/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_label45+token_ring.14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:03:30,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:03:30,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:03:30,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:03:30,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:03:30,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:03:30,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:03:30,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:03:30,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:03:30,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:03:30,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:03:30,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:03:30,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:03:30,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:03:30,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:03:30,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:03:30,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:03:30,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:03:30,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:03:30,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:03:30,521 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 02:03:30,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:03:30,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:03:30,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:03:30,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:03:30,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:03:30,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:03:30,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:03:30,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:03:30,547 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:03:30,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:03:30,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:03:30,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:03:30,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:03:30,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:03:30,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:03:30,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:03:30,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:03:30,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:03:30,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:03:30,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:03:30,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:03:30,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:03:30,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:03:30,766 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:03:30,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.14.cil.c [2022-01-10 02:03:30,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2803350d/3ec65836233849b5b025f2f837d4be0c/FLAG1327126d4 [2022-01-10 02:03:31,494 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:03:31,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.14.cil.c [2022-01-10 02:03:31,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2803350d/3ec65836233849b5b025f2f837d4be0c/FLAG1327126d4 [2022-01-10 02:03:31,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2803350d/3ec65836233849b5b025f2f837d4be0c [2022-01-10 02:03:31,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:03:31,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:03:31,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:03:31,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:03:31,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:03:31,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:03:31" (1/1) ... [2022-01-10 02:03:31,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f68d11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:31, skipping insertion in model container [2022-01-10 02:03:31,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:03:31" (1/1) ... [2022-01-10 02:03:31,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:03:31,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:03:33,300 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_label45+token_ring.14.cil.c[380323,380336] [2022-01-10 02:03:33,321 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_label45+token_ring.14.cil.c[383339,383352] [2022-01-10 02:03:33,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:03:33,521 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:03:34,161 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_label45+token_ring.14.cil.c[380323,380336] [2022-01-10 02:03:34,166 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_label45+token_ring.14.cil.c[383339,383352] [2022-01-10 02:03:34,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:03:34,240 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:03:34,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34 WrapperNode [2022-01-10 02:03:34,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:03:34,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:03:34,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:03:34,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:03:34,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,591 INFO L137 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13202 [2022-01-10 02:03:34,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:03:34,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:03:34,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:03:34,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:03:34,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:03:34,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:03:34,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:03:34,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:03:34,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (1/1) ... [2022-01-10 02:03:34,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:03:34,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:03:34,975 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 02:03:35,048 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 02:03:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:03:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:03:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:03:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:03:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:03:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:03:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-01-10 02:03:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:03:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:03:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:03:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:03:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:03:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:03:35,152 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:03:35,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:03:40,125 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:03:40,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:03:40,151 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-10 02:03:40,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:03:40 BoogieIcfgContainer [2022-01-10 02:03:40,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:03:40,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:03:40,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:03:40,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:03:40,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:03:31" (1/3) ... [2022-01-10 02:03:40,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a7dfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:03:40, skipping insertion in model container [2022-01-10 02:03:40,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:03:34" (2/3) ... [2022-01-10 02:03:40,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a7dfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:03:40, skipping insertion in model container [2022-01-10 02:03:40,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:03:40" (3/3) ... [2022-01-10 02:03:40,161 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.14.cil.c [2022-01-10 02:03:40,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:03:40,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:03:40,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:03:40,206 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 02:03:40,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:03:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 2571 states, 2533 states have (on average 1.843268851164627) internal successors, (4669), 2538 states have internal predecessors, (4669), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-01-10 02:03:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:40,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:40,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:40,257 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1261108038, now seen corresponding path program 1 times [2022-01-10 02:03:40,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:40,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028776305] [2022-01-10 02:03:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:40,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:40,666 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 02:03:40,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:40,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028776305] [2022-01-10 02:03:40,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028776305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:40,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:40,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:03:40,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214005797] [2022-01-10 02:03:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:40,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:03:40,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:40,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:03:40,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:03:40,695 INFO L87 Difference]: Start difference. First operand has 2571 states, 2533 states have (on average 1.843268851164627) internal successors, (4669), 2538 states have internal predecessors, (4669), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:42,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:42,258 INFO L93 Difference]: Finished difference Result 5277 states and 9684 transitions. [2022-01-10 02:03:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:03:42,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:42,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:42,281 INFO L225 Difference]: With dead ends: 5277 [2022-01-10 02:03:42,282 INFO L226 Difference]: Without dead ends: 2645 [2022-01-10 02:03:42,292 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 02:03:42,297 INFO L933 BasicCegarLoop]: 4691 mSDtfsCounter, 1044 mSDsluCounter, 12475 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 17166 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:42,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1068 Valid, 17166 Invalid, 787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:03:42,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-01-10 02:03:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2503. [2022-01-10 02:03:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8265099310903932) internal successors, (4506), 2470 states have internal predecessors, (4506), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-10 02:03:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4560 transitions. [2022-01-10 02:03:42,426 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4560 transitions. Word has length 179 [2022-01-10 02:03:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:42,427 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 4560 transitions. [2022-01-10 02:03:42,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4560 transitions. [2022-01-10 02:03:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:42,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:42,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:42,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:03:42,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1530760952, now seen corresponding path program 1 times [2022-01-10 02:03:42,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:42,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969230102] [2022-01-10 02:03:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:42,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:42,670 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 02:03:42,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969230102] [2022-01-10 02:03:42,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969230102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:42,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:42,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:03:42,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608032381] [2022-01-10 02:03:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:42,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:03:42,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:03:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:03:42,673 INFO L87 Difference]: Start difference. First operand 2503 states and 4560 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:44,015 INFO L93 Difference]: Finished difference Result 3012 states and 5382 transitions. [2022-01-10 02:03:44,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:03:44,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:44,025 INFO L225 Difference]: With dead ends: 3012 [2022-01-10 02:03:44,026 INFO L226 Difference]: Without dead ends: 2645 [2022-01-10 02:03:44,028 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 02:03:44,028 INFO L933 BasicCegarLoop]: 4621 mSDtfsCounter, 1030 mSDsluCounter, 12272 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 16893 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:44,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 16893 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:03:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-01-10 02:03:44,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2503. [2022-01-10 02:03:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8261045804620997) internal successors, (4505), 2470 states have internal predecessors, (4505), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-10 02:03:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4559 transitions. [2022-01-10 02:03:44,085 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4559 transitions. Word has length 179 [2022-01-10 02:03:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:44,085 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 4559 transitions. [2022-01-10 02:03:44,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4559 transitions. [2022-01-10 02:03:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:44,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:44,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:44,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:03:44,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:44,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2101032758, now seen corresponding path program 1 times [2022-01-10 02:03:44,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:44,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635579410] [2022-01-10 02:03:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:44,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:44,284 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 02:03:44,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:44,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635579410] [2022-01-10 02:03:44,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635579410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:44,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:44,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 02:03:44,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138808651] [2022-01-10 02:03:44,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:44,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 02:03:44,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 02:03:44,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 02:03:44,288 INFO L87 Difference]: Start difference. First operand 2503 states and 4559 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:46,799 INFO L93 Difference]: Finished difference Result 3529 states and 6222 transitions. [2022-01-10 02:03:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:03:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:46,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:46,810 INFO L225 Difference]: With dead ends: 3529 [2022-01-10 02:03:46,810 INFO L226 Difference]: Without dead ends: 3167 [2022-01-10 02:03:46,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:03:46,812 INFO L933 BasicCegarLoop]: 4673 mSDtfsCounter, 5521 mSDsluCounter, 12838 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5540 SdHoareTripleChecker+Valid, 17511 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:46,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5540 Valid, 17511 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-10 02:03:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-01-10 02:03:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2882. [2022-01-10 02:03:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2818 states have (on average 1.798083747338538) internal successors, (5067), 2822 states have internal predecessors, (5067), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-01-10 02:03:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 5166 transitions. [2022-01-10 02:03:46,890 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 5166 transitions. Word has length 179 [2022-01-10 02:03:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:46,890 INFO L470 AbstractCegarLoop]: Abstraction has 2882 states and 5166 transitions. [2022-01-10 02:03:46,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 5166 transitions. [2022-01-10 02:03:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:46,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:46,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:46,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:03:46,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash 808194758, now seen corresponding path program 1 times [2022-01-10 02:03:46,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:46,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424261829] [2022-01-10 02:03:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:46,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:46,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:47,026 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 02:03:47,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:47,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424261829] [2022-01-10 02:03:47,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424261829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:47,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:47,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:03:47,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745130278] [2022-01-10 02:03:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:47,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:03:47,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:03:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:03:47,028 INFO L87 Difference]: Start difference. First operand 2882 states and 5166 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:50,141 INFO L93 Difference]: Finished difference Result 4448 states and 7708 transitions. [2022-01-10 02:03:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:03:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:50,158 INFO L225 Difference]: With dead ends: 4448 [2022-01-10 02:03:50,158 INFO L226 Difference]: Without dead ends: 3707 [2022-01-10 02:03:50,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:03:50,175 INFO L933 BasicCegarLoop]: 4980 mSDtfsCounter, 5549 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 22728 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:50,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5568 Valid, 22728 Invalid, 3219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-10 02:03:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-01-10 02:03:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3234. [2022-01-10 02:03:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3142 states have (on average 1.7743475493316359) internal successors, (5575), 3147 states have internal predecessors, (5575), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-01-10 02:03:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 5718 transitions. [2022-01-10 02:03:50,270 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 5718 transitions. Word has length 179 [2022-01-10 02:03:50,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:50,270 INFO L470 AbstractCegarLoop]: Abstraction has 3234 states and 5718 transitions. [2022-01-10 02:03:50,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 5718 transitions. [2022-01-10 02:03:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:50,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:50,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:50,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:03:50,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:50,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash -961276856, now seen corresponding path program 1 times [2022-01-10 02:03:50,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:50,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362853030] [2022-01-10 02:03:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:50,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:50,416 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 02:03:50,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:50,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362853030] [2022-01-10 02:03:50,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362853030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:50,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:50,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:03:50,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437098902] [2022-01-10 02:03:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:50,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:03:50,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:50,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:03:50,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:03:50,419 INFO L87 Difference]: Start difference. First operand 3234 states and 5718 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:53,275 INFO L93 Difference]: Finished difference Result 5803 states and 9880 transitions. [2022-01-10 02:03:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:03:53,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:53,296 INFO L225 Difference]: With dead ends: 5803 [2022-01-10 02:03:53,296 INFO L226 Difference]: Without dead ends: 4710 [2022-01-10 02:03:53,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:03:53,304 INFO L933 BasicCegarLoop]: 4717 mSDtfsCounter, 5660 mSDsluCounter, 17090 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5679 SdHoareTripleChecker+Valid, 21807 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:53,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5679 Valid, 21807 Invalid, 2908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 02:03:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2022-01-10 02:03:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 3939. [2022-01-10 02:03:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3939 states, 3791 states have (on average 1.738855183328937) internal successors, (6592), 3798 states have internal predecessors, (6592), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-01-10 02:03:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 6827 transitions. [2022-01-10 02:03:53,456 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 6827 transitions. Word has length 179 [2022-01-10 02:03:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:53,456 INFO L470 AbstractCegarLoop]: Abstraction has 3939 states and 6827 transitions. [2022-01-10 02:03:53,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 6827 transitions. [2022-01-10 02:03:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:53,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:53,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:53,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:03:53,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1572545914, now seen corresponding path program 1 times [2022-01-10 02:03:53,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:53,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782583203] [2022-01-10 02:03:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:53,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:53,595 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 02:03:53,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:53,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782583203] [2022-01-10 02:03:53,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782583203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:53,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:53,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:03:53,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866848300] [2022-01-10 02:03:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:53,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:03:53,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:53,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:03:53,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:03:53,597 INFO L87 Difference]: Start difference. First operand 3939 states and 6827 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:56,633 INFO L93 Difference]: Finished difference Result 8408 states and 14029 transitions. [2022-01-10 02:03:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:03:56,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:03:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:56,653 INFO L225 Difference]: With dead ends: 8408 [2022-01-10 02:03:56,653 INFO L226 Difference]: Without dead ends: 6610 [2022-01-10 02:03:56,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:03:56,660 INFO L933 BasicCegarLoop]: 4968 mSDtfsCounter, 5544 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5563 SdHoareTripleChecker+Valid, 22716 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:56,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5563 Valid, 22716 Invalid, 3223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:03:56,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6610 states. [2022-01-10 02:03:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6610 to 5350. [2022-01-10 02:03:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5350 states, 5090 states have (on average 1.694695481335953) internal successors, (8626), 5101 states have internal predecessors, (8626), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-01-10 02:03:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 9051 transitions. [2022-01-10 02:03:56,869 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 9051 transitions. Word has length 179 [2022-01-10 02:03:56,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:56,870 INFO L470 AbstractCegarLoop]: Abstraction has 5350 states and 9051 transitions. [2022-01-10 02:03:56,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:56,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 9051 transitions. [2022-01-10 02:03:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:03:56,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:56,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:56,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:03:56,873 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:56,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1317229704, now seen corresponding path program 1 times [2022-01-10 02:03:56,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:56,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487707811] [2022-01-10 02:03:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:56,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:56,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:03:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:03:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:56,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:03:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:03:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:57,010 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 02:03:57,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:57,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487707811] [2022-01-10 02:03:57,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487707811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:57,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:57,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:03:57,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568250035] [2022-01-10 02:03:57,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:57,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:03:57,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:03:57,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:03:57,012 INFO L87 Difference]: Start difference. First operand 5350 states and 9051 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:00,491 INFO L93 Difference]: Finished difference Result 13610 states and 22331 transitions. [2022-01-10 02:04:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:00,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:04:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:00,519 INFO L225 Difference]: With dead ends: 13610 [2022-01-10 02:04:00,520 INFO L226 Difference]: Without dead ends: 10401 [2022-01-10 02:04:00,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:00,531 INFO L933 BasicCegarLoop]: 4960 mSDtfsCounter, 5539 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5558 SdHoareTripleChecker+Valid, 22708 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:00,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5558 Valid, 22708 Invalid, 3204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-10 02:04:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10401 states. [2022-01-10 02:04:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10401 to 8186. [2022-01-10 02:04:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8186 states, 7702 states have (on average 1.6512594131394442) internal successors, (12718), 7721 states have internal predecessors, (12718), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-01-10 02:04:00,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8186 states to 8186 states and 13541 transitions. [2022-01-10 02:04:00,892 INFO L78 Accepts]: Start accepts. Automaton has 8186 states and 13541 transitions. Word has length 179 [2022-01-10 02:04:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:00,896 INFO L470 AbstractCegarLoop]: Abstraction has 8186 states and 13541 transitions. [2022-01-10 02:04:00,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 8186 states and 13541 transitions. [2022-01-10 02:04:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:04:00,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:00,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:00,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:04:00,900 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1531156726, now seen corresponding path program 1 times [2022-01-10 02:04:00,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:00,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385059193] [2022-01-10 02:04:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:00,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:04:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:04:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:04:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:04:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:01,017 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 02:04:01,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:01,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385059193] [2022-01-10 02:04:01,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385059193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:01,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:01,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:01,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336181190] [2022-01-10 02:04:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:01,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:01,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:01,019 INFO L87 Difference]: Start difference. First operand 8186 states and 13541 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:04,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:04,790 INFO L93 Difference]: Finished difference Result 24032 states and 39027 transitions. [2022-01-10 02:04:04,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:04,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:04:04,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:04,845 INFO L225 Difference]: With dead ends: 24032 [2022-01-10 02:04:04,845 INFO L226 Difference]: Without dead ends: 17987 [2022-01-10 02:04:04,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:04,862 INFO L933 BasicCegarLoop]: 4955 mSDtfsCounter, 5538 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5557 SdHoareTripleChecker+Valid, 22703 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:04,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5557 Valid, 22703 Invalid, 3196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:04:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17987 states. [2022-01-10 02:04:05,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17987 to 13871. [2022-01-10 02:04:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13871 states, 12939 states have (on average 1.6168173738310534) internal successors, (20920), 12974 states have internal predecessors, (20920), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-01-10 02:04:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13871 states to 13871 states and 22593 transitions. [2022-01-10 02:04:05,661 INFO L78 Accepts]: Start accepts. Automaton has 13871 states and 22593 transitions. Word has length 179 [2022-01-10 02:04:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:05,661 INFO L470 AbstractCegarLoop]: Abstraction has 13871 states and 22593 transitions. [2022-01-10 02:04:05,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13871 states and 22593 transitions. [2022-01-10 02:04:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:04:05,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:05,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:05,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:04:05,668 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:05,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1840643144, now seen corresponding path program 1 times [2022-01-10 02:04:05,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:05,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780683020] [2022-01-10 02:04:05,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:05,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:04:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:04:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:04:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:04:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:05,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780683020] [2022-01-10 02:04:05,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780683020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:05,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:05,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:05,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666561742] [2022-01-10 02:04:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:05,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:05,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:05,808 INFO L87 Difference]: Start difference. First operand 13871 states and 22593 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:08,344 INFO L93 Difference]: Finished difference Result 29968 states and 48786 transitions. [2022-01-10 02:04:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:04:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:04:08,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:08,399 INFO L225 Difference]: With dead ends: 29968 [2022-01-10 02:04:08,400 INFO L226 Difference]: Without dead ends: 18238 [2022-01-10 02:04:08,429 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 02:04:08,431 INFO L933 BasicCegarLoop]: 4597 mSDtfsCounter, 5089 mSDsluCounter, 16780 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 21377 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:08,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5109 Valid, 21377 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18238 states. [2022-01-10 02:04:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18238 to 13871. [2022-01-10 02:04:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13871 states, 12939 states have (on average 1.6142669448952778) internal successors, (20887), 12974 states have internal predecessors, (20887), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-01-10 02:04:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13871 states to 13871 states and 22560 transitions. [2022-01-10 02:04:09,316 INFO L78 Accepts]: Start accepts. Automaton has 13871 states and 22560 transitions. Word has length 179 [2022-01-10 02:04:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:09,316 INFO L470 AbstractCegarLoop]: Abstraction has 13871 states and 22560 transitions. [2022-01-10 02:04:09,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 13871 states and 22560 transitions. [2022-01-10 02:04:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:04:09,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:09,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:09,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:04:09,326 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:09,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:09,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2068461750, now seen corresponding path program 1 times [2022-01-10 02:04:09,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:09,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726418026] [2022-01-10 02:04:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:09,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:04:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:04:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:04:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:04:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:09,460 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 02:04:09,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:09,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726418026] [2022-01-10 02:04:09,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726418026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:09,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:09,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:09,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342382162] [2022-01-10 02:04:09,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:09,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:09,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:09,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:09,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:09,462 INFO L87 Difference]: Start difference. First operand 13871 states and 22560 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:14,514 INFO L93 Difference]: Finished difference Result 44841 states and 72377 transitions. [2022-01-10 02:04:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:04:14,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:14,634 INFO L225 Difference]: With dead ends: 44841 [2022-01-10 02:04:14,634 INFO L226 Difference]: Without dead ends: 33111 [2022-01-10 02:04:14,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:14,671 INFO L933 BasicCegarLoop]: 4944 mSDtfsCounter, 5530 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5549 SdHoareTripleChecker+Valid, 22692 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:14,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5549 Valid, 22692 Invalid, 3169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:04:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33111 states. [2022-01-10 02:04:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33111 to 25305. [2022-01-10 02:04:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25305 states, 23477 states have (on average 1.5904502278826085) internal successors, (37339), 23544 states have internal predecessors, (37339), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-01-10 02:04:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25305 states to 25305 states and 40874 transitions. [2022-01-10 02:04:16,353 INFO L78 Accepts]: Start accepts. Automaton has 25305 states and 40874 transitions. Word has length 179 [2022-01-10 02:04:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:16,353 INFO L470 AbstractCegarLoop]: Abstraction has 25305 states and 40874 transitions. [2022-01-10 02:04:16,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 25305 states and 40874 transitions. [2022-01-10 02:04:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:04:16,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:16,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:16,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:04:16,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:16,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:16,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1961858056, now seen corresponding path program 1 times [2022-01-10 02:04:16,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:16,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622709525] [2022-01-10 02:04:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:16,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:04:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:04:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:04:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:04:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:16,481 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 02:04:16,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:16,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622709525] [2022-01-10 02:04:16,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622709525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:16,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:16,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:16,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631047681] [2022-01-10 02:04:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:16,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:16,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:16,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:16,482 INFO L87 Difference]: Start difference. First operand 25305 states and 40874 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:23,959 INFO L93 Difference]: Finished difference Result 86529 states and 139953 transitions. [2022-01-10 02:04:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2022-01-10 02:04:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:24,160 INFO L225 Difference]: With dead ends: 86529 [2022-01-10 02:04:24,160 INFO L226 Difference]: Without dead ends: 63365 [2022-01-10 02:04:24,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:24,219 INFO L933 BasicCegarLoop]: 4939 mSDtfsCounter, 5529 mSDsluCounter, 17748 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 22687 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:24,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5548 Valid, 22687 Invalid, 3161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 02:04:24,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63365 states.