/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-FA-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/mix030_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:27:44,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:27:44,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:27:44,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 10:27:44,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:27:44,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:27:44,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:27:44,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:27:44,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:27:44,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:27:44,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:27:44,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:27:44,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:27:44,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:27:44,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:27:44,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:27:44,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:27:44,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:27:44,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:27:44,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:27:44,725 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-FA-NoLbe.epf [2022-09-16 10:27:44,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:27:44,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:27:44,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:27:44,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:27:44,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:27:44,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:27:44,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:27:44,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:27:44,751 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:27:44,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:27:44,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:27:44,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:27:44,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:27:44,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:27:44,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:44,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:27:44,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:27:44,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:27:44,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:27:44,755 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:27:44,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:27:44,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:27:44,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:27:44,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:27:44,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:27:44,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:27:44,959 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:27:44,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 10:27:45,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d358505a/88dff7820a884c6588dc3b7680dfbd05/FLAG86a6723b8 [2022-09-16 10:27:45,417 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:27:45,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 10:27:45,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d358505a/88dff7820a884c6588dc3b7680dfbd05/FLAG86a6723b8 [2022-09-16 10:27:45,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d358505a/88dff7820a884c6588dc3b7680dfbd05 [2022-09-16 10:27:45,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:27:45,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:27:45,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:45,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:27:45,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:27:45,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cb27c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45, skipping insertion in model container [2022-09-16 10:27:45,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:27:45,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:27:45,669 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 10:27:45,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:45,823 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:27:45,832 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/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 10:27:45,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:45,891 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:27:45,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45 WrapperNode [2022-09-16 10:27:45,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:45,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:45,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:27:45,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:27:45,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,934 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-09-16 10:27:45,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:45,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:27:45,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:27:45,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:27:45,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:45,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:27:45,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:27:45,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:27:45,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:27:45,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (1/1) ... [2022-09-16 10:27:46,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:46,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:27:46,034 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 10:27:46,036 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 10:27:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:27:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:27:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:27:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:27:46,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:27:46,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:27:46,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:27:46,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:27:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:27:46,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:27:46,064 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 10:27:46,159 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:27:46,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:27:46,561 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:27:46,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:27:46,863 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:27:46,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:46 BoogieIcfgContainer [2022-09-16 10:27:46,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:27:46,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:27:46,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:27:46,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:27:46,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:27:45" (1/3) ... [2022-09-16 10:27:46,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea00df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:46, skipping insertion in model container [2022-09-16 10:27:46,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:45" (2/3) ... [2022-09-16 10:27:46,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea00df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:46, skipping insertion in model container [2022-09-16 10:27:46,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:46" (3/3) ... [2022-09-16 10:27:46,873 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 10:27:46,883 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:27:46,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:27:46,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:27:46,890 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:27:46,958 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:27:46,998 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 153 places, 142 transitions, 304 flow [2022-09-16 10:27:57,269 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 368143 states, 368063 states have (on average 4.615223480762804) internal successors, (1698693), 368142 states have internal predecessors, (1698693), 0 states have call successors, (0), 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 10:27:57,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:27:57,316 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@11b9fa6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:27:57,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:27:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 368143 states, 368063 states have (on average 4.615223480762804) internal successors, (1698693), 368142 states have internal predecessors, (1698693), 0 states have call successors, (0), 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 10:27:58,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:27:58,144 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:27:58,145 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:27:58,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:27:58,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:27:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1637676204, now seen corresponding path program 1 times [2022-09-16 10:27:58,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:27:58,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396448577] [2022-09-16 10:27:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:27:58,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:27:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:27:58,406 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 10:27:58,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:27:58,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396448577] [2022-09-16 10:27:58,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396448577] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:27:58,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:27:58,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:27:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076864436] [2022-09-16 10:27:58,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:27:58,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:27:58,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:27:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:27:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:27:59,166 INFO L87 Difference]: Start difference. First operand has 368143 states, 368063 states have (on average 4.615223480762804) internal successors, (1698693), 368142 states have internal predecessors, (1698693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 10:28:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:05,132 INFO L93 Difference]: Finished difference Result 291708 states and 1302878 transitions. [2022-09-16 10:28:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:28:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-09-16 10:28:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:09,086 INFO L225 Difference]: With dead ends: 291708 [2022-09-16 10:28:09,087 INFO L226 Difference]: Without dead ends: 291708 [2022-09-16 10:28:09,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:28:09,090 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 65 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:28:09,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 189 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:10,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291708 states. [2022-09-16 10:28:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291708 to 291708. [2022-09-16 10:28:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291708 states, 291516 states have (on average 4.469319008219103) internal successors, (1302878), 291707 states have internal predecessors, (1302878), 0 states have call successors, (0), 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 10:28:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291708 states to 291708 states and 1302878 transitions. [2022-09-16 10:28:28,409 INFO L78 Accepts]: Start accepts. Automaton has 291708 states and 1302878 transitions. Word has length 51 [2022-09-16 10:28:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:28,410 INFO L495 AbstractCegarLoop]: Abstraction has 291708 states and 1302878 transitions. [2022-09-16 10:28:28,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 10:28:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 291708 states and 1302878 transitions. [2022-09-16 10:28:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:28:28,415 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:28,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:28:28,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:28:28,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:28:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1661067003, now seen corresponding path program 1 times [2022-09-16 10:28:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:28,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414827668] [2022-09-16 10:28:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:28,493 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 10:28:28,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:28,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414827668] [2022-09-16 10:28:28,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414827668] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:28,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:28,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:28:28,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696733453] [2022-09-16 10:28:28,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:28,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:28:28,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:28,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:28:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:28,496 INFO L87 Difference]: Start difference. First operand 291708 states and 1302878 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:28:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:33,638 INFO L93 Difference]: Finished difference Result 265308 states and 1142352 transitions. [2022-09-16 10:28:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:28:33,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-09-16 10:28:33,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:38,373 INFO L225 Difference]: With dead ends: 265308 [2022-09-16 10:28:38,374 INFO L226 Difference]: Without dead ends: 265308 [2022-09-16 10:28:38,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:38,375 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 183 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:28:38,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 257 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:39,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265308 states. [2022-09-16 10:28:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265308 to 256668. [2022-09-16 10:28:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256668 states, 256560 states have (on average 4.366066417212348) internal successors, (1120158), 256667 states have internal predecessors, (1120158), 0 states have call successors, (0), 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 10:28:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256668 states to 256668 states and 1120158 transitions. [2022-09-16 10:28:57,651 INFO L78 Accepts]: Start accepts. Automaton has 256668 states and 1120158 transitions. Word has length 63 [2022-09-16 10:28:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:57,660 INFO L495 AbstractCegarLoop]: Abstraction has 256668 states and 1120158 transitions. [2022-09-16 10:28:57,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:28:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 256668 states and 1120158 transitions. [2022-09-16 10:28:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:28:57,680 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:57,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:28:57,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:28:57,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:28:57,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1661067004, now seen corresponding path program 1 times [2022-09-16 10:28:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:57,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014004116] [2022-09-16 10:28:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:57,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:57,806 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 10:28:57,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:57,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014004116] [2022-09-16 10:28:57,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014004116] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:57,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:57,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:28:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219927011] [2022-09-16 10:28:57,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:57,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:28:57,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:28:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:57,809 INFO L87 Difference]: Start difference. First operand 256668 states and 1120158 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:29:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:29:00,850 INFO L93 Difference]: Finished difference Result 172515 states and 762325 transitions. [2022-09-16 10:29:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:29:00,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-09-16 10:29:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:29:03,527 INFO L225 Difference]: With dead ends: 172515 [2022-09-16 10:29:03,527 INFO L226 Difference]: Without dead ends: 172515 [2022-09-16 10:29:03,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:29:03,534 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 135 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:29:03,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 345 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:29:04,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172515 states.