/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:42:22,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:42:22,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:42:22,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 21:42:22,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:42:22,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:42:22,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:42:22,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:42:22,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:42:22,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:42:22,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:42:22,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:42:22,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:42:22,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:42:22,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:42:22,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:42:22,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:42:22,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:42:22,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:42:22,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:42:22,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:42:22,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:42:22,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:42:22,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:42:22,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:42:22,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:42:22,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:42:22,811 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:42:22,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:42:22,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:42:22,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:42:22,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:42:22,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:42:22,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:42:22,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:42:22,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:42:22,817 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:42:22,817 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:42:22,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:42:23,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:42:23,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:42:23,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:42:23,018 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:42:23,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c [2022-01-10 21:42:23,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429fe4eb/e66d1e8576f24a89bb4938ec1964a8c1/FLAG8732ede1e [2022-01-10 21:42:23,411 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:42:23,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c [2022-01-10 21:42:23,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429fe4eb/e66d1e8576f24a89bb4938ec1964a8c1/FLAG8732ede1e [2022-01-10 21:42:23,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429fe4eb/e66d1e8576f24a89bb4938ec1964a8c1 [2022-01-10 21:42:23,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:42:23,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:42:23,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:42:23,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:42:23,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:42:23,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:42:23" (1/1) ... [2022-01-10 21:42:23,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46416cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:23, skipping insertion in model container [2022-01-10 21:42:23,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:42:23" (1/1) ... [2022-01-10 21:42:23,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:42:23,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:42:24,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-01-10 21:42:24,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:42:24,032 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:42:24,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-01-10 21:42:24,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:42:24,056 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:42:24,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24 WrapperNode [2022-01-10 21:42:24,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:42:24,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:42:24,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:42:24,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:42:24,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,090 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-01-10 21:42:24,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:42:24,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:42:24,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:42:24,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:42:24,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:42:24,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:42:24,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:42:24,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:42:24,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:42:24,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:42:24,169 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 21:42:24,190 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 21:42:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:42:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:42:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:42:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:42:24,266 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:42:24,267 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:42:24,372 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:42:24,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:42:24,377 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 21:42:24,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:42:24 BoogieIcfgContainer [2022-01-10 21:42:24,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:42:24,379 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:42:24,379 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:42:24,381 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:42:24,390 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:42:24" (1/1) ... [2022-01-10 21:42:24,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:42:24 BasicIcfg [2022-01-10 21:42:24,462 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:42:24,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:42:24,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:42:24,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:42:24,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:42:23" (1/4) ... [2022-01-10 21:42:24,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:42:24, skipping insertion in model container [2022-01-10 21:42:24,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:42:24" (2/4) ... [2022-01-10 21:42:24,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:42:24, skipping insertion in model container [2022-01-10 21:42:24,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:42:24" (3/4) ... [2022-01-10 21:42:24,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:42:24, skipping insertion in model container [2022-01-10 21:42:24,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:42:24" (4/4) ... [2022-01-10 21:42:24,469 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.cTransformedIcfg [2022-01-10 21:42:24,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:42:24,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 21:42:24,508 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:42:24,513 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 21:42:24,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 21:42:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-10 21:42:24,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:24,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-10 21:42:24,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:24,533 INFO L85 PathProgramCache]: Analyzing trace with hash 128865006, now seen corresponding path program 1 times [2022-01-10 21:42:24,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:24,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600720724] [2022-01-10 21:42:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:24,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:24,726 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 21:42:24,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:24,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600720724] [2022-01-10 21:42:24,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600720724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:24,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:24,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:24,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325170257] [2022-01-10 21:42:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:24,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:24,757 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:24,829 INFO L93 Difference]: Finished difference Result 65 states and 109 transitions. [2022-01-10 21:42:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:24,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-01-10 21:42:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:24,847 INFO L225 Difference]: With dead ends: 65 [2022-01-10 21:42:24,847 INFO L226 Difference]: Without dead ends: 35 [2022-01-10 21:42:24,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:24,853 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:24,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 53 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:24,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-10 21:42:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-01-10 21:42:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2022-01-10 21:42:24,884 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 5 [2022-01-10 21:42:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:24,884 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2022-01-10 21:42:24,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2022-01-10 21:42:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 21:42:24,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:24,885 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:42:24,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:42:24,886 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:24,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1470938109, now seen corresponding path program 1 times [2022-01-10 21:42:24,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:24,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508861234] [2022-01-10 21:42:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:24,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:42:24,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:24,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508861234] [2022-01-10 21:42:24,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508861234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:24,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:24,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:24,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210160493] [2022-01-10 21:42:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:24,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:24,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:24,948 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:24,985 INFO L93 Difference]: Finished difference Result 82 states and 116 transitions. [2022-01-10 21:42:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:24,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 21:42:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:24,987 INFO L225 Difference]: With dead ends: 82 [2022-01-10 21:42:24,987 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 21:42:24,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:24,989 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:24,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 40 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 21:42:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-01-10 21:42:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2022-01-10 21:42:24,999 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 10 [2022-01-10 21:42:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:24,999 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2022-01-10 21:42:24,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2022-01-10 21:42:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 21:42:25,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:25,000 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:42:25,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:42:25,001 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1470967900, now seen corresponding path program 1 times [2022-01-10 21:42:25,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:25,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177323314] [2022-01-10 21:42:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:25,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:42:25,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:25,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177323314] [2022-01-10 21:42:25,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177323314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:25,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:25,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:25,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329811877] [2022-01-10 21:42:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:25,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:25,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,088 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:25,143 INFO L93 Difference]: Finished difference Result 89 states and 124 transitions. [2022-01-10 21:42:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 21:42:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:25,144 INFO L225 Difference]: With dead ends: 89 [2022-01-10 21:42:25,144 INFO L226 Difference]: Without dead ends: 66 [2022-01-10 21:42:25,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,146 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:25,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-10 21:42:25,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-01-10 21:42:25,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2022-01-10 21:42:25,158 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 10 [2022-01-10 21:42:25,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:25,158 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2022-01-10 21:42:25,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,158 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2022-01-10 21:42:25,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 21:42:25,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:25,159 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:42:25,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 21:42:25,160 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:25,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash -167775417, now seen corresponding path program 1 times [2022-01-10 21:42:25,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:25,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212728632] [2022-01-10 21:42:25,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:25,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:25,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 21:42:25,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:25,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212728632] [2022-01-10 21:42:25,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212728632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:25,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:25,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:25,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406732468] [2022-01-10 21:42:25,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:25,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:25,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:25,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,201 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:25,242 INFO L93 Difference]: Finished difference Result 133 states and 181 transitions. [2022-01-10 21:42:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:25,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 21:42:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:25,244 INFO L225 Difference]: With dead ends: 133 [2022-01-10 21:42:25,244 INFO L226 Difference]: Without dead ends: 89 [2022-01-10 21:42:25,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,246 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:25,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 37 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-01-10 21:42:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-01-10 21:42:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 117 transitions. [2022-01-10 21:42:25,266 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 117 transitions. Word has length 17 [2022-01-10 21:42:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:25,267 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 117 transitions. [2022-01-10 21:42:25,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 117 transitions. [2022-01-10 21:42:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 21:42:25,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:25,269 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:42:25,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 21:42:25,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:25,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:25,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1146291088, now seen corresponding path program 1 times [2022-01-10 21:42:25,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:25,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967118024] [2022-01-10 21:42:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:25,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 21:42:25,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:25,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967118024] [2022-01-10 21:42:25,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967118024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:25,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:25,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:25,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432813606] [2022-01-10 21:42:25,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:25,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:25,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:25,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:25,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,382 INFO L87 Difference]: Start difference. First operand 87 states and 117 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:25,436 INFO L93 Difference]: Finished difference Result 176 states and 236 transitions. [2022-01-10 21:42:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 21:42:25,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:25,443 INFO L225 Difference]: With dead ends: 176 [2022-01-10 21:42:25,444 INFO L226 Difference]: Without dead ends: 72 [2022-01-10 21:42:25,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,445 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:25,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:25,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-01-10 21:42:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2022-01-10 21:42:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 69 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2022-01-10 21:42:25,454 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 20 [2022-01-10 21:42:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:25,454 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2022-01-10 21:42:25,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2022-01-10 21:42:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:42:25,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:25,463 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:42:25,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 21:42:25,464 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:42:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:25,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1443586898, now seen corresponding path program 1 times [2022-01-10 21:42:25,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:25,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194199036] [2022-01-10 21:42:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:25,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 21:42:25,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:25,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194199036] [2022-01-10 21:42:25,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194199036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:25,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:25,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:42:25,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012466772] [2022-01-10 21:42:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:25,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:42:25,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:25,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:42:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,527 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:25,537 INFO L93 Difference]: Finished difference Result 120 states and 142 transitions. [2022-01-10 21:42:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:42:25,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-10 21:42:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:25,538 INFO L225 Difference]: With dead ends: 120 [2022-01-10 21:42:25,538 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 21:42:25,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:42:25,540 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:25,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 21:42:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 21:42:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 21:42:25,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-01-10 21:42:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:25,542 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 21:42:25,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:42:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 21:42:25,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 21:42:25,545 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 21:42:25,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 21:42:25,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 21:42:25,726 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 21:42:25,726 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 21:42:25,726 INFO L854 garLoopResultBuilder]: At program point L111(lines 29 146) the Hoare annotation is: (or (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 3) (not (= |ULTIMATE.start_ULTIMATE.start_main_~s__hit~0#1Int| 0)) (<= (div |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int| 2147483648) 0) (<= 8640 |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int|)) (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2) (< 0 (+ 1 (div |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2147483648))))) [2022-01-10 21:42:25,726 INFO L861 garLoopResultBuilder]: At program point L148(lines 20 152) the Hoare annotation is: true [2022-01-10 21:42:25,727 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-01-10 21:42:25,727 INFO L861 garLoopResultBuilder]: At program point L151(lines 20 152) the Hoare annotation is: true [2022-01-10 21:42:25,727 INFO L854 garLoopResultBuilder]: At program point L108(lines 20 152) the Hoare annotation is: false [2022-01-10 21:42:25,727 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 139) no Hoare annotation was computed. [2022-01-10 21:42:25,727 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 21:42:25,727 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 150) no Hoare annotation was computed. [2022-01-10 21:42:25,728 INFO L854 garLoopResultBuilder]: At program point L37(lines 36 139) the Hoare annotation is: (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2) (< 0 (+ 1 (div |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2147483648)))) [2022-01-10 21:42:25,728 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 136) no Hoare annotation was computed. [2022-01-10 21:42:25,728 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 21:42:25,728 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 65 118) no Hoare annotation was computed. [2022-01-10 21:42:25,728 INFO L854 garLoopResultBuilder]: At program point L42(lines 41 136) the Hoare annotation is: (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2) (< 0 (+ 1 (div |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2147483648)))) [2022-01-10 21:42:25,728 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 122) no Hoare annotation was computed. [2022-01-10 21:42:25,728 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 85) no Hoare annotation was computed. [2022-01-10 21:42:25,729 INFO L854 garLoopResultBuilder]: At program point L58(lines 57 122) the Hoare annotation is: (let ((.cse0 (<= (div |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int| 2147483648) 0)) (.cse1 (<= 8640 |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int|))) (or (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2) (< 0 (+ 1 (div |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2147483648))) .cse0 .cse1) (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 3) (not (= |ULTIMATE.start_ULTIMATE.start_main_~s__hit~0#1Int| 0)) .cse0 .cse1))) [2022-01-10 21:42:25,729 INFO L858 garLoopResultBuilder]: For program point L61(lines 61 120) no Hoare annotation was computed. [2022-01-10 21:42:25,729 INFO L858 garLoopResultBuilder]: For program point L89-1(lines 65 118) no Hoare annotation was computed. [2022-01-10 21:42:25,729 INFO L854 garLoopResultBuilder]: At program point L62(lines 61 120) the Hoare annotation is: (let ((.cse0 (<= (div |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int| 2147483648) 0)) (.cse1 (<= 8656 |ULTIMATE.start_ULTIMATE.start_main_~s__state~0#1Int|))) (or (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2) (< 0 (+ 1 (div |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 2147483648))) .cse0 .cse1) (and (<= |ULTIMATE.start_ULTIMATE.start_main_~blastFlag~0#1Int| 3) (not (= |ULTIMATE.start_ULTIMATE.start_main_~s__hit~0#1Int| 0)) .cse0 .cse1))) [2022-01-10 21:42:25,729 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 65 118) no Hoare annotation was computed. [2022-01-10 21:42:25,729 INFO L858 garLoopResultBuilder]: For program point L104-1(lines 65 118) no Hoare annotation was computed. [2022-01-10 21:42:25,729 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 109) no Hoare annotation was computed. [2022-01-10 21:42:25,732 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 21:42:25,733 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 21:42:25,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:42:25 BasicIcfg [2022-01-10 21:42:25,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 21:42:25,771 INFO L158 Benchmark]: Toolchain (without parser) took 1933.39ms. Allocated memory is still 198.2MB. Free memory was 147.0MB in the beginning and 72.6MB in the end (delta: 74.5MB). Peak memory consumption was 74.7MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,771 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:42:25,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.37ms. Allocated memory is still 198.2MB. Free memory was 146.9MB in the beginning and 173.7MB in the end (delta: -26.9MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.05ms. Allocated memory is still 198.2MB. Free memory was 173.7MB in the beginning and 171.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,773 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 198.2MB. Free memory was 171.9MB in the beginning and 170.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,773 INFO L158 Benchmark]: RCFGBuilder took 254.62ms. Allocated memory is still 198.2MB. Free memory was 170.6MB in the beginning and 160.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,773 INFO L158 Benchmark]: IcfgTransformer took 82.81ms. Allocated memory is still 198.2MB. Free memory was 160.6MB in the beginning and 157.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,774 INFO L158 Benchmark]: TraceAbstraction took 1307.25ms. Allocated memory is still 198.2MB. Free memory was 156.4MB in the beginning and 72.6MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2022-01-10 21:42:25,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.37ms. Allocated memory is still 198.2MB. Free memory was 146.9MB in the beginning and 173.7MB in the end (delta: -26.9MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.05ms. Allocated memory is still 198.2MB. Free memory was 173.7MB in the beginning and 171.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 198.2MB. Free memory was 171.9MB in the beginning and 170.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 254.62ms. Allocated memory is still 198.2MB. Free memory was 170.6MB in the beginning and 160.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 82.81ms. Allocated memory is still 198.2MB. Free memory was 160.6MB in the beginning and 157.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1307.25ms. Allocated memory is still 198.2MB. Free memory was 156.4MB in the beginning and 72.6MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 150]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 164 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 33 NumberOfFragments, 125 HoareAnnotationTreeSize, 8 FomulaSimplifications, 114 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 241 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((~bvule32(blastFlag, 3bv32) && ~bvule32(8656bv32, s__state)) && ~bvule1(s__state[31:31], 0bv1)) && !(s__hit == 0bv32)) || (((~bvult64(0bv2, ~bvadd32(1bv2, ~zero_extendFrom1To2(blastFlag[31:31]))) && ~bvule32(8656bv32, s__state)) && ~bvule1(s__state[31:31], 0bv1)) && ~bvule32(blastFlag, 2bv32)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((~bvule32(blastFlag, 3bv32) && ~bvule32(8640bv32, s__state)) && ~bvule1(s__state[31:31], 0bv1)) && !(s__hit == 0bv32)) || (~bvult64(0bv2, ~bvadd32(1bv2, ~zero_extendFrom1To2(blastFlag[31:31]))) && ~bvule32(blastFlag, 2bv32)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (((~bvule32(blastFlag, 3bv32) && ~bvule32(8640bv32, s__state)) && ~bvule1(s__state[31:31], 0bv1)) && !(s__hit == 0bv32)) || (((~bvult64(0bv2, ~bvadd32(1bv2, ~zero_extendFrom1To2(blastFlag[31:31]))) && ~bvule32(8640bv32, s__state)) && ~bvule1(s__state[31:31], 0bv1)) && ~bvule32(blastFlag, 2bv32)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ~bvult64(0bv2, ~bvadd32(1bv2, ~zero_extendFrom1To2(blastFlag[31:31]))) && ~bvule32(blastFlag, 2bv32) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ~bvult64(0bv2, ~bvadd32(1bv2, ~zero_extendFrom1To2(blastFlag[31:31]))) && ~bvule32(blastFlag, 2bv32) RESULT: Ultimate proved your program to be correct! [2022-01-10 21:42:25,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...