/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:38:23,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:38:23,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:38:23,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 07:38:23,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 07:38:23,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 07:38:23,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 07:38:23,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 07:38:23,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 07:38:23,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 07:38:23,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 07:38:23,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 07:38:23,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 07:38:23,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 07:38:23,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 07:38:23,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 07:38:23,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 07:38:23,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 07:38:23,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 07:38:23,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 07:38:23,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 07:38:23,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 07:38:23,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 07:38:23,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 07:38:23,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 07:38:23,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:38:23,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:38:23,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:38:23,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 07:38:23,838 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:38:23,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:38:23,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:38:23,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:38:23,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:38:23,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:38:23,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:38:23,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:38:23,840 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:38:23,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:38:23,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:38:23,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:38:23,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:38:23,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:38:23,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:38:23,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:38:23,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:38:23,844 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:38:24,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:38:24,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:38:24,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:38:24,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:38:24,071 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:38:24,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-01-10 07:38:24,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d0429a2/302070c9435a40d588cba4f58c6b3b85/FLAG5067b0940 [2022-01-10 07:38:25,004 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:38:25,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-01-10 07:38:25,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d0429a2/302070c9435a40d588cba4f58c6b3b85/FLAG5067b0940 [2022-01-10 07:38:25,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d0429a2/302070c9435a40d588cba4f58c6b3b85 [2022-01-10 07:38:25,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:38:25,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:38:25,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:38:25,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:38:25,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:38:25,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:38:25" (1/1) ... [2022-01-10 07:38:25,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ecd4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:25, skipping insertion in model container [2022-01-10 07:38:25,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:38:25" (1/1) ... [2022-01-10 07:38:25,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:38:25,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:38:27,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-01-10 07:38:27,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-01-10 07:38:27,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:38:27,532 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:38:28,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-01-10 07:38:28,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-01-10 07:38:28,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:38:28,367 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:38:28,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28 WrapperNode [2022-01-10 07:38:28,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:38:28,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:38:28,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:38:28,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:38:28,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:28,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:28,955 INFO L137 Inliner]: procedures = 71, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13213 [2022-01-10 07:38:28,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:38:28,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:38:28,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:38:28,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:38:28,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:28,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:38:29,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:38:29,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:38:29,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:38:29,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (1/1) ... [2022-01-10 07:38:29,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:38:29,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:38:29,489 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) [2022-01-10 07:38:29,501 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 [2022-01-10 07:38:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:38:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 07:38:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 07:38:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 07:38:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:38:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:38:29,705 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:38:29,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:38:37,950 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:38:37,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:38:37,979 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-10 07:38:37,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:38:37 BoogieIcfgContainer [2022-01-10 07:38:37,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:38:37,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:38:37,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:38:37,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:38:37,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:38:25" (1/3) ... [2022-01-10 07:38:37,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774f6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:38:37, skipping insertion in model container [2022-01-10 07:38:37,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:38:28" (2/3) ... [2022-01-10 07:38:37,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774f6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:38:37, skipping insertion in model container [2022-01-10 07:38:37,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:38:37" (3/3) ... [2022-01-10 07:38:37,992 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.13.cil-2.c [2022-01-10 07:38:37,996 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:38:37,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 07:38:38,051 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:38:38,056 INFO L339 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=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 07:38:38,056 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 07:38:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-10 07:38:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:38,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:38,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:38,218 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-01-10 07:38:38,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:38,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690511823] [2022-01-10 07:38:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:38,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:38,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:38,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:38,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 07:38:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:38,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:38:38,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:38,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:38,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:38,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690511823] [2022-01-10 07:38:38,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690511823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:38,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:38,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:38:38,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960065821] [2022-01-10 07:38:38,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:38,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:38:38,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:38,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:38:38,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:38:38,943 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:39,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:39,117 INFO L93 Difference]: Finished difference Result 5172 states and 9501 transitions. [2022-01-10 07:38:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:38:39,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:39,146 INFO L225 Difference]: With dead ends: 5172 [2022-01-10 07:38:39,147 INFO L226 Difference]: Without dead ends: 2523 [2022-01-10 07:38:39,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:38:39,162 INFO L933 BasicCegarLoop]: 4661 mSDtfsCounter, 630 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 8683 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:39,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 8683 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:38:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-01-10 07:38:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2022-01-10 07:38:39,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-10 07:38:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-01-10 07:38:39,308 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-01-10 07:38:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:39,309 INFO L470 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-01-10 07:38:39,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-01-10 07:38:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:39,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:39,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:39,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:39,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:39,533 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-01-10 07:38:39,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:39,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185260347] [2022-01-10 07:38:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:39,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:39,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:39,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 07:38:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:39,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:38:39,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:40,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:40,088 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:40,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185260347] [2022-01-10 07:38:40,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185260347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:40,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:40,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:38:40,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486270720] [2022-01-10 07:38:40,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:40,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:38:40,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:40,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:38:40,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:38:40,091 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:40,159 INFO L93 Difference]: Finished difference Result 2908 states and 5199 transitions. [2022-01-10 07:38:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:38:40,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:40,172 INFO L225 Difference]: With dead ends: 2908 [2022-01-10 07:38:40,172 INFO L226 Difference]: Without dead ends: 2523 [2022-01-10 07:38:40,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:38:40,177 INFO L933 BasicCegarLoop]: 4591 mSDtfsCounter, 616 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 8549 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:40,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 8549 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:38:40,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-01-10 07:38:40,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2022-01-10 07:38:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-10 07:38:40,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-01-10 07:38:40,246 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-01-10 07:38:40,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:40,246 INFO L470 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-01-10 07:38:40,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-01-10 07:38:40,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:40,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:40,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:40,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:40,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:40,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-01-10 07:38:40,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:40,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654978420] [2022-01-10 07:38:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:40,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:40,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:40,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:40,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 07:38:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:40,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:40,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:41,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:41,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:41,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654978420] [2022-01-10 07:38:41,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654978420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:41,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:41,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:41,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517717042] [2022-01-10 07:38:41,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:41,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:41,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:41,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:41,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:41,042 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:41,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:41,995 INFO L93 Difference]: Finished difference Result 3337 states and 5896 transitions. [2022-01-10 07:38:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:38:41,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:42,013 INFO L225 Difference]: With dead ends: 3337 [2022-01-10 07:38:42,013 INFO L226 Difference]: Without dead ends: 2956 [2022-01-10 07:38:42,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:42,021 INFO L933 BasicCegarLoop]: 4646 mSDtfsCounter, 5189 mSDsluCounter, 9179 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 13825 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:42,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5210 Valid, 13825 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 07:38:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-01-10 07:38:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2925. [2022-01-10 07:38:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5234 transitions. [2022-01-10 07:38:42,125 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5234 transitions. Word has length 189 [2022-01-10 07:38:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:42,126 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5234 transitions. [2022-01-10 07:38:42,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5234 transitions. [2022-01-10 07:38:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:42,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:42,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:42,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:42,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:42,344 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-01-10 07:38:42,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:42,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996785378] [2022-01-10 07:38:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:42,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:42,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:42,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 07:38:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:42,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:42,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:42,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:42,831 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:42,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996785378] [2022-01-10 07:38:42,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996785378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:42,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:42,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:42,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999615430] [2022-01-10 07:38:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:42,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:42,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:42,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:42,833 INFO L87 Difference]: Start difference. First operand 2925 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:43,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:43,322 INFO L93 Difference]: Finished difference Result 3708 states and 6482 transitions. [2022-01-10 07:38:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:43,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:43,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:43,335 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:43,335 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:43,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:43,340 INFO L933 BasicCegarLoop]: 4559 mSDtfsCounter, 4824 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4845 SdHoareTripleChecker+Valid, 13164 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:43,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4845 Valid, 13164 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7923802866130722) internal successors, (5128), 2864 states have internal predecessors, (5128), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5227 transitions. [2022-01-10 07:38:43,411 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5227 transitions. Word has length 189 [2022-01-10 07:38:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:43,411 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5227 transitions. [2022-01-10 07:38:43,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5227 transitions. [2022-01-10 07:38:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:43,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:43,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:43,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:43,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:43,626 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:43,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:43,627 INFO L85 PathProgramCache]: Analyzing trace with hash 874943303, now seen corresponding path program 1 times [2022-01-10 07:38:43,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:43,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684849619] [2022-01-10 07:38:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:43,628 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:43,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:43,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:43,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 07:38:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:43,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:43,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:44,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:44,183 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:44,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684849619] [2022-01-10 07:38:44,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684849619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:44,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:44,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:44,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315895808] [2022-01-10 07:38:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:44,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:44,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:44,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:44,186 INFO L87 Difference]: Start difference. First operand 2925 states and 5227 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:44,657 INFO L93 Difference]: Finished difference Result 3708 states and 6468 transitions. [2022-01-10 07:38:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:44,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:44,671 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:44,671 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:44,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:44,676 INFO L933 BasicCegarLoop]: 4556 mSDtfsCounter, 4817 mSDsluCounter, 8601 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4838 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:44,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4838 Valid, 13157 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:44,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7899335896539672) internal successors, (5121), 2864 states have internal predecessors, (5121), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5220 transitions. [2022-01-10 07:38:44,755 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5220 transitions. Word has length 189 [2022-01-10 07:38:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:44,756 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5220 transitions. [2022-01-10 07:38:44,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5220 transitions. [2022-01-10 07:38:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:44,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:44,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:44,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:44,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:44,970 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash -604172733, now seen corresponding path program 1 times [2022-01-10 07:38:44,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:44,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769261987] [2022-01-10 07:38:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:44,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:44,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:44,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:44,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 07:38:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:45,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:45,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:45,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:45,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:45,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769261987] [2022-01-10 07:38:45,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769261987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:45,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:45,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:45,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932702104] [2022-01-10 07:38:45,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:45,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:45,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:45,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:45,462 INFO L87 Difference]: Start difference. First operand 2925 states and 5220 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:45,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:45,910 INFO L93 Difference]: Finished difference Result 3708 states and 6454 transitions. [2022-01-10 07:38:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:45,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:45,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:45,923 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:45,923 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:45,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:45,927 INFO L933 BasicCegarLoop]: 4553 mSDtfsCounter, 4811 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 13150 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:45,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 13150 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.787486892694862) internal successors, (5114), 2864 states have internal predecessors, (5114), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5213 transitions. [2022-01-10 07:38:46,002 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5213 transitions. Word has length 189 [2022-01-10 07:38:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:46,002 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5213 transitions. [2022-01-10 07:38:46,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5213 transitions. [2022-01-10 07:38:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:46,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:46,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:46,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:46,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:46,216 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:46,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:46,217 INFO L85 PathProgramCache]: Analyzing trace with hash -97696825, now seen corresponding path program 1 times [2022-01-10 07:38:46,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:46,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825950610] [2022-01-10 07:38:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:46,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:46,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:46,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:46,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 07:38:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:46,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:46,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:46,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:46,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:46,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825950610] [2022-01-10 07:38:46,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825950610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:46,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:46,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:46,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172380053] [2022-01-10 07:38:46,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:46,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:46,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:46,650 INFO L87 Difference]: Start difference. First operand 2925 states and 5213 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:47,064 INFO L93 Difference]: Finished difference Result 3708 states and 6440 transitions. [2022-01-10 07:38:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:47,076 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:47,077 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:47,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:47,080 INFO L933 BasicCegarLoop]: 4550 mSDtfsCounter, 4805 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4826 SdHoareTripleChecker+Valid, 13143 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:47,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4826 Valid, 13143 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:47,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7850401957357567) internal successors, (5107), 2864 states have internal predecessors, (5107), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5206 transitions. [2022-01-10 07:38:47,151 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5206 transitions. Word has length 189 [2022-01-10 07:38:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:47,151 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5206 transitions. [2022-01-10 07:38:47,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5206 transitions. [2022-01-10 07:38:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:47,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:47,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:47,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:47,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:47,366 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:47,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash -635548221, now seen corresponding path program 1 times [2022-01-10 07:38:47,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:47,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146277866] [2022-01-10 07:38:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:47,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:47,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:47,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:47,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 07:38:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:47,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:47,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:47,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:47,808 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:47,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146277866] [2022-01-10 07:38:47,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146277866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:47,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:47,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:47,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166628037] [2022-01-10 07:38:47,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:47,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:47,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:47,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:47,811 INFO L87 Difference]: Start difference. First operand 2925 states and 5206 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:48,238 INFO L93 Difference]: Finished difference Result 3708 states and 6426 transitions. [2022-01-10 07:38:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:48,268 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:48,269 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:48,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:48,273 INFO L933 BasicCegarLoop]: 4547 mSDtfsCounter, 4799 mSDsluCounter, 8589 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 13136 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:48,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4820 Valid, 13136 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:48,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7825934987766516) internal successors, (5100), 2864 states have internal predecessors, (5100), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5199 transitions. [2022-01-10 07:38:48,347 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5199 transitions. Word has length 189 [2022-01-10 07:38:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:48,348 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5199 transitions. [2022-01-10 07:38:48,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:48,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5199 transitions. [2022-01-10 07:38:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:48,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:48,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:48,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:48,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:48,562 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash 31833669, now seen corresponding path program 1 times [2022-01-10 07:38:48,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:48,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814770168] [2022-01-10 07:38:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:48,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:48,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:48,564 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:48,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 07:38:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:48,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:48,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:49,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:49,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:49,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814770168] [2022-01-10 07:38:49,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814770168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:49,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:49,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:49,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653113927] [2022-01-10 07:38:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:49,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:49,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:49,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:49,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:49,059 INFO L87 Difference]: Start difference. First operand 2925 states and 5199 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:49,484 INFO L93 Difference]: Finished difference Result 3708 states and 6412 transitions. [2022-01-10 07:38:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:49,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:49,492 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:49,492 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:49,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:49,495 INFO L933 BasicCegarLoop]: 4544 mSDtfsCounter, 4793 mSDsluCounter, 8585 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 13129 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:49,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4814 Valid, 13129 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:49,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7801468018175464) internal successors, (5093), 2864 states have internal predecessors, (5093), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5192 transitions. [2022-01-10 07:38:49,559 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5192 transitions. Word has length 189 [2022-01-10 07:38:49,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:49,559 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5192 transitions. [2022-01-10 07:38:49,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:49,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5192 transitions. [2022-01-10 07:38:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:49,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:49,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:49,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-01-10 07:38:49,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:49,772 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:49,773 INFO L85 PathProgramCache]: Analyzing trace with hash 759764801, now seen corresponding path program 1 times [2022-01-10 07:38:49,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789979770] [2022-01-10 07:38:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:49,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:49,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:49,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:49,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 07:38:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:49,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:49,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:50,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:50,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:50,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789979770] [2022-01-10 07:38:50,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789979770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:50,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:50,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:50,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261969666] [2022-01-10 07:38:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:50,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:50,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:50,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:50,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:50,183 INFO L87 Difference]: Start difference. First operand 2925 states and 5192 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:50,581 INFO L93 Difference]: Finished difference Result 3708 states and 6398 transitions. [2022-01-10 07:38:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:50,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:50,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:50,588 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:50,588 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:50,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:50,593 INFO L933 BasicCegarLoop]: 4541 mSDtfsCounter, 4787 mSDsluCounter, 8581 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4808 SdHoareTripleChecker+Valid, 13122 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:50,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4808 Valid, 13122 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:50,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.777700104858441) internal successors, (5086), 2864 states have internal predecessors, (5086), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5185 transitions. [2022-01-10 07:38:50,672 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5185 transitions. Word has length 189 [2022-01-10 07:38:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:50,672 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5185 transitions. [2022-01-10 07:38:50,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5185 transitions. [2022-01-10 07:38:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:50,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:50,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:50,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:50,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:50,886 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:50,886 INFO L85 PathProgramCache]: Analyzing trace with hash -740774203, now seen corresponding path program 1 times [2022-01-10 07:38:50,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:50,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268079213] [2022-01-10 07:38:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:50,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:50,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:50,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:50,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 07:38:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:51,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:51,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:51,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:51,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:51,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268079213] [2022-01-10 07:38:51,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268079213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:51,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:51,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:51,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189825909] [2022-01-10 07:38:51,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:51,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:51,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:51,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:51,286 INFO L87 Difference]: Start difference. First operand 2925 states and 5185 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:51,673 INFO L93 Difference]: Finished difference Result 3708 states and 6384 transitions. [2022-01-10 07:38:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:51,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:51,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:51,680 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:51,680 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:51,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:51,684 INFO L933 BasicCegarLoop]: 4538 mSDtfsCounter, 4781 mSDsluCounter, 8577 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 13115 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:51,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 13115 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:51,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:51,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7752534078993358) internal successors, (5079), 2864 states have internal predecessors, (5079), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5178 transitions. [2022-01-10 07:38:51,756 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5178 transitions. Word has length 189 [2022-01-10 07:38:51,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:51,756 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5178 transitions. [2022-01-10 07:38:51,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5178 transitions. [2022-01-10 07:38:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:51,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:51,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:51,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:51,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:51,969 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:51,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash -789178687, now seen corresponding path program 1 times [2022-01-10 07:38:51,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:51,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440236804] [2022-01-10 07:38:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:51,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:51,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:51,971 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:51,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 07:38:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:52,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:52,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:52,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:52,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:52,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440236804] [2022-01-10 07:38:52,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440236804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:52,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:52,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:52,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110501877] [2022-01-10 07:38:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:52,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:52,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:52,381 INFO L87 Difference]: Start difference. First operand 2925 states and 5178 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:52,765 INFO L93 Difference]: Finished difference Result 3708 states and 6370 transitions. [2022-01-10 07:38:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:52,771 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:52,771 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:52,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:52,774 INFO L933 BasicCegarLoop]: 4535 mSDtfsCounter, 4774 mSDsluCounter, 8573 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 13108 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:52,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4795 Valid, 13108 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7728067109402308) internal successors, (5072), 2864 states have internal predecessors, (5072), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5171 transitions. [2022-01-10 07:38:52,835 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5171 transitions. Word has length 189 [2022-01-10 07:38:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:52,836 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5171 transitions. [2022-01-10 07:38:52,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5171 transitions. [2022-01-10 07:38:52,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:52,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:52,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:52,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:53,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:53,049 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1794814531, now seen corresponding path program 1 times [2022-01-10 07:38:53,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:53,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315137571] [2022-01-10 07:38:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:53,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:53,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:53,051 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:53,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 07:38:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:53,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:53,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:53,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:53,464 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:53,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315137571] [2022-01-10 07:38:53,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315137571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:53,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:53,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:53,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283899136] [2022-01-10 07:38:53,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:53,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:53,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:53,466 INFO L87 Difference]: Start difference. First operand 2925 states and 5171 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:53,866 INFO L93 Difference]: Finished difference Result 3708 states and 6356 transitions. [2022-01-10 07:38:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:53,937 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:53,937 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:53,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:53,940 INFO L933 BasicCegarLoop]: 4532 mSDtfsCounter, 4768 mSDsluCounter, 8569 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 13101 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:53,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4789 Valid, 13101 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7703600139811255) internal successors, (5065), 2864 states have internal predecessors, (5065), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5164 transitions. [2022-01-10 07:38:54,016 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5164 transitions. Word has length 189 [2022-01-10 07:38:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:54,017 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5164 transitions. [2022-01-10 07:38:54,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5164 transitions. [2022-01-10 07:38:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:54,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:54,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:54,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:54,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:54,231 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:54,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash 250955585, now seen corresponding path program 1 times [2022-01-10 07:38:54,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:54,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769761057] [2022-01-10 07:38:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:54,232 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:54,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:54,233 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:54,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 07:38:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:54,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:54,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:54,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:54,629 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:54,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769761057] [2022-01-10 07:38:54,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769761057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:54,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:54,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:54,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863784468] [2022-01-10 07:38:54,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:54,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:54,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:54,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:54,630 INFO L87 Difference]: Start difference. First operand 2925 states and 5164 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:54,975 INFO L93 Difference]: Finished difference Result 3708 states and 6342 transitions. [2022-01-10 07:38:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:38:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:54,981 INFO L225 Difference]: With dead ends: 3708 [2022-01-10 07:38:54,981 INFO L226 Difference]: Without dead ends: 2925 [2022-01-10 07:38:54,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:54,985 INFO L933 BasicCegarLoop]: 4529 mSDtfsCounter, 4762 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 13094 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:54,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 13094 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 07:38:54,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-01-10 07:38:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2022-01-10 07:38:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7679133170220203) internal successors, (5058), 2864 states have internal predecessors, (5058), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2022-01-10 07:38:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5157 transitions. [2022-01-10 07:38:55,048 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5157 transitions. Word has length 189 [2022-01-10 07:38:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:55,048 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 5157 transitions. [2022-01-10 07:38:55,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:55,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5157 transitions. [2022-01-10 07:38:55,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:55,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:55,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:55,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:55,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:55,263 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:55,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash -98693827, now seen corresponding path program 1 times [2022-01-10 07:38:55,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:55,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607533362] [2022-01-10 07:38:55,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:55,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:55,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:55,266 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:55,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 07:38:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:55,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:55,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:55,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:55,645 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:55,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607533362] [2022-01-10 07:38:55,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607533362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:55,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:55,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:55,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287043381] [2022-01-10 07:38:55,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:55,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:55,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:55,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:55,646 INFO L87 Difference]: Start difference. First operand 2925 states and 5157 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:56,184 INFO L93 Difference]: Finished difference Result 3914 states and 6648 transitions. [2022-01-10 07:38:56,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:38:56,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:56,200 INFO L225 Difference]: With dead ends: 3914 [2022-01-10 07:38:56,200 INFO L226 Difference]: Without dead ends: 3131 [2022-01-10 07:38:56,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:56,207 INFO L933 BasicCegarLoop]: 4526 mSDtfsCounter, 4892 mSDsluCounter, 8560 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4913 SdHoareTripleChecker+Valid, 13086 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:56,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4913 Valid, 13086 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:38:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2022-01-10 07:38:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3131. [2022-01-10 07:38:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3061 states have (on average 1.7422410976804965) internal successors, (5333), 3064 states have internal predecessors, (5333), 51 states have call successors, (51), 16 states have call predecessors, (51), 17 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2022-01-10 07:38:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 5436 transitions. [2022-01-10 07:38:56,288 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 5436 transitions. Word has length 189 [2022-01-10 07:38:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:56,289 INFO L470 AbstractCegarLoop]: Abstraction has 3131 states and 5436 transitions. [2022-01-10 07:38:56,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 5436 transitions. [2022-01-10 07:38:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:56,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:56,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:56,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:56,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:56,502 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash -808489344, now seen corresponding path program 1 times [2022-01-10 07:38:56,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:56,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343513843] [2022-01-10 07:38:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:56,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:56,505 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:56,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 07:38:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:56,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:56,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:56,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:56,908 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:56,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343513843] [2022-01-10 07:38:56,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343513843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:56,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:56,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:56,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578208958] [2022-01-10 07:38:56,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:56,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:56,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:56,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:56,910 INFO L87 Difference]: Start difference. First operand 3131 states and 5436 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:57,438 INFO L93 Difference]: Finished difference Result 4326 states and 7206 transitions. [2022-01-10 07:38:57,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:38:57,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:57,445 INFO L225 Difference]: With dead ends: 4326 [2022-01-10 07:38:57,445 INFO L226 Difference]: Without dead ends: 3337 [2022-01-10 07:38:57,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:57,450 INFO L933 BasicCegarLoop]: 4524 mSDtfsCounter, 4885 mSDsluCounter, 8556 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 13080 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:57,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 13080 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:38:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2022-01-10 07:38:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3337. [2022-01-10 07:38:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 3261 states have (on average 1.718491260349586) internal successors, (5604), 3264 states have internal predecessors, (5604), 53 states have call successors, (53), 20 states have call predecessors, (53), 21 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2022-01-10 07:38:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 5711 transitions. [2022-01-10 07:38:57,540 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 5711 transitions. Word has length 189 [2022-01-10 07:38:57,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:57,540 INFO L470 AbstractCegarLoop]: Abstraction has 3337 states and 5711 transitions. [2022-01-10 07:38:57,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 5711 transitions. [2022-01-10 07:38:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:57,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:57,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:57,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:57,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:57,753 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1456897156, now seen corresponding path program 1 times [2022-01-10 07:38:57,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:57,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040980094] [2022-01-10 07:38:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:57,754 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:57,755 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:57,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 07:38:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:57,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:57,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:58,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:58,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:58,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040980094] [2022-01-10 07:38:58,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040980094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:58,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:58,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:58,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440784556] [2022-01-10 07:38:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:58,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:58,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:58,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:58,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:58,183 INFO L87 Difference]: Start difference. First operand 3337 states and 5711 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:38:58,854 INFO L93 Difference]: Finished difference Result 4738 states and 7756 transitions. [2022-01-10 07:38:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:38:58,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:38:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:38:58,863 INFO L225 Difference]: With dead ends: 4738 [2022-01-10 07:38:58,863 INFO L226 Difference]: Without dead ends: 3543 [2022-01-10 07:38:58,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:38:58,867 INFO L933 BasicCegarLoop]: 4519 mSDtfsCounter, 4879 mSDsluCounter, 8552 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4900 SdHoareTripleChecker+Valid, 13071 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:38:58,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4900 Valid, 13071 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:38:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-01-10 07:38:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3543. [2022-01-10 07:38:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3461 states have (on average 1.6963305403062698) internal successors, (5871), 3464 states have internal predecessors, (5871), 55 states have call successors, (55), 24 states have call predecessors, (55), 25 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2022-01-10 07:38:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 5982 transitions. [2022-01-10 07:38:58,992 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 5982 transitions. Word has length 189 [2022-01-10 07:38:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:38:58,992 INFO L470 AbstractCegarLoop]: Abstraction has 3543 states and 5982 transitions. [2022-01-10 07:38:58,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:38:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 5982 transitions. [2022-01-10 07:38:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:38:58,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:38:58,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:38:59,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 07:38:59,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:38:59,205 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:38:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:38:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash 208308033, now seen corresponding path program 1 times [2022-01-10 07:38:59,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:38:59,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369133647] [2022-01-10 07:38:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:38:59,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:38:59,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:38:59,208 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:38:59,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 07:38:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:38:59,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:38:59,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:38:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:38:59,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:38:59,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:38:59,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369133647] [2022-01-10 07:38:59,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369133647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:38:59,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:38:59,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:38:59,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679969298] [2022-01-10 07:38:59,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:38:59,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:38:59,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:38:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:38:59,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:38:59,671 INFO L87 Difference]: Start difference. First operand 3543 states and 5982 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:00,234 INFO L93 Difference]: Finished difference Result 5150 states and 8298 transitions. [2022-01-10 07:39:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:00,243 INFO L225 Difference]: With dead ends: 5150 [2022-01-10 07:39:00,244 INFO L226 Difference]: Without dead ends: 3749 [2022-01-10 07:39:00,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:00,249 INFO L933 BasicCegarLoop]: 4516 mSDtfsCounter, 4872 mSDsluCounter, 8548 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 13064 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:00,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 13064 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:39:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2022-01-10 07:39:00,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3749. [2022-01-10 07:39:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3661 states have (on average 1.67549849767823) internal successors, (6134), 3664 states have internal predecessors, (6134), 57 states have call successors, (57), 28 states have call predecessors, (57), 29 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2022-01-10 07:39:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 6249 transitions. [2022-01-10 07:39:00,369 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 6249 transitions. Word has length 189 [2022-01-10 07:39:00,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:00,369 INFO L470 AbstractCegarLoop]: Abstraction has 3749 states and 6249 transitions. [2022-01-10 07:39:00,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:00,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 6249 transitions. [2022-01-10 07:39:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:00,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:00,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:00,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:00,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:00,584 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:00,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:00,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1985796158, now seen corresponding path program 1 times [2022-01-10 07:39:00,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:00,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168824796] [2022-01-10 07:39:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:00,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:00,586 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:00,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 07:39:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:00,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:00,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:00,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:00,985 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:00,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168824796] [2022-01-10 07:39:00,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168824796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:00,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:00,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:00,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339238618] [2022-01-10 07:39:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:00,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:00,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:00,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:00,988 INFO L87 Difference]: Start difference. First operand 3749 states and 6249 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:01,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:01,627 INFO L93 Difference]: Finished difference Result 5562 states and 8832 transitions. [2022-01-10 07:39:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:01,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:01,638 INFO L225 Difference]: With dead ends: 5562 [2022-01-10 07:39:01,638 INFO L226 Difference]: Without dead ends: 3955 [2022-01-10 07:39:01,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:01,644 INFO L933 BasicCegarLoop]: 4513 mSDtfsCounter, 4864 mSDsluCounter, 8544 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 13057 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:01,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4885 Valid, 13057 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:39:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-01-10 07:39:01,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3955. [2022-01-10 07:39:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3955 states, 3861 states have (on average 1.6557886557886559) internal successors, (6393), 3864 states have internal predecessors, (6393), 59 states have call successors, (59), 32 states have call predecessors, (59), 33 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2022-01-10 07:39:01,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3955 states to 3955 states and 6512 transitions. [2022-01-10 07:39:01,764 INFO L78 Accepts]: Start accepts. Automaton has 3955 states and 6512 transitions. Word has length 189 [2022-01-10 07:39:01,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:01,764 INFO L470 AbstractCegarLoop]: Abstraction has 3955 states and 6512 transitions. [2022-01-10 07:39:01,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:01,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 6512 transitions. [2022-01-10 07:39:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:01,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:01,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:01,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:01,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:01,977 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1826442821, now seen corresponding path program 1 times [2022-01-10 07:39:01,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:01,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721676779] [2022-01-10 07:39:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:01,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:01,979 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:01,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 07:39:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:02,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:02,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:02,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:02,399 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:02,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721676779] [2022-01-10 07:39:02,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721676779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:02,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:02,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:02,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683648558] [2022-01-10 07:39:02,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:02,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:02,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:02,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:02,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:02,401 INFO L87 Difference]: Start difference. First operand 3955 states and 6512 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:03,086 INFO L93 Difference]: Finished difference Result 5974 states and 9358 transitions. [2022-01-10 07:39:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:03,095 INFO L225 Difference]: With dead ends: 5974 [2022-01-10 07:39:03,095 INFO L226 Difference]: Without dead ends: 4161 [2022-01-10 07:39:03,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:03,100 INFO L933 BasicCegarLoop]: 4510 mSDtfsCounter, 4857 mSDsluCounter, 8540 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4878 SdHoareTripleChecker+Valid, 13050 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:03,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4878 Valid, 13050 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:39:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2022-01-10 07:39:03,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 4161. [2022-01-10 07:39:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 4061 states have (on average 1.6370352130017236) internal successors, (6648), 4064 states have internal predecessors, (6648), 61 states have call successors, (61), 36 states have call predecessors, (61), 37 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2022-01-10 07:39:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 6771 transitions. [2022-01-10 07:39:03,237 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 6771 transitions. Word has length 189 [2022-01-10 07:39:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:03,238 INFO L470 AbstractCegarLoop]: Abstraction has 4161 states and 6771 transitions. [2022-01-10 07:39:03,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:03,238 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 6771 transitions. [2022-01-10 07:39:03,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:03,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:03,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:03,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:03,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:03,451 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:03,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:03,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1993764671, now seen corresponding path program 1 times [2022-01-10 07:39:03,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:03,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469679087] [2022-01-10 07:39:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:03,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:03,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:03,454 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:03,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 07:39:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:03,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:03,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:03,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:03,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:03,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469679087] [2022-01-10 07:39:03,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469679087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:03,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:03,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:03,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430493097] [2022-01-10 07:39:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:03,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:03,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:03,873 INFO L87 Difference]: Start difference. First operand 4161 states and 6771 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:04,498 INFO L93 Difference]: Finished difference Result 6386 states and 9876 transitions. [2022-01-10 07:39:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:04,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:04,509 INFO L225 Difference]: With dead ends: 6386 [2022-01-10 07:39:04,509 INFO L226 Difference]: Without dead ends: 4367 [2022-01-10 07:39:04,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:04,517 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 4850 mSDsluCounter, 8536 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 13043 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:04,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 13043 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:39:04,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-01-10 07:39:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4367. [2022-01-10 07:39:04,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4367 states, 4261 states have (on average 1.6191034968317297) internal successors, (6899), 4264 states have internal predecessors, (6899), 63 states have call successors, (63), 40 states have call predecessors, (63), 41 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2022-01-10 07:39:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4367 states to 4367 states and 7026 transitions. [2022-01-10 07:39:04,674 INFO L78 Accepts]: Start accepts. Automaton has 4367 states and 7026 transitions. Word has length 189 [2022-01-10 07:39:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:04,674 INFO L470 AbstractCegarLoop]: Abstraction has 4367 states and 7026 transitions. [2022-01-10 07:39:04,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4367 states and 7026 transitions. [2022-01-10 07:39:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:04,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:04,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:04,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:04,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:04,887 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1233244476, now seen corresponding path program 1 times [2022-01-10 07:39:04,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:04,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092231032] [2022-01-10 07:39:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:04,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:04,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:04,890 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:04,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 07:39:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:05,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:05,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:05,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:05,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:05,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092231032] [2022-01-10 07:39:05,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092231032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:05,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:05,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:05,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121056043] [2022-01-10 07:39:05,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:05,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:05,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:05,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:05,308 INFO L87 Difference]: Start difference. First operand 4367 states and 7026 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:05,929 INFO L93 Difference]: Finished difference Result 6798 states and 10386 transitions. [2022-01-10 07:39:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:05,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:05,942 INFO L225 Difference]: With dead ends: 6798 [2022-01-10 07:39:05,942 INFO L226 Difference]: Without dead ends: 4573 [2022-01-10 07:39:05,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:05,948 INFO L933 BasicCegarLoop]: 4504 mSDtfsCounter, 4843 mSDsluCounter, 8532 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 13036 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:05,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 13036 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:39:05,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2022-01-10 07:39:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 4573. [2022-01-10 07:39:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4461 states have (on average 1.601882985877606) internal successors, (7146), 4464 states have internal predecessors, (7146), 65 states have call successors, (65), 44 states have call predecessors, (65), 45 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2022-01-10 07:39:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7277 transitions. [2022-01-10 07:39:06,265 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7277 transitions. Word has length 189 [2022-01-10 07:39:06,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:06,266 INFO L470 AbstractCegarLoop]: Abstraction has 4573 states and 7277 transitions. [2022-01-10 07:39:06,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7277 transitions. [2022-01-10 07:39:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:06,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:06,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:06,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:06,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:06,478 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1659798974, now seen corresponding path program 1 times [2022-01-10 07:39:06,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:06,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248760059] [2022-01-10 07:39:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:06,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:06,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:06,481 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:06,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-01-10 07:39:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:06,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:06,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:06,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:06,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:06,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248760059] [2022-01-10 07:39:06,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248760059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:06,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:06,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:06,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365046315] [2022-01-10 07:39:06,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:06,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:06,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:06,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:06,860 INFO L87 Difference]: Start difference. First operand 4573 states and 7277 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:07,491 INFO L93 Difference]: Finished difference Result 7210 states and 10888 transitions. [2022-01-10 07:39:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:07,499 INFO L225 Difference]: With dead ends: 7210 [2022-01-10 07:39:07,499 INFO L226 Difference]: Without dead ends: 4779 [2022-01-10 07:39:07,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:07,503 INFO L933 BasicCegarLoop]: 4501 mSDtfsCounter, 4836 mSDsluCounter, 8528 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4857 SdHoareTripleChecker+Valid, 13029 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:07,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4857 Valid, 13029 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 07:39:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2022-01-10 07:39:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4779. [2022-01-10 07:39:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 4661 states have (on average 1.5852821282986485) internal successors, (7389), 4664 states have internal predecessors, (7389), 67 states have call successors, (67), 48 states have call predecessors, (67), 49 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2022-01-10 07:39:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 7524 transitions. [2022-01-10 07:39:07,694 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 7524 transitions. Word has length 189 [2022-01-10 07:39:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:07,694 INFO L470 AbstractCegarLoop]: Abstraction has 4779 states and 7524 transitions. [2022-01-10 07:39:07,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 7524 transitions. [2022-01-10 07:39:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:07,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:07,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:07,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:07,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:07,907 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:07,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:07,907 INFO L85 PathProgramCache]: Analyzing trace with hash 48328763, now seen corresponding path program 1 times [2022-01-10 07:39:07,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:07,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985377114] [2022-01-10 07:39:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:07,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:07,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:07,909 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:07,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-01-10 07:39:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:08,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:08,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:08,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:08,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:08,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985377114] [2022-01-10 07:39:08,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985377114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:08,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:08,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:08,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964387969] [2022-01-10 07:39:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:08,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:08,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:08,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:08,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:08,284 INFO L87 Difference]: Start difference. First operand 4779 states and 7524 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:08,849 INFO L93 Difference]: Finished difference Result 7622 states and 11382 transitions. [2022-01-10 07:39:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:08,858 INFO L225 Difference]: With dead ends: 7622 [2022-01-10 07:39:08,858 INFO L226 Difference]: Without dead ends: 4985 [2022-01-10 07:39:08,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:08,863 INFO L933 BasicCegarLoop]: 4498 mSDtfsCounter, 4829 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 13022 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:08,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4850 Valid, 13022 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:39:08,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2022-01-10 07:39:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4985. [2022-01-10 07:39:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 4861 states have (on average 1.5692244394157582) internal successors, (7628), 4864 states have internal predecessors, (7628), 69 states have call successors, (69), 52 states have call predecessors, (69), 53 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2022-01-10 07:39:09,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 7767 transitions. [2022-01-10 07:39:09,142 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 7767 transitions. Word has length 189 [2022-01-10 07:39:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:09,142 INFO L470 AbstractCegarLoop]: Abstraction has 4985 states and 7767 transitions. [2022-01-10 07:39:09,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 7767 transitions. [2022-01-10 07:39:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:09,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:09,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:09,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:09,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:09,355 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:09,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1913090113, now seen corresponding path program 1 times [2022-01-10 07:39:09,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:09,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546229051] [2022-01-10 07:39:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:09,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:09,357 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:09,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-01-10 07:39:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:09,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:09,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:09,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:09,742 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:09,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546229051] [2022-01-10 07:39:09,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546229051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:09,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:09,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:09,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366971292] [2022-01-10 07:39:09,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:09,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:09,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:09,744 INFO L87 Difference]: Start difference. First operand 4985 states and 7767 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:10,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:10,370 INFO L93 Difference]: Finished difference Result 8034 states and 11868 transitions. [2022-01-10 07:39:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:10,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:10,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:10,381 INFO L225 Difference]: With dead ends: 8034 [2022-01-10 07:39:10,381 INFO L226 Difference]: Without dead ends: 5191 [2022-01-10 07:39:10,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:10,388 INFO L933 BasicCegarLoop]: 4495 mSDtfsCounter, 4822 mSDsluCounter, 8520 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 13015 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:10,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4843 Valid, 13015 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:39:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5191 states. [2022-01-10 07:39:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5191 to 5191. [2022-01-10 07:39:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5061 states have (on average 1.5536455245998815) internal successors, (7863), 5064 states have internal predecessors, (7863), 71 states have call successors, (71), 56 states have call predecessors, (71), 57 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2022-01-10 07:39:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 8006 transitions. [2022-01-10 07:39:10,611 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 8006 transitions. Word has length 189 [2022-01-10 07:39:10,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:10,611 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 8006 transitions. [2022-01-10 07:39:10,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 8006 transitions. [2022-01-10 07:39:10,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:10,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:10,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:10,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:10,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:10,824 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash 853869244, now seen corresponding path program 1 times [2022-01-10 07:39:10,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:10,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441685444] [2022-01-10 07:39:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:10,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:10,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:10,831 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:10,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-01-10 07:39:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:10,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:10,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:11,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:11,222 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441685444] [2022-01-10 07:39:11,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441685444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:11,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:11,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:39:11,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696371512] [2022-01-10 07:39:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:11,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:11,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:11,223 INFO L87 Difference]: Start difference. First operand 5191 states and 8006 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:11,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:11,891 INFO L93 Difference]: Finished difference Result 8446 states and 12346 transitions. [2022-01-10 07:39:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:39:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:11,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:11,898 INFO L225 Difference]: With dead ends: 8446 [2022-01-10 07:39:11,898 INFO L226 Difference]: Without dead ends: 5397 [2022-01-10 07:39:11,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:39:11,903 INFO L933 BasicCegarLoop]: 4492 mSDtfsCounter, 4814 mSDsluCounter, 8516 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 13008 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:11,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4835 Valid, 13008 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 07:39:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2022-01-10 07:39:12,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5397. [2022-01-10 07:39:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5397 states, 5261 states have (on average 1.5384907812203004) internal successors, (8094), 5264 states have internal predecessors, (8094), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 8241 transitions. [2022-01-10 07:39:12,102 INFO L78 Accepts]: Start accepts. Automaton has 5397 states and 8241 transitions. Word has length 189 [2022-01-10 07:39:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:12,102 INFO L470 AbstractCegarLoop]: Abstraction has 5397 states and 8241 transitions. [2022-01-10 07:39:12,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5397 states and 8241 transitions. [2022-01-10 07:39:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:12,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:12,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:12,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-01-10 07:39:12,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:12,305 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2099662408, now seen corresponding path program 1 times [2022-01-10 07:39:12,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:12,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051150865] [2022-01-10 07:39:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:12,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:12,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:12,307 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:12,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-01-10 07:39:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:12,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:12,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:12,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:12,684 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051150865] [2022-01-10 07:39:12,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051150865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:12,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:12,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 07:39:12,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122143798] [2022-01-10 07:39:12,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:12,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:12,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:12,685 INFO L87 Difference]: Start difference. First operand 5397 states and 8241 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:12,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:12,922 INFO L93 Difference]: Finished difference Result 9029 states and 13037 transitions. [2022-01-10 07:39:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:39:12,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:12,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:12,932 INFO L225 Difference]: With dead ends: 9029 [2022-01-10 07:39:12,932 INFO L226 Difference]: Without dead ends: 5775 [2022-01-10 07:39:12,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:39:12,938 INFO L933 BasicCegarLoop]: 4520 mSDtfsCounter, 519 mSDsluCounter, 13764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 18284 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:12,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 18284 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:39:12,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5775 states. [2022-01-10 07:39:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5775 to 5403. [2022-01-10 07:39:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5267 states have (on average 1.5333206759065883) internal successors, (8076), 5270 states have internal predecessors, (8076), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 8223 transitions. [2022-01-10 07:39:13,245 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 8223 transitions. Word has length 189 [2022-01-10 07:39:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:13,245 INFO L470 AbstractCegarLoop]: Abstraction has 5403 states and 8223 transitions. [2022-01-10 07:39:13,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 8223 transitions. [2022-01-10 07:39:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:13,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:13,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:13,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-01-10 07:39:13,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:13,459 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:13,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:13,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1247252922, now seen corresponding path program 1 times [2022-01-10 07:39:13,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:13,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429564628] [2022-01-10 07:39:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:13,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:13,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:13,461 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:13,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-01-10 07:39:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:13,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:13,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:13,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:13,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:13,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429564628] [2022-01-10 07:39:13,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429564628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:13,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:13,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 07:39:13,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155298361] [2022-01-10 07:39:13,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:13,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:13,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:13,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:13,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:13,857 INFO L87 Difference]: Start difference. First operand 5403 states and 8223 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:14,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:14,170 INFO L93 Difference]: Finished difference Result 9013 states and 12965 transitions. [2022-01-10 07:39:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:39:14,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:14,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:14,185 INFO L225 Difference]: With dead ends: 9013 [2022-01-10 07:39:14,185 INFO L226 Difference]: Without dead ends: 5753 [2022-01-10 07:39:14,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:39:14,194 INFO L933 BasicCegarLoop]: 4520 mSDtfsCounter, 480 mSDsluCounter, 13749 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 18269 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:14,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 18269 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:39:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2022-01-10 07:39:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 5409. [2022-01-10 07:39:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5409 states, 5273 states have (on average 1.5281623364308743) internal successors, (8058), 5276 states have internal predecessors, (8058), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 8205 transitions. [2022-01-10 07:39:14,412 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 8205 transitions. Word has length 189 [2022-01-10 07:39:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:14,412 INFO L470 AbstractCegarLoop]: Abstraction has 5409 states and 8205 transitions. [2022-01-10 07:39:14,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 8205 transitions. [2022-01-10 07:39:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:14,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:14,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:14,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:14,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:14,625 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:14,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2109086524, now seen corresponding path program 1 times [2022-01-10 07:39:14,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:14,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675882477] [2022-01-10 07:39:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:14,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:14,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:14,627 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:14,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-01-10 07:39:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:14,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:14,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:14,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:14,993 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:14,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675882477] [2022-01-10 07:39:14,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675882477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:14,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:14,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 07:39:14,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883965240] [2022-01-10 07:39:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:14,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:14,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:14,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:14,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:14,994 INFO L87 Difference]: Start difference. First operand 5409 states and 8205 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:15,239 INFO L93 Difference]: Finished difference Result 8997 states and 12893 transitions. [2022-01-10 07:39:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:39:15,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:15,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:15,248 INFO L225 Difference]: With dead ends: 8997 [2022-01-10 07:39:15,248 INFO L226 Difference]: Without dead ends: 5731 [2022-01-10 07:39:15,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:39:15,253 INFO L933 BasicCegarLoop]: 4520 mSDtfsCounter, 441 mSDsluCounter, 13734 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 18254 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:15,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 18254 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:39:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2022-01-10 07:39:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 5415. [2022-01-10 07:39:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5279 states have (on average 1.523015722674749) internal successors, (8040), 5282 states have internal predecessors, (8040), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:15,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 8187 transitions. [2022-01-10 07:39:15,528 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 8187 transitions. Word has length 189 [2022-01-10 07:39:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:15,529 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 8187 transitions. [2022-01-10 07:39:15,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 8187 transitions. [2022-01-10 07:39:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:15,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:15,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:15,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:15,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:15,731 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:15,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash 387083838, now seen corresponding path program 1 times [2022-01-10 07:39:15,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:15,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732317765] [2022-01-10 07:39:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:15,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:15,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:15,733 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:15,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-01-10 07:39:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:15,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:15,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:16,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:16,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:16,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732317765] [2022-01-10 07:39:16,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732317765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:16,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:16,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 07:39:16,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112213269] [2022-01-10 07:39:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:16,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:16,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:16,117 INFO L87 Difference]: Start difference. First operand 5415 states and 8187 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:16,373 INFO L93 Difference]: Finished difference Result 8981 states and 12821 transitions. [2022-01-10 07:39:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:39:16,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:16,382 INFO L225 Difference]: With dead ends: 8981 [2022-01-10 07:39:16,382 INFO L226 Difference]: Without dead ends: 5709 [2022-01-10 07:39:16,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:39:16,389 INFO L933 BasicCegarLoop]: 4520 mSDtfsCounter, 402 mSDsluCounter, 13719 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 18239 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:16,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 18239 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:39:16,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2022-01-10 07:39:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5421. [2022-01-10 07:39:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5421 states, 5285 states have (on average 1.5178807947019868) internal successors, (8022), 5288 states have internal predecessors, (8022), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5421 states to 5421 states and 8169 transitions. [2022-01-10 07:39:16,694 INFO L78 Accepts]: Start accepts. Automaton has 5421 states and 8169 transitions. Word has length 189 [2022-01-10 07:39:16,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:16,695 INFO L470 AbstractCegarLoop]: Abstraction has 5421 states and 8169 transitions. [2022-01-10 07:39:16,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:16,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5421 states and 8169 transitions. [2022-01-10 07:39:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:16,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:16,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:16,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-01-10 07:39:16,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:16,908 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:16,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1260279104, now seen corresponding path program 1 times [2022-01-10 07:39:16,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:16,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118477702] [2022-01-10 07:39:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:16,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:16,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:16,910 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:16,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-01-10 07:39:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:17,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:17,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:39:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:39:17,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:39:17,276 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:39:17,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118477702] [2022-01-10 07:39:17,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118477702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:39:17,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:39:17,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 07:39:17,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78991449] [2022-01-10 07:39:17,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:39:17,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:39:17,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:39:17,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:39:17,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:39:17,277 INFO L87 Difference]: Start difference. First operand 5421 states and 8169 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:39:17,593 INFO L93 Difference]: Finished difference Result 8937 states and 12709 transitions. [2022-01-10 07:39:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:39:17,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-01-10 07:39:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:39:17,602 INFO L225 Difference]: With dead ends: 8937 [2022-01-10 07:39:17,602 INFO L226 Difference]: Without dead ends: 5659 [2022-01-10 07:39:17,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 07:39:17,607 INFO L933 BasicCegarLoop]: 4520 mSDtfsCounter, 323 mSDsluCounter, 13684 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 18204 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:39:17,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 18204 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:39:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5659 states. [2022-01-10 07:39:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5659 to 5427. [2022-01-10 07:39:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5291 states have (on average 1.5127575127575128) internal successors, (8004), 5294 states have internal predecessors, (8004), 73 states have call successors, (73), 60 states have call predecessors, (73), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2022-01-10 07:39:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 8151 transitions. [2022-01-10 07:39:17,840 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 8151 transitions. Word has length 189 [2022-01-10 07:39:17,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:39:17,841 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 8151 transitions. [2022-01-10 07:39:17,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 07:39:17,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 8151 transitions. [2022-01-10 07:39:17,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-10 07:39:17,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:39:17,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:39:17,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-01-10 07:39:18,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:39:18,047 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:39:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:39:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash -229238206, now seen corresponding path program 1 times [2022-01-10 07:39:18,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:39:18,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800414942] [2022-01-10 07:39:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:39:18,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:39:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:39:18,049 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:39:18,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-01-10 07:39:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:39:18,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:39:18,189 INFO L286 TraceCheckSpWp]: Computing forward predicates...