/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_Default.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:04:32,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:04:32,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:04:32,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:04:32,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:04:32,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:04:32,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:04:32,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:04:32,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:04:32,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:04:32,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:04:32,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:04:32,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:04:32,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:04:32,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:04:32,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:04:32,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:04:32,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:04:32,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:04:32,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:04:32,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 02:04:32,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:04:32,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:04:32,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:04:32,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:04:32,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:04:32,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:04:32,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:04:32,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:04:32,928 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:04:32,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:04:32,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:04:32,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:04:32,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:04:32,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:04:32,930 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:04:32,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:04:32,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:04:32,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:04:33,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:04:33,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:04:33,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:04:33,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:04:33,139 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:04:33,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.08.cil-1.c [2022-01-10 02:04:33,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae31065c2/86795331995a419ba0f63e69da4ea156/FLAG652c637ce [2022-01-10 02:04:33,938 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:04:33,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.08.cil-1.c [2022-01-10 02:04:33,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae31065c2/86795331995a419ba0f63e69da4ea156/FLAG652c637ce [2022-01-10 02:04:34,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae31065c2/86795331995a419ba0f63e69da4ea156 [2022-01-10 02:04:34,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:04:34,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:04:34,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:04:34,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:04:34,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:04:34,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:04:34" (1/1) ... [2022-01-10 02:04:34,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1d3e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:34, skipping insertion in model container [2022-01-10 02:04:34,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:04:34" (1/1) ... [2022-01-10 02:04:34,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:04:34,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:04:35,913 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_label46+token_ring.08.cil-1.c[382357,382370] [2022-01-10 02:04:35,939 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_label46+token_ring.08.cil-1.c[383339,383352] [2022-01-10 02:04:36,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:04:36,135 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:04:36,904 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_label46+token_ring.08.cil-1.c[382357,382370] [2022-01-10 02:04:36,908 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_label46+token_ring.08.cil-1.c[383339,383352] [2022-01-10 02:04:36,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:04:36,969 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:04:36,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36 WrapperNode [2022-01-10 02:04:36,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:04:36,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:04:36,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:04:36,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:04:36,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,308 INFO L137 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12967 [2022-01-10 02:04:37,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:04:37,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:04:37,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:04:37,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:04:37,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:04:37,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:04:37,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:04:37,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:04:37,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (1/1) ... [2022-01-10 02:04:37,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:04:37,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:04:37,848 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 02:04:37,867 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 02:04:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:04:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:04:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:04:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:04:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:04:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:04:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:04:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:04:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:04:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:04:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:04:38,041 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:04:38,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:04:43,720 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:04:43,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:04:43,749 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-10 02:04:43,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:04:43 BoogieIcfgContainer [2022-01-10 02:04:43,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:04:43,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:04:43,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:04:43,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:04:43,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:04:34" (1/3) ... [2022-01-10 02:04:43,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162b876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:04:43, skipping insertion in model container [2022-01-10 02:04:43,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:36" (2/3) ... [2022-01-10 02:04:43,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162b876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:04:43, skipping insertion in model container [2022-01-10 02:04:43,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:04:43" (3/3) ... [2022-01-10 02:04:43,764 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.08.cil-1.c [2022-01-10 02:04:43,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:04:43,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:04:43,824 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:04:43,831 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 02:04:43,831 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:04:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-10 02:04:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:43,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:43,905 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] [2022-01-10 02:04:43,905 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:43,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:43,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1316356206, now seen corresponding path program 1 times [2022-01-10 02:04:43,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:43,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777875197] [2022-01-10 02:04:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:43,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:44,379 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 02:04:44,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:44,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777875197] [2022-01-10 02:04:44,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777875197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:44,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:44,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:04:44,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179159219] [2022-01-10 02:04:44,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:44,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:04:44,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:44,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:04:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:04:44,412 INFO L87 Difference]: Start difference. First operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:45,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:45,650 INFO L93 Difference]: Finished difference Result 5022 states and 9244 transitions. [2022-01-10 02:04:45,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:04:45,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-01-10 02:04:45,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:45,683 INFO L225 Difference]: With dead ends: 5022 [2022-01-10 02:04:45,683 INFO L226 Difference]: Without dead ends: 2496 [2022-01-10 02:04:45,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:04:45,701 INFO L933 BasicCegarLoop]: 4499 mSDtfsCounter, 734 mSDsluCounter, 12361 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 16860 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:45,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 16860 Invalid, 563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 02:04:45,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-01-10 02:04:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2398. [2022-01-10 02:04:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2368 states have (on average 1.8344594594594594) internal successors, (4344), 2370 states have internal predecessors, (4344), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-10 02:04:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4388 transitions. [2022-01-10 02:04:45,843 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4388 transitions. Word has length 134 [2022-01-10 02:04:45,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:45,844 INFO L470 AbstractCegarLoop]: Abstraction has 2398 states and 4388 transitions. [2022-01-10 02:04:45,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4388 transitions. [2022-01-10 02:04:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:45,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:45,854 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] [2022-01-10 02:04:45,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:04:45,855 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:45,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2022952812, now seen corresponding path program 1 times [2022-01-10 02:04:45,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:45,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176386485] [2022-01-10 02:04:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:45,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:46,101 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 02:04:46,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:46,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176386485] [2022-01-10 02:04:46,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176386485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:46,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:46,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 02:04:46,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508370363] [2022-01-10 02:04:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:46,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 02:04:46,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:46,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 02:04:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 02:04:46,105 INFO L87 Difference]: Start difference. First operand 2398 states and 4388 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:48,009 INFO L93 Difference]: Finished difference Result 3126 states and 5555 transitions. [2022-01-10 02:04:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:04:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:04:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:48,025 INFO L225 Difference]: With dead ends: 3126 [2022-01-10 02:04:48,026 INFO L226 Difference]: Without dead ends: 2865 [2022-01-10 02:04:48,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:04:48,029 INFO L933 BasicCegarLoop]: 4466 mSDtfsCounter, 5050 mSDsluCounter, 12566 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 17032 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:48,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5065 Valid, 17032 Invalid, 1531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 02:04:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-01-10 02:04:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2670. [2022-01-10 02:04:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2616 states have (on average 1.8103975535168195) internal successors, (4736), 2619 states have internal predecessors, (4736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-01-10 02:04:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 4817 transitions. [2022-01-10 02:04:48,202 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 4817 transitions. Word has length 134 [2022-01-10 02:04:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:48,204 INFO L470 AbstractCegarLoop]: Abstraction has 2670 states and 4817 transitions. [2022-01-10 02:04:48,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 4817 transitions. [2022-01-10 02:04:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:48,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:48,206 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] [2022-01-10 02:04:48,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:04:48,207 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash 316449264, now seen corresponding path program 1 times [2022-01-10 02:04:48,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:48,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667554124] [2022-01-10 02:04:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:48,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:48,392 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 02:04:48,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:48,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667554124] [2022-01-10 02:04:48,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667554124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:48,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:48,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:48,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128539978] [2022-01-10 02:04:48,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:48,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:48,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:48,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:48,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:48,397 INFO L87 Difference]: Start difference. First operand 2670 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:50,533 INFO L93 Difference]: Finished difference Result 3779 states and 6593 transitions. [2022-01-10 02:04:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:50,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:04:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:50,548 INFO L225 Difference]: With dead ends: 3779 [2022-01-10 02:04:50,548 INFO L226 Difference]: Without dead ends: 3246 [2022-01-10 02:04:50,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:50,552 INFO L933 BasicCegarLoop]: 4677 mSDtfsCounter, 5064 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5079 SdHoareTripleChecker+Valid, 21869 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:50,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5079 Valid, 21869 Invalid, 2287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-10 02:04:50,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-01-10 02:04:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2923. [2022-01-10 02:04:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2845 states have (on average 1.789103690685413) internal successors, (5090), 2849 states have internal predecessors, (5090), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-01-10 02:04:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5207 transitions. [2022-01-10 02:04:50,640 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5207 transitions. Word has length 134 [2022-01-10 02:04:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:50,641 INFO L470 AbstractCegarLoop]: Abstraction has 2923 states and 5207 transitions. [2022-01-10 02:04:50,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5207 transitions. [2022-01-10 02:04:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:50,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:50,643 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] [2022-01-10 02:04:50,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:04:50,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1976631762, now seen corresponding path program 1 times [2022-01-10 02:04:50,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:50,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229339021] [2022-01-10 02:04:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:50,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,770 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 02:04:50,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:50,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229339021] [2022-01-10 02:04:50,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229339021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:50,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:50,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:50,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813952468] [2022-01-10 02:04:50,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:50,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:50,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:50,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:50,773 INFO L87 Difference]: Start difference. First operand 2923 states and 5207 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:52,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:52,784 INFO L93 Difference]: Finished difference Result 4741 states and 8111 transitions. [2022-01-10 02:04:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:04:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:52,801 INFO L225 Difference]: With dead ends: 4741 [2022-01-10 02:04:52,801 INFO L226 Difference]: Without dead ends: 3955 [2022-01-10 02:04:52,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:52,805 INFO L933 BasicCegarLoop]: 4494 mSDtfsCounter, 5141 mSDsluCounter, 16738 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:52,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5156 Valid, 21232 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:04:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-01-10 02:04:52,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3430. [2022-01-10 02:04:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3304 states have (on average 1.7551452784503632) internal successors, (5799), 3310 states have internal predecessors, (5799), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-01-10 02:04:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5992 transitions. [2022-01-10 02:04:52,921 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5992 transitions. Word has length 134 [2022-01-10 02:04:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:52,921 INFO L470 AbstractCegarLoop]: Abstraction has 3430 states and 5992 transitions. [2022-01-10 02:04:52,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5992 transitions. [2022-01-10 02:04:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:52,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:52,924 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] [2022-01-10 02:04:52,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:04:52,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash -249486800, now seen corresponding path program 1 times [2022-01-10 02:04:52,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:52,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383796756] [2022-01-10 02:04:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:52,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:53,024 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 02:04:53,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:53,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383796756] [2022-01-10 02:04:53,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383796756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:53,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:53,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:53,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590096057] [2022-01-10 02:04:53,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:53,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:53,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:53,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:53,026 INFO L87 Difference]: Start difference. First operand 3430 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:55,129 INFO L93 Difference]: Finished difference Result 6592 states and 11016 transitions. [2022-01-10 02:04:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:04:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:55,154 INFO L225 Difference]: With dead ends: 6592 [2022-01-10 02:04:55,154 INFO L226 Difference]: Without dead ends: 5299 [2022-01-10 02:04:55,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:55,162 INFO L933 BasicCegarLoop]: 4665 mSDtfsCounter, 5059 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 21857 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:55,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5074 Valid, 21857 Invalid, 2291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:04:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2022-01-10 02:04:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 4445. [2022-01-10 02:04:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4223 states have (on average 1.7089746625621596) internal successors, (7217), 4233 states have internal predecessors, (7217), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-01-10 02:04:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 7568 transitions. [2022-01-10 02:04:55,410 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 7568 transitions. Word has length 134 [2022-01-10 02:04:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 4445 states and 7568 transitions. [2022-01-10 02:04:55,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 7568 transitions. [2022-01-10 02:04:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:55,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:55,414 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] [2022-01-10 02:04:55,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:04:55,415 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:55,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:55,415 INFO L85 PathProgramCache]: Analyzing trace with hash 221869550, now seen corresponding path program 1 times [2022-01-10 02:04:55,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:55,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849604865] [2022-01-10 02:04:55,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:55,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:55,538 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 02:04:55,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:55,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849604865] [2022-01-10 02:04:55,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849604865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:55,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:55,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:55,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108370682] [2022-01-10 02:04:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:55,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:55,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:55,540 INFO L87 Difference]: Start difference. First operand 4445 states and 7568 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:57,647 INFO L93 Difference]: Finished difference Result 10286 states and 16830 transitions. [2022-01-10 02:04:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:04:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:57,680 INFO L225 Difference]: With dead ends: 10286 [2022-01-10 02:04:57,680 INFO L226 Difference]: Without dead ends: 7978 [2022-01-10 02:04:57,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:57,691 INFO L933 BasicCegarLoop]: 4657 mSDtfsCounter, 5054 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 21849 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:57,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5069 Valid, 21849 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 02:04:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2022-01-10 02:04:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 6489. [2022-01-10 02:04:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6075 states have (on average 1.6587654320987655) internal successors, (10077), 6093 states have internal predecessors, (10077), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-01-10 02:04:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 10762 transitions. [2022-01-10 02:04:58,088 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 10762 transitions. Word has length 134 [2022-01-10 02:04:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:58,088 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 10762 transitions. [2022-01-10 02:04:58,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:04:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 10762 transitions. [2022-01-10 02:04:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:04:58,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:58,093 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] [2022-01-10 02:04:58,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:04:58,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1909481172, now seen corresponding path program 1 times [2022-01-10 02:04:58,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:58,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511648816] [2022-01-10 02:04:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:58,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:04:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:04:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:04:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:04:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,224 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 02:04:58,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:58,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511648816] [2022-01-10 02:04:58,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511648816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:58,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:58,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:58,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967646481] [2022-01-10 02:04:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:58,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:58,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:58,227 INFO L87 Difference]: Start difference. First operand 6489 states and 10762 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:00,772 INFO L93 Difference]: Finished difference Result 17692 states and 28550 transitions. [2022-01-10 02:05:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:05:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:00,823 INFO L225 Difference]: With dead ends: 17692 [2022-01-10 02:05:00,823 INFO L226 Difference]: Without dead ends: 13340 [2022-01-10 02:05:00,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:00,844 INFO L933 BasicCegarLoop]: 4652 mSDtfsCounter, 5053 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 21844 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:00,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5068 Valid, 21844 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:05:00,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2022-01-10 02:05:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 10590. [2022-01-10 02:05:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.615093954248366) internal successors, (15815), 9826 states have internal predecessors, (15815), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-01-10 02:05:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17222 transitions. [2022-01-10 02:05:01,514 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17222 transitions. Word has length 134 [2022-01-10 02:05:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:01,515 INFO L470 AbstractCegarLoop]: Abstraction has 10590 states and 17222 transitions. [2022-01-10 02:05:01,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17222 transitions. [2022-01-10 02:05:01,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:05:01,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:01,521 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] [2022-01-10 02:05:01,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:05:01,522 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1346901550, now seen corresponding path program 1 times [2022-01-10 02:05:01,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026014801] [2022-01-10 02:05:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:01,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:05:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:05:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:05:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:05:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:01,643 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 02:05:01,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:01,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026014801] [2022-01-10 02:05:01,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026014801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:01,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:01,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:01,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054780619] [2022-01-10 02:05:01,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:01,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:01,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:01,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:01,645 INFO L87 Difference]: Start difference. First operand 10590 states and 17222 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:03,344 INFO L93 Difference]: Finished difference Result 21934 states and 35495 transitions. [2022-01-10 02:05:03,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:05:03,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:05:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:03,475 INFO L225 Difference]: With dead ends: 21934 [2022-01-10 02:05:03,476 INFO L226 Difference]: Without dead ends: 13481 [2022-01-10 02:05:03,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:05:03,501 INFO L933 BasicCegarLoop]: 4398 mSDtfsCounter, 4752 mSDsluCounter, 16507 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 20905 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:03,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4768 Valid, 20905 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 02:05:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13481 states. [2022-01-10 02:05:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13481 to 10590. [2022-01-10 02:05:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.6117238562091503) internal successors, (15782), 9826 states have internal predecessors, (15782), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-01-10 02:05:04,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17189 transitions. [2022-01-10 02:05:04,060 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17189 transitions. Word has length 134 [2022-01-10 02:05:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:04,060 INFO L470 AbstractCegarLoop]: Abstraction has 10590 states and 17189 transitions. [2022-01-10 02:05:04,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17189 transitions. [2022-01-10 02:05:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:05:04,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:04,069 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] [2022-01-10 02:05:04,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:05:04,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -626263828, now seen corresponding path program 1 times [2022-01-10 02:05:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584394532] [2022-01-10 02:05:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:04,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:05:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:05:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:05:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:05:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:04,188 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 02:05:04,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:04,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584394532] [2022-01-10 02:05:04,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584394532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:04,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:04,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:04,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715636339] [2022-01-10 02:05:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:04,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:04,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:04,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:04,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:04,191 INFO L87 Difference]: Start difference. First operand 10590 states and 17189 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:07,138 INFO L93 Difference]: Finished difference Result 32469 states and 51948 transitions. [2022-01-10 02:05:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:07,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:05:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:07,221 INFO L225 Difference]: With dead ends: 32469 [2022-01-10 02:05:07,221 INFO L226 Difference]: Without dead ends: 24016 [2022-01-10 02:05:07,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:07,258 INFO L933 BasicCegarLoop]: 4641 mSDtfsCounter, 5045 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 21833 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:07,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5060 Valid, 21833 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:05:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24016 states. [2022-01-10 02:05:08,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24016 to 18856. [2022-01-10 02:05:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 17290 states have (on average 1.5792943898207057) internal successors, (27306), 17356 states have internal predecessors, (27306), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-01-10 02:05:08,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 30319 transitions. [2022-01-10 02:05:08,217 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 30319 transitions. Word has length 134 [2022-01-10 02:05:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:08,217 INFO L470 AbstractCegarLoop]: Abstraction has 18856 states and 30319 transitions. [2022-01-10 02:05:08,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 30319 transitions. [2022-01-10 02:05:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:05:08,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:08,234 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] [2022-01-10 02:05:08,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:05:08,235 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1526842990, now seen corresponding path program 1 times [2022-01-10 02:05:08,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:08,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258563401] [2022-01-10 02:05:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:08,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:05:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:05:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:05:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:05:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:08,357 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 02:05:08,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:08,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258563401] [2022-01-10 02:05:08,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258563401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:08,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:08,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:08,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137024786] [2022-01-10 02:05:08,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:08,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:08,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:08,358 INFO L87 Difference]: Start difference. First operand 18856 states and 30319 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:13,552 INFO L93 Difference]: Finished difference Result 69837 states and 111398 transitions. [2022-01-10 02:05:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:05:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:05:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:13,824 INFO L225 Difference]: With dead ends: 69837 [2022-01-10 02:05:13,824 INFO L226 Difference]: Without dead ends: 53118 [2022-01-10 02:05:13,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:05:13,870 INFO L933 BasicCegarLoop]: 4634 mSDtfsCounter, 5374 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 21818 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:13,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5398 Valid, 21818 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-10 02:05:13,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53118 states. [2022-01-10 02:05:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53118 to 35257. [2022-01-10 02:05:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35257 states, 32219 states have (on average 1.5616872032030789) internal successors, (50316), 32349 states have internal predecessors, (50316), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2022-01-10 02:05:15,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35257 states to 35257 states and 56899 transitions. [2022-01-10 02:05:15,879 INFO L78 Accepts]: Start accepts. Automaton has 35257 states and 56899 transitions. Word has length 134 [2022-01-10 02:05:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:15,880 INFO L470 AbstractCegarLoop]: Abstraction has 35257 states and 56899 transitions. [2022-01-10 02:05:15,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 35257 states and 56899 transitions. [2022-01-10 02:05:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 02:05:15,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:15,900 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] [2022-01-10 02:05:15,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:05:15,901 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:15,901 INFO L85 PathProgramCache]: Analyzing trace with hash 903561388, now seen corresponding path program 1 times [2022-01-10 02:05:15,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:15,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369268182] [2022-01-10 02:05:15,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:15,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-01-10 02:05:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 02:05:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-01-10 02:05:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-01-10 02:05:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,013 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 02:05:16,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:16,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369268182] [2022-01-10 02:05:16,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369268182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:16,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:16,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:16,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064301218] [2022-01-10 02:05:16,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:16,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:16,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:16,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:16,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:16,015 INFO L87 Difference]: Start difference. First operand 35257 states and 56899 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 02:05:25,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:25,035 INFO L93 Difference]: Finished difference Result 134716 states and 217164 transitions. [2022-01-10 02:05:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:05:25,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 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 134 [2022-01-10 02:05:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:25,640 INFO L225 Difference]: With dead ends: 134716 [2022-01-10 02:05:25,640 INFO L226 Difference]: Without dead ends: 101596