairwiseOnDemand]: 155/164 looper letters, 58 selfloop transitions, 13 changer transitions 4/204 dead transitions. [2022-09-16 11:32:11,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 204 transitions, 662 flow [2022-09-16 11:32:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 744 transitions. [2022-09-16 11:32:11,695 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2022-09-16 11:32:11,696 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 744 transitions. [2022-09-16 11:32:11,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 744 transitions. [2022-09-16 11:32:11,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:11,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 744 transitions. [2022-09-16 11:32:11,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 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 11:32:11,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 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 11:32:11,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 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 11:32:11,700 INFO L175 Difference]: Start difference. First operand has 169 places, 161 transitions, 398 flow. Second operand 5 states and 744 transitions. [2022-09-16 11:32:11,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 204 transitions, 662 flow [2022-09-16 11:32:11,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 204 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:11,706 INFO L231 Difference]: Finished difference. Result has 172 places, 161 transitions, 434 flow [2022-09-16 11:32:11,706 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=434, PETRI_PLACES=172, PETRI_TRANSITIONS=161} [2022-09-16 11:32:11,707 INFO L287 CegarLoopForPetriNet]: 171 programPoint places, 1 predicate places. [2022-09-16 11:32:11,707 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 161 transitions, 434 flow [2022-09-16 11:32:11,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 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 11:32:11,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:11,708 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, 1, 1, 1, 1, 1] [2022-09-16 11:32:11,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:11,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -938901020, now seen corresponding path program 1 times [2022-09-16 11:32:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:11,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966112331] [2022-09-16 11:32:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:11,858 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 11:32:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:11,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966112331] [2022-09-16 11:32:11,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966112331] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:11,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:11,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:32:11,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801492528] [2022-09-16 11:32:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:11,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:32:11,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:11,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:32:11,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:32:11,861 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2022-09-16 11:32:11,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 161 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 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 11:32:11,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:11,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2022-09-16 11:32:11,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:13,100 INFO L130 PetriNetUnfolder]: 2481/7384 cut-off events. [2022-09-16 11:32:13,100 INFO L131 PetriNetUnfolder]: For 4145/4145 co-relation queries the response was YES. [2022-09-16 11:32:13,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14091 conditions, 7384 events. 2481/7384 cut-off events. For 4145/4145 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 73293 event pairs, 887 based on Foata normal form. 16/7092 useless extension candidates. Maximal degree in co-relation 14012. Up to 1465 conditions per place. [2022-09-16 11:32:13,156 INFO L137 encePairwiseOnDemand]: 155/164 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2022-09-16 11:32:13,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 196 transitions, 626 flow [2022-09-16 11:32:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:32:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:32:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2022-09-16 11:32:13,159 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.883130081300813 [2022-09-16 11:32:13,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 869 transitions. [2022-09-16 11:32:13,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 869 transitions. [2022-09-16 11:32:13,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:13,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 869 transitions. [2022-09-16 11:32:13,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 0 states have call successors, (0), 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 11:32:13,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 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 11:32:13,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 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 11:32:13,166 INFO L175 Difference]: Start difference. First operand has 172 places, 161 transitions, 434 flow. Second operand 6 states and 869 transitions. [2022-09-16 11:32:13,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 196 transitions, 626 flow [2022-09-16 11:32:13,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 196 transitions, 571 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:32:13,191 INFO L231 Difference]: Finished difference. Result has 167 places, 0 transitions, 0 flow [2022-09-16 11:32:13,192 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=167, PETRI_TRANSITIONS=0} [2022-09-16 11:32:13,194 INFO L287 CegarLoopForPetriNet]: 171 programPoint places, -4 predicate places. [2022-09-16 11:32:13,194 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 0 transitions, 0 flow [2022-09-16 11:32:13,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 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 11:32:13,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:32:13,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:32:13,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:32:13,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:32:13,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:32:13,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:32:13,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:32:13,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:32:13,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:32:13,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:32:13,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:32:13,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:32:13,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:32:13,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:32:13,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:32:13,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:32:13,207 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:32:13,214 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:13,214 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:13,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:13 BasicIcfg [2022-09-16 11:32:13,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:13,221 INFO L158 Benchmark]: Toolchain (without parser) took 14154.72ms. Allocated memory was 191.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 136.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 762.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,221 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 191.9MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:13,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.74ms. Allocated memory is still 191.9MB. Free memory was 135.9MB in the beginning and 148.6MB in the end (delta: -12.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.98ms. Allocated memory is still 191.9MB. Free memory was 148.6MB in the beginning and 144.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,224 INFO L158 Benchmark]: Boogie Preprocessor took 54.15ms. Allocated memory is still 191.9MB. Free memory was 144.2MB in the beginning and 140.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,225 INFO L158 Benchmark]: RCFGBuilder took 1985.96ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 140.6MB in the beginning and 111.0MB in the end (delta: 29.6MB). Peak memory consumption was 111.9MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,225 INFO L158 Benchmark]: TraceAbstraction took 11471.32ms. Allocated memory was 230.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 110.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 696.3MB. Max. memory is 8.0GB. [2022-09-16 11:32:13,226 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 191.9MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 522.74ms. Allocated memory is still 191.9MB. Free memory was 135.9MB in the beginning and 148.6MB in the end (delta: -12.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 111.98ms. Allocated memory is still 191.9MB. Free memory was 148.6MB in the beginning and 144.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.15ms. Allocated memory is still 191.9MB. Free memory was 144.2MB in the beginning and 140.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1985.96ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 140.6MB in the beginning and 111.0MB in the end (delta: 29.6MB). Peak memory consumption was 111.9MB. Max. memory is 8.0GB. * TraceAbstraction took 11471.32ms. Allocated memory was 230.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 110.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 696.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 907]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 907]: 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 9 procedures, 209 locations, 20 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: 11.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 350 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 350 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=467occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 449 NumberOfCodeBlocks, 449 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 444 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:32:13,264 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...