/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_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:12:29,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:12:29,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:12:29,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 14:12:29,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:12:29,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:12:29,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:12:29,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:12:29,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:12:29,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:12:29,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:12:29,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:12:29,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:12:29,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:12:29,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:12:29,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:12:29,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 14:12:29,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 14:12:29,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:12:29,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:12:29,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:12:29,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:12:29,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:12:29,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:12:29,641 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:12:29,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:12:29,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:12:29,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:12:29,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:12:29,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:12:29,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:12:29,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:12:29,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:12:29,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:12:29,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:12:29,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:12:29,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:12:29,646 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:12:29,646 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:12:29,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:12:29,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:12:29,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:12:29,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:12:29,918 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:12:29,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2022-01-10 14:12:29,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1dd8ae1d/ca1b2f848b444c939a4cdeea1cfb20a7/FLAG49a14aed2 [2022-01-10 14:12:30,461 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:12:30,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.07.cil-2.c [2022-01-10 14:12:30,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1dd8ae1d/ca1b2f848b444c939a4cdeea1cfb20a7/FLAG49a14aed2 [2022-01-10 14:12:30,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1dd8ae1d/ca1b2f848b444c939a4cdeea1cfb20a7 [2022-01-10 14:12:30,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:12:30,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:12:30,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:12:30,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:12:30,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:12:30,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:12:30" (1/1) ... [2022-01-10 14:12:30,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c3e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:30, skipping insertion in model container [2022-01-10 14:12:30,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:12:30" (1/1) ... [2022-01-10 14:12:30,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:12:31,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:12:31,196 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/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2022-01-10 14:12:31,265 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/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2022-01-10 14:12:31,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:12:31,374 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:12:31,386 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/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[914,927] [2022-01-10 14:12:31,424 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/pc_sfifo_2.cil-1+token_ring.07.cil-2.c[7115,7128] [2022-01-10 14:12:31,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:12:31,497 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:12:31,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31 WrapperNode [2022-01-10 14:12:31,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:12:31,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:12:31,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:12:31,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:12:31,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,611 INFO L137 Inliner]: procedures = 68, calls = 79, calls flagged for inlining = 74, calls inlined = 162, statements flattened = 2302 [2022-01-10 14:12:31,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:12:31,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:12:31,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:12:31,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:12:31,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:12:31,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:12:31,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:12:31,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:12:31,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (1/1) ... [2022-01-10 14:12:31,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:12:31,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:12:31,769 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 14:12:31,780 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 14:12:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:12:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:12:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:12:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:12:32,073 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:12:32,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:12:33,794 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:12:33,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:12:33,812 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-10 14:12:33,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:12:33 BoogieIcfgContainer [2022-01-10 14:12:33,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:12:33,816 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:12:33,816 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:12:33,817 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:12:33,820 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:12:33" (1/1) ... [2022-01-10 14:12:34,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:12:34 BasicIcfg [2022-01-10 14:12:34,178 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:12:34,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:12:34,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:12:34,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:12:34,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:12:30" (1/4) ... [2022-01-10 14:12:34,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bdc1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:12:34, skipping insertion in model container [2022-01-10 14:12:34,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:12:31" (2/4) ... [2022-01-10 14:12:34,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bdc1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:12:34, skipping insertion in model container [2022-01-10 14:12:34,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:12:33" (3/4) ... [2022-01-10 14:12:34,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bdc1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:12:34, skipping insertion in model container [2022-01-10 14:12:34,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:12:34" (4/4) ... [2022-01-10 14:12:34,185 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.07.cil-2.cTransformedIcfg [2022-01-10 14:12:34,190 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:12:34,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 14:12:34,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:12:34,238 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 14:12:34,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 14:12:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 943 states have (on average 1.528101802757158) internal successors, (1441), 947 states have internal predecessors, (1441), 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 14:12:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 14:12:34,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:34,277 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] [2022-01-10 14:12:34,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:34,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash -33484660, now seen corresponding path program 1 times [2022-01-10 14:12:34,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:34,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386220349] [2022-01-10 14:12:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:34,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:34,582 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 14:12:34,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:34,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386220349] [2022-01-10 14:12:34,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386220349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:34,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:34,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:34,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105105002] [2022-01-10 14:12:34,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:34,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:34,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:34,654 INFO L87 Difference]: Start difference. First operand has 948 states, 943 states have (on average 1.528101802757158) internal successors, (1441), 947 states have internal predecessors, (1441), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 14:12:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:34,864 INFO L93 Difference]: Finished difference Result 1876 states and 2843 transitions. [2022-01-10 14:12:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:34,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2022-01-10 14:12:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:34,882 INFO L225 Difference]: With dead ends: 1876 [2022-01-10 14:12:34,882 INFO L226 Difference]: Without dead ends: 1031 [2022-01-10 14:12:34,888 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 14:12:34,890 INFO L933 BasicCegarLoop]: 1399 mSDtfsCounter, 124 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:34,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 2770 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-01-10 14:12:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1027. [2022-01-10 14:12:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1023 states have (on average 1.4848484848484849) internal successors, (1519), 1026 states have internal predecessors, (1519), 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 14:12:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1519 transitions. [2022-01-10 14:12:34,966 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1519 transitions. Word has length 44 [2022-01-10 14:12:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:34,966 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1519 transitions. [2022-01-10 14:12:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 14:12:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1519 transitions. [2022-01-10 14:12:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 14:12:34,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:34,969 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] [2022-01-10 14:12:34,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:12:34,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash 327256590, now seen corresponding path program 1 times [2022-01-10 14:12:34,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:34,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891977118] [2022-01-10 14:12:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:34,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:35,075 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 14:12:35,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891977118] [2022-01-10 14:12:35,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891977118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:35,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:35,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:35,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836621604] [2022-01-10 14:12:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:35,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:35,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:35,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:35,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:35,079 INFO L87 Difference]: Start difference. First operand 1027 states and 1519 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 14:12:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:35,150 INFO L93 Difference]: Finished difference Result 1313 states and 1917 transitions. [2022-01-10 14:12:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:35,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2022-01-10 14:12:35,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:35,155 INFO L225 Difference]: With dead ends: 1313 [2022-01-10 14:12:35,156 INFO L226 Difference]: Without dead ends: 1183 [2022-01-10 14:12:35,159 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 14:12:35,160 INFO L933 BasicCegarLoop]: 1394 mSDtfsCounter, 1357 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:35,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 1512 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:35,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-01-10 14:12:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1179. [2022-01-10 14:12:35,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 1175 states have (on average 1.4680851063829787) internal successors, (1725), 1178 states have internal predecessors, (1725), 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 14:12:35,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1725 transitions. [2022-01-10 14:12:35,209 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1725 transitions. Word has length 44 [2022-01-10 14:12:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:35,210 INFO L470 AbstractCegarLoop]: Abstraction has 1179 states and 1725 transitions. [2022-01-10 14:12:35,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 14:12:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1725 transitions. [2022-01-10 14:12:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 14:12:35,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:35,217 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] [2022-01-10 14:12:35,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:12:35,218 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:35,219 INFO L85 PathProgramCache]: Analyzing trace with hash 977771419, now seen corresponding path program 1 times [2022-01-10 14:12:35,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:35,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761526396] [2022-01-10 14:12:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:35,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:35,285 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 14:12:35,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:35,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761526396] [2022-01-10 14:12:35,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761526396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:35,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:35,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:35,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652536679] [2022-01-10 14:12:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:35,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:35,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:35,288 INFO L87 Difference]: Start difference. First operand 1179 states and 1725 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 14:12:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:35,340 INFO L93 Difference]: Finished difference Result 1671 states and 2403 transitions. [2022-01-10 14:12:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-01-10 14:12:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:35,347 INFO L225 Difference]: With dead ends: 1671 [2022-01-10 14:12:35,347 INFO L226 Difference]: Without dead ends: 1397 [2022-01-10 14:12:35,348 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 14:12:35,349 INFO L933 BasicCegarLoop]: 1391 mSDtfsCounter, 1347 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:35,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1347 Valid, 1480 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-01-10 14:12:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1373. [2022-01-10 14:12:35,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1369 states have (on average 1.4470416362308254) internal successors, (1981), 1372 states have internal predecessors, (1981), 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 14:12:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1981 transitions. [2022-01-10 14:12:35,460 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1981 transitions. Word has length 45 [2022-01-10 14:12:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:35,460 INFO L470 AbstractCegarLoop]: Abstraction has 1373 states and 1981 transitions. [2022-01-10 14:12:35,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 14:12:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1981 transitions. [2022-01-10 14:12:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 14:12:35,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:35,462 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] [2022-01-10 14:12:35,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:12:35,462 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:35,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash 948188956, now seen corresponding path program 1 times [2022-01-10 14:12:35,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:35,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577940355] [2022-01-10 14:12:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:35,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:35,525 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 14:12:35,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:35,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577940355] [2022-01-10 14:12:35,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577940355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:35,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:35,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:35,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008399477] [2022-01-10 14:12:35,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:35,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:35,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:35,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:35,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:35,528 INFO L87 Difference]: Start difference. First operand 1373 states and 1981 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 14:12:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:35,631 INFO L93 Difference]: Finished difference Result 2307 states and 3257 transitions. [2022-01-10 14:12:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:35,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-01-10 14:12:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:35,641 INFO L225 Difference]: With dead ends: 2307 [2022-01-10 14:12:35,641 INFO L226 Difference]: Without dead ends: 1778 [2022-01-10 14:12:35,644 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 14:12:35,653 INFO L933 BasicCegarLoop]: 1387 mSDtfsCounter, 91 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:35,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 2720 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-01-10 14:12:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1758. [2022-01-10 14:12:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1754 states have (on average 1.4213226909920182) internal successors, (2493), 1757 states have internal predecessors, (2493), 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 14:12:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2493 transitions. [2022-01-10 14:12:35,722 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2493 transitions. Word has length 45 [2022-01-10 14:12:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:35,723 INFO L470 AbstractCegarLoop]: Abstraction has 1758 states and 2493 transitions. [2022-01-10 14:12:35,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 14:12:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2493 transitions. [2022-01-10 14:12:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 14:12:35,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:35,724 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] [2022-01-10 14:12:35,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 14:12:35,724 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:35,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:35,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1672420905, now seen corresponding path program 1 times [2022-01-10 14:12:35,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:35,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796596478] [2022-01-10 14:12:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:35,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:35,829 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 14:12:35,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:35,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796596478] [2022-01-10 14:12:35,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796596478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:35,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:35,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:35,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866503647] [2022-01-10 14:12:35,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:35,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:35,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:35,832 INFO L87 Difference]: Start difference. First operand 1758 states and 2493 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:35,912 INFO L93 Difference]: Finished difference Result 2961 states and 4106 transitions. [2022-01-10 14:12:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:35,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 14:12:35,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:35,922 INFO L225 Difference]: With dead ends: 2961 [2022-01-10 14:12:35,923 INFO L226 Difference]: Without dead ends: 2077 [2022-01-10 14:12:35,925 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 14:12:35,928 INFO L933 BasicCegarLoop]: 1393 mSDtfsCounter, 1342 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:35,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 1482 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-01-10 14:12:35,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2055. [2022-01-10 14:12:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 2051 states have (on average 1.4032179424670892) internal successors, (2878), 2054 states have internal predecessors, (2878), 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 14:12:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2878 transitions. [2022-01-10 14:12:36,002 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2878 transitions. Word has length 51 [2022-01-10 14:12:36,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:36,005 INFO L470 AbstractCegarLoop]: Abstraction has 2055 states and 2878 transitions. [2022-01-10 14:12:36,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2878 transitions. [2022-01-10 14:12:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 14:12:36,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:36,012 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:36,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 14:12:36,012 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash -994883660, now seen corresponding path program 1 times [2022-01-10 14:12:36,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:36,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412060680] [2022-01-10 14:12:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:36,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:12:36,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:36,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412060680] [2022-01-10 14:12:36,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412060680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:36,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:36,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:12:36,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081062730] [2022-01-10 14:12:36,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:36,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:12:36,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:36,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:12:36,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:36,135 INFO L87 Difference]: Start difference. First operand 2055 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:36,330 INFO L93 Difference]: Finished difference Result 3681 states and 5082 transitions. [2022-01-10 14:12:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:12:36,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 14:12:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:36,343 INFO L225 Difference]: With dead ends: 3681 [2022-01-10 14:12:36,343 INFO L226 Difference]: Without dead ends: 2730 [2022-01-10 14:12:36,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:12:36,349 INFO L933 BasicCegarLoop]: 1382 mSDtfsCounter, 395 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 5479 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:36,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 5479 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:36,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2022-01-10 14:12:36,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2079. [2022-01-10 14:12:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2075 states have (on average 1.3898795180722892) internal successors, (2884), 2078 states have internal predecessors, (2884), 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 14:12:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2884 transitions. [2022-01-10 14:12:36,462 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2884 transitions. Word has length 52 [2022-01-10 14:12:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:36,463 INFO L470 AbstractCegarLoop]: Abstraction has 2079 states and 2884 transitions. [2022-01-10 14:12:36,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2884 transitions. [2022-01-10 14:12:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 14:12:36,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:36,464 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:36,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 14:12:36,465 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:36,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash 955416595, now seen corresponding path program 1 times [2022-01-10 14:12:36,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:36,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624691596] [2022-01-10 14:12:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:36,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:12:36,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624691596] [2022-01-10 14:12:36,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624691596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:36,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:36,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:12:36,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147494036] [2022-01-10 14:12:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:36,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:12:36,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:36,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:12:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:36,524 INFO L87 Difference]: Start difference. First operand 2079 states and 2884 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:36,742 INFO L93 Difference]: Finished difference Result 3834 states and 5233 transitions. [2022-01-10 14:12:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:12:36,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 14:12:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:36,755 INFO L225 Difference]: With dead ends: 3834 [2022-01-10 14:12:36,755 INFO L226 Difference]: Without dead ends: 2669 [2022-01-10 14:12:36,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:12:36,759 INFO L933 BasicCegarLoop]: 1381 mSDtfsCounter, 354 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 5653 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:36,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 5653 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-01-10 14:12:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2097. [2022-01-10 14:12:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2093 states have (on average 1.3769708552317248) internal successors, (2882), 2096 states have internal predecessors, (2882), 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 14:12:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2882 transitions. [2022-01-10 14:12:36,907 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2882 transitions. Word has length 52 [2022-01-10 14:12:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:36,907 INFO L470 AbstractCegarLoop]: Abstraction has 2097 states and 2882 transitions. [2022-01-10 14:12:36,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:12:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2882 transitions. [2022-01-10 14:12:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 14:12:36,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:36,909 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:36,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 14:12:36,909 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:36,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:36,910 INFO L85 PathProgramCache]: Analyzing trace with hash 966732722, now seen corresponding path program 1 times [2022-01-10 14:12:36,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:36,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620582473] [2022-01-10 14:12:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:36,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:36,997 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 14:12:36,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:36,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620582473] [2022-01-10 14:12:36,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620582473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:36,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:36,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:12:36,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298407687] [2022-01-10 14:12:36,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:36,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:12:36,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:12:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:12:36,999 INFO L87 Difference]: Start difference. First operand 2097 states and 2882 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:12:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:37,175 INFO L93 Difference]: Finished difference Result 2329 states and 3182 transitions. [2022-01-10 14:12:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:12:37,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2022-01-10 14:12:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:37,185 INFO L225 Difference]: With dead ends: 2329 [2022-01-10 14:12:37,185 INFO L226 Difference]: Without dead ends: 2327 [2022-01-10 14:12:37,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:37,188 INFO L933 BasicCegarLoop]: 1390 mSDtfsCounter, 2823 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:37,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2823 Valid, 1478 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:37,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2022-01-10 14:12:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2095. [2022-01-10 14:12:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 2092 states have (on average 1.3733269598470363) internal successors, (2873), 2094 states have internal predecessors, (2873), 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 14:12:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2873 transitions. [2022-01-10 14:12:37,369 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2873 transitions. Word has length 52 [2022-01-10 14:12:37,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:37,370 INFO L470 AbstractCegarLoop]: Abstraction has 2095 states and 2873 transitions. [2022-01-10 14:12:37,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:12:37,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2873 transitions. [2022-01-10 14:12:37,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 14:12:37,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:37,371 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:37,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 14:12:37,372 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -96053897, now seen corresponding path program 1 times [2022-01-10 14:12:37,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:37,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047902169] [2022-01-10 14:12:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:37,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:12:37,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:37,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047902169] [2022-01-10 14:12:37,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047902169] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:12:37,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474385351] [2022-01-10 14:12:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:37,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:12:37,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:12:37,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:12:37,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:12:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:38,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 14:12:38,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:12:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:12:38,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:12:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:12:39,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474385351] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:12:39,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:12:39,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-10 14:12:39,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897153840] [2022-01-10 14:12:39,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:12:39,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 14:12:39,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 14:12:39,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:12:39,162 INFO L87 Difference]: Start difference. First operand 2095 states and 2873 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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 14:12:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:39,800 INFO L93 Difference]: Finished difference Result 4452 states and 5973 transitions. [2022-01-10 14:12:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:12:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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 53 [2022-01-10 14:12:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:39,818 INFO L225 Difference]: With dead ends: 4452 [2022-01-10 14:12:39,819 INFO L226 Difference]: Without dead ends: 4450 [2022-01-10 14:12:39,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:12:39,824 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 4581 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 6362 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:39,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4581 Valid, 6362 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4450 states. [2022-01-10 14:12:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4450 to 3070. [2022-01-10 14:12:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3067 states have (on average 1.354417998043691) internal successors, (4154), 3069 states have internal predecessors, (4154), 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 14:12:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 4154 transitions. [2022-01-10 14:12:40,210 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 4154 transitions. Word has length 53 [2022-01-10 14:12:40,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:40,210 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 4154 transitions. [2022-01-10 14:12:40,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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 14:12:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 4154 transitions. [2022-01-10 14:12:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 14:12:40,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:40,212 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:40,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:12:40,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:12:40,436 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:40,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:40,437 INFO L85 PathProgramCache]: Analyzing trace with hash -589626652, now seen corresponding path program 2 times [2022-01-10 14:12:40,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:40,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823900663] [2022-01-10 14:12:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:40,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:12:40,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:40,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823900663] [2022-01-10 14:12:40,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823900663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:40,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:40,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:40,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692396669] [2022-01-10 14:12:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:40,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:40,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:40,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:40,476 INFO L87 Difference]: Start difference. First operand 3070 states and 4154 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 14:12:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:40,748 INFO L93 Difference]: Finished difference Result 4164 states and 5599 transitions. [2022-01-10 14:12:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2022-01-10 14:12:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:40,757 INFO L225 Difference]: With dead ends: 4164 [2022-01-10 14:12:40,758 INFO L226 Difference]: Without dead ends: 2424 [2022-01-10 14:12:40,761 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 14:12:40,761 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 1336 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:40,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 1569 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-01-10 14:12:40,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2408. [2022-01-10 14:12:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 2405 states have (on average 1.3513513513513513) internal successors, (3250), 2407 states have internal predecessors, (3250), 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 14:12:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3250 transitions. [2022-01-10 14:12:40,943 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3250 transitions. Word has length 56 [2022-01-10 14:12:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:40,943 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3250 transitions. [2022-01-10 14:12:40,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 14:12:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3250 transitions. [2022-01-10 14:12:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 14:12:40,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:40,945 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:40,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 14:12:40,946 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:40,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1937786145, now seen corresponding path program 1 times [2022-01-10 14:12:40,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:40,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592469276] [2022-01-10 14:12:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:40,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:12:40,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:40,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592469276] [2022-01-10 14:12:40,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592469276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:40,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:40,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:40,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876316863] [2022-01-10 14:12:40,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:40,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:40,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:40,998 INFO L87 Difference]: Start difference. First operand 2408 states and 3250 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 14:12:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:41,362 INFO L93 Difference]: Finished difference Result 4895 states and 6398 transitions. [2022-01-10 14:12:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2022-01-10 14:12:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:41,374 INFO L225 Difference]: With dead ends: 4895 [2022-01-10 14:12:41,374 INFO L226 Difference]: Without dead ends: 2793 [2022-01-10 14:12:41,379 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 14:12:41,379 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 89 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:41,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 2848 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2022-01-10 14:12:41,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2793. [2022-01-10 14:12:41,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2790 states have (on average 1.3293906810035843) internal successors, (3709), 2792 states have internal predecessors, (3709), 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 14:12:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3709 transitions. [2022-01-10 14:12:41,614 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3709 transitions. Word has length 60 [2022-01-10 14:12:41,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:41,614 INFO L470 AbstractCegarLoop]: Abstraction has 2793 states and 3709 transitions. [2022-01-10 14:12:41,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 14:12:41,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3709 transitions. [2022-01-10 14:12:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 14:12:41,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:41,616 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:41,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 14:12:41,617 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 954314748, now seen corresponding path program 1 times [2022-01-10 14:12:41,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:41,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217854713] [2022-01-10 14:12:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:41,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:12:41,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217854713] [2022-01-10 14:12:41,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217854713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:41,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:41,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:41,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728896906] [2022-01-10 14:12:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:41,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:41,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:41,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:41,678 INFO L87 Difference]: Start difference. First operand 2793 states and 3709 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 14:12:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:41,919 INFO L93 Difference]: Finished difference Result 4656 states and 6061 transitions. [2022-01-10 14:12:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:41,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 68 [2022-01-10 14:12:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:41,944 INFO L225 Difference]: With dead ends: 4656 [2022-01-10 14:12:41,944 INFO L226 Difference]: Without dead ends: 2793 [2022-01-10 14:12:41,948 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 14:12:41,949 INFO L933 BasicCegarLoop]: 1385 mSDtfsCounter, 1328 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:41,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 1469 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2022-01-10 14:12:42,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2793. [2022-01-10 14:12:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2790 states have (on average 1.3150537634408601) internal successors, (3669), 2792 states have internal predecessors, (3669), 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 14:12:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3669 transitions. [2022-01-10 14:12:42,259 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3669 transitions. Word has length 68 [2022-01-10 14:12:42,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:42,260 INFO L470 AbstractCegarLoop]: Abstraction has 2793 states and 3669 transitions. [2022-01-10 14:12:42,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 14:12:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3669 transitions. [2022-01-10 14:12:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 14:12:42,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:42,263 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:42,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 14:12:42,263 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1472568645, now seen corresponding path program 1 times [2022-01-10 14:12:42,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:42,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788862427] [2022-01-10 14:12:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:42,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:12:42,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:42,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788862427] [2022-01-10 14:12:42,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788862427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:42,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:42,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:42,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671079066] [2022-01-10 14:12:42,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:42,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:42,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:42,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:42,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:42,311 INFO L87 Difference]: Start difference. First operand 2793 states and 3669 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 14:12:42,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:42,507 INFO L93 Difference]: Finished difference Result 4092 states and 5303 transitions. [2022-01-10 14:12:42,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:42,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 69 [2022-01-10 14:12:42,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:42,514 INFO L225 Difference]: With dead ends: 4092 [2022-01-10 14:12:42,514 INFO L226 Difference]: Without dead ends: 2467 [2022-01-10 14:12:42,517 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 14:12:42,518 INFO L933 BasicCegarLoop]: 1468 mSDtfsCounter, 99 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:42,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 2835 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2022-01-10 14:12:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2465. [2022-01-10 14:12:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2462 states have (on average 1.3139723801787164) internal successors, (3235), 2464 states have internal predecessors, (3235), 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 14:12:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3235 transitions. [2022-01-10 14:12:42,742 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3235 transitions. Word has length 69 [2022-01-10 14:12:42,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:42,742 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 3235 transitions. [2022-01-10 14:12:42,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 14:12:42,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3235 transitions. [2022-01-10 14:12:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 14:12:42,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:42,745 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:42,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 14:12:42,746 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:42,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1537729356, now seen corresponding path program 1 times [2022-01-10 14:12:42,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:42,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896469350] [2022-01-10 14:12:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:42,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 14:12:42,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896469350] [2022-01-10 14:12:42,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896469350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:42,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:42,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:42,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695272599] [2022-01-10 14:12:42,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:42,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:42,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:42,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:42,787 INFO L87 Difference]: Start difference. First operand 2465 states and 3235 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 14:12:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:43,022 INFO L93 Difference]: Finished difference Result 4109 states and 5339 transitions. [2022-01-10 14:12:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:43,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 100 [2022-01-10 14:12:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:43,029 INFO L225 Difference]: With dead ends: 4109 [2022-01-10 14:12:43,029 INFO L226 Difference]: Without dead ends: 2741 [2022-01-10 14:12:43,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:43,032 INFO L933 BasicCegarLoop]: 1379 mSDtfsCounter, 1359 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:43,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 1467 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-01-10 14:12:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2702. [2022-01-10 14:12:43,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2699 states have (on average 1.323823638384587) internal successors, (3573), 2701 states have internal predecessors, (3573), 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 14:12:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3573 transitions. [2022-01-10 14:12:43,262 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3573 transitions. Word has length 100 [2022-01-10 14:12:43,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:43,262 INFO L470 AbstractCegarLoop]: Abstraction has 2702 states and 3573 transitions. [2022-01-10 14:12:43,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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 14:12:43,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3573 transitions. [2022-01-10 14:12:43,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:43,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:43,265 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:43,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 14:12:43,266 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1450358746, now seen corresponding path program 1 times [2022-01-10 14:12:43,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:43,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348227593] [2022-01-10 14:12:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:43,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 14:12:43,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:43,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348227593] [2022-01-10 14:12:43,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348227593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:43,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:43,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:43,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506851950] [2022-01-10 14:12:43,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:43,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:43,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:43,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:43,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:43,317 INFO L87 Difference]: Start difference. First operand 2702 states and 3573 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 14:12:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:43,551 INFO L93 Difference]: Finished difference Result 4311 states and 5618 transitions. [2022-01-10 14:12:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 110 [2022-01-10 14:12:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:43,575 INFO L225 Difference]: With dead ends: 4311 [2022-01-10 14:12:43,575 INFO L226 Difference]: Without dead ends: 2710 [2022-01-10 14:12:43,582 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 14:12:43,584 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 69 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:43,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 2624 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2022-01-10 14:12:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 2710. [2022-01-10 14:12:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2707 states have (on average 1.3132619135574437) internal successors, (3555), 2709 states have internal predecessors, (3555), 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 14:12:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3555 transitions. [2022-01-10 14:12:44,034 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3555 transitions. Word has length 110 [2022-01-10 14:12:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:44,035 INFO L470 AbstractCegarLoop]: Abstraction has 2710 states and 3555 transitions. [2022-01-10 14:12:44,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 14:12:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3555 transitions. [2022-01-10 14:12:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:44,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:44,040 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:44,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 14:12:44,040 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1690898875, now seen corresponding path program 1 times [2022-01-10 14:12:44,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:44,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264671826] [2022-01-10 14:12:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:44,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 14:12:44,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264671826] [2022-01-10 14:12:44,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264671826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:44,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:44,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:44,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912288977] [2022-01-10 14:12:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:44,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:44,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:44,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:44,189 INFO L87 Difference]: Start difference. First operand 2710 states and 3555 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 14:12:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:44,413 INFO L93 Difference]: Finished difference Result 3473 states and 4513 transitions. [2022-01-10 14:12:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:44,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 110 [2022-01-10 14:12:44,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:44,418 INFO L225 Difference]: With dead ends: 3473 [2022-01-10 14:12:44,419 INFO L226 Difference]: Without dead ends: 1864 [2022-01-10 14:12:44,434 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 14:12:44,436 INFO L933 BasicCegarLoop]: 1370 mSDtfsCounter, 1332 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:44,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 1391 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:44,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-01-10 14:12:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1864. [2022-01-10 14:12:44,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1861 states have (on average 1.3283181085437936) internal successors, (2472), 1863 states have internal predecessors, (2472), 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 14:12:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2472 transitions. [2022-01-10 14:12:44,568 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2472 transitions. Word has length 110 [2022-01-10 14:12:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:44,568 INFO L470 AbstractCegarLoop]: Abstraction has 1864 states and 2472 transitions. [2022-01-10 14:12:44,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 14:12:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2472 transitions. [2022-01-10 14:12:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:44,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:44,571 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] [2022-01-10 14:12:44,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 14:12:44,571 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash 235960119, now seen corresponding path program 1 times [2022-01-10 14:12:44,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:44,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763378655] [2022-01-10 14:12:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:44,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:44,611 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 14:12:44,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:44,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763378655] [2022-01-10 14:12:44,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763378655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:44,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:44,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:44,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240285398] [2022-01-10 14:12:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:44,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:44,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:44,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:44,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:44,614 INFO L87 Difference]: Start difference. First operand 1864 states and 2472 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:44,828 INFO L93 Difference]: Finished difference Result 3367 states and 4707 transitions. [2022-01-10 14:12:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:44,834 INFO L225 Difference]: With dead ends: 3367 [2022-01-10 14:12:44,835 INFO L226 Difference]: Without dead ends: 2542 [2022-01-10 14:12:44,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:44,837 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 1272 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:44,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 2448 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:44,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2022-01-10 14:12:45,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2538. [2022-01-10 14:12:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.368836291913215) internal successors, (3470), 2537 states have internal predecessors, (3470), 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 14:12:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3470 transitions. [2022-01-10 14:12:45,019 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3470 transitions. Word has length 110 [2022-01-10 14:12:45,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:45,020 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3470 transitions. [2022-01-10 14:12:45,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3470 transitions. [2022-01-10 14:12:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:45,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:45,022 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] [2022-01-10 14:12:45,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 14:12:45,022 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash 58394455, now seen corresponding path program 1 times [2022-01-10 14:12:45,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:45,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757836958] [2022-01-10 14:12:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:45,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:45,065 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 14:12:45,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:45,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757836958] [2022-01-10 14:12:45,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757836958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:45,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:45,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:45,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691629373] [2022-01-10 14:12:45,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:45,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:45,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:45,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:45,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:45,068 INFO L87 Difference]: Start difference. First operand 2538 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:45,244 INFO L93 Difference]: Finished difference Result 4036 states and 5698 transitions. [2022-01-10 14:12:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:45,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:45,250 INFO L225 Difference]: With dead ends: 4036 [2022-01-10 14:12:45,250 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:45,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:45,253 INFO L933 BasicCegarLoop]: 1362 mSDtfsCounter, 1352 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:45,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 1362 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.365680473372781) internal successors, (3462), 2537 states have internal predecessors, (3462), 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 14:12:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3462 transitions. [2022-01-10 14:12:45,499 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3462 transitions. Word has length 110 [2022-01-10 14:12:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:45,499 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3462 transitions. [2022-01-10 14:12:45,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3462 transitions. [2022-01-10 14:12:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:45,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:45,502 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] [2022-01-10 14:12:45,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 14:12:45,503 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash 745403191, now seen corresponding path program 1 times [2022-01-10 14:12:45,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:45,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560775865] [2022-01-10 14:12:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:45,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:45,543 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 14:12:45,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:45,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560775865] [2022-01-10 14:12:45,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560775865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:45,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:45,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:45,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464993496] [2022-01-10 14:12:45,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:45,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:45,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:45,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:45,546 INFO L87 Difference]: Start difference. First operand 2538 states and 3462 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:45,784 INFO L93 Difference]: Finished difference Result 4035 states and 5681 transitions. [2022-01-10 14:12:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:45,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:45,790 INFO L225 Difference]: With dead ends: 4035 [2022-01-10 14:12:45,790 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:45,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:45,793 INFO L933 BasicCegarLoop]: 1357 mSDtfsCounter, 1346 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:45,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 1357 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.362524654832347) internal successors, (3454), 2537 states have internal predecessors, (3454), 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 14:12:46,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3454 transitions. [2022-01-10 14:12:46,038 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3454 transitions. Word has length 110 [2022-01-10 14:12:46,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:46,038 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3454 transitions. [2022-01-10 14:12:46,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3454 transitions. [2022-01-10 14:12:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:46,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:46,042 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] [2022-01-10 14:12:46,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 14:12:46,042 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:46,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash 629017431, now seen corresponding path program 1 times [2022-01-10 14:12:46,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:46,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128257081] [2022-01-10 14:12:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:46,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:46,117 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 14:12:46,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:46,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128257081] [2022-01-10 14:12:46,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128257081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:46,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:46,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:46,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262319668] [2022-01-10 14:12:46,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:46,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:46,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:46,119 INFO L87 Difference]: Start difference. First operand 2538 states and 3454 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:46,337 INFO L93 Difference]: Finished difference Result 4034 states and 5664 transitions. [2022-01-10 14:12:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:46,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:46,342 INFO L225 Difference]: With dead ends: 4034 [2022-01-10 14:12:46,342 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:46,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:46,346 INFO L933 BasicCegarLoop]: 1352 mSDtfsCounter, 1340 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:46,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 1352 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3593688362919132) internal successors, (3446), 2537 states have internal predecessors, (3446), 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 14:12:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3446 transitions. [2022-01-10 14:12:46,522 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3446 transitions. Word has length 110 [2022-01-10 14:12:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:46,523 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3446 transitions. [2022-01-10 14:12:46,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3446 transitions. [2022-01-10 14:12:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:46,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:46,525 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] [2022-01-10 14:12:46,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 14:12:46,525 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:46,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:46,526 INFO L85 PathProgramCache]: Analyzing trace with hash -67473609, now seen corresponding path program 1 times [2022-01-10 14:12:46,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:46,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965411879] [2022-01-10 14:12:46,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:46,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:46,571 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 14:12:46,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:46,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965411879] [2022-01-10 14:12:46,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965411879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:46,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:46,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:46,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892513877] [2022-01-10 14:12:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:46,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:46,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:46,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:46,574 INFO L87 Difference]: Start difference. First operand 2538 states and 3446 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:46,770 INFO L93 Difference]: Finished difference Result 4033 states and 5647 transitions. [2022-01-10 14:12:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:46,775 INFO L225 Difference]: With dead ends: 4033 [2022-01-10 14:12:46,776 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:46,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:46,778 INFO L933 BasicCegarLoop]: 1347 mSDtfsCounter, 1334 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:46,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 1347 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:46,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3562130177514793) internal successors, (3438), 2537 states have internal predecessors, (3438), 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 14:12:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3438 transitions. [2022-01-10 14:12:46,985 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3438 transitions. Word has length 110 [2022-01-10 14:12:46,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:46,986 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3438 transitions. [2022-01-10 14:12:46,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:46,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3438 transitions. [2022-01-10 14:12:46,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:46,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:46,990 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] [2022-01-10 14:12:46,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 14:12:46,990 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:46,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:46,990 INFO L85 PathProgramCache]: Analyzing trace with hash 879890263, now seen corresponding path program 1 times [2022-01-10 14:12:46,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:46,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056713411] [2022-01-10 14:12:46,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:46,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:47,022 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 14:12:47,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:47,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056713411] [2022-01-10 14:12:47,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056713411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:47,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:47,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:47,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810152003] [2022-01-10 14:12:47,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:47,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:47,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:47,025 INFO L87 Difference]: Start difference. First operand 2538 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:47,231 INFO L93 Difference]: Finished difference Result 4032 states and 5630 transitions. [2022-01-10 14:12:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:47,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:47,237 INFO L225 Difference]: With dead ends: 4032 [2022-01-10 14:12:47,237 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:47,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:47,242 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 1328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:47,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 1342 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3530571992110454) internal successors, (3430), 2537 states have internal predecessors, (3430), 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 14:12:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3430 transitions. [2022-01-10 14:12:47,450 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3430 transitions. Word has length 110 [2022-01-10 14:12:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:47,450 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3430 transitions. [2022-01-10 14:12:47,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3430 transitions. [2022-01-10 14:12:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:47,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:47,453 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] [2022-01-10 14:12:47,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 14:12:47,453 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash -59380937, now seen corresponding path program 1 times [2022-01-10 14:12:47,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:47,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142258533] [2022-01-10 14:12:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:47,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:47,509 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 14:12:47,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:47,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142258533] [2022-01-10 14:12:47,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142258533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:47,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:47,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:47,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990631633] [2022-01-10 14:12:47,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:47,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:47,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:47,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:47,511 INFO L87 Difference]: Start difference. First operand 2538 states and 3430 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:47,724 INFO L93 Difference]: Finished difference Result 4031 states and 5613 transitions. [2022-01-10 14:12:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:47,730 INFO L225 Difference]: With dead ends: 4031 [2022-01-10 14:12:47,730 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:47,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:47,735 INFO L933 BasicCegarLoop]: 1337 mSDtfsCounter, 1322 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:47,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 1337 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:47,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3499013806706115) internal successors, (3422), 2537 states have internal predecessors, (3422), 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 14:12:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3422 transitions. [2022-01-10 14:12:47,959 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3422 transitions. Word has length 110 [2022-01-10 14:12:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:47,959 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3422 transitions. [2022-01-10 14:12:47,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3422 transitions. [2022-01-10 14:12:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:47,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:47,961 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] [2022-01-10 14:12:47,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 14:12:47,962 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:47,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:47,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1198058665, now seen corresponding path program 1 times [2022-01-10 14:12:47,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:47,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444761019] [2022-01-10 14:12:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:47,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:48,031 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 14:12:48,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444761019] [2022-01-10 14:12:48,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444761019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:48,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:48,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:48,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608207470] [2022-01-10 14:12:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:48,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:48,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:48,033 INFO L87 Difference]: Start difference. First operand 2538 states and 3422 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:48,426 INFO L93 Difference]: Finished difference Result 4030 states and 5596 transitions. [2022-01-10 14:12:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:48,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:48,432 INFO L225 Difference]: With dead ends: 4030 [2022-01-10 14:12:48,432 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:48,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:48,435 INFO L933 BasicCegarLoop]: 1332 mSDtfsCounter, 1316 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:48,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 1332 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:48,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:48,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3467455621301776) internal successors, (3414), 2537 states have internal predecessors, (3414), 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 14:12:48,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3414 transitions. [2022-01-10 14:12:48,713 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3414 transitions. Word has length 110 [2022-01-10 14:12:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:48,713 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3414 transitions. [2022-01-10 14:12:48,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3414 transitions. [2022-01-10 14:12:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:48,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:48,716 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] [2022-01-10 14:12:48,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 14:12:48,716 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1650432201, now seen corresponding path program 1 times [2022-01-10 14:12:48,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:48,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959957564] [2022-01-10 14:12:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:48,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:48,752 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 14:12:48,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:48,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959957564] [2022-01-10 14:12:48,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959957564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:48,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:48,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:48,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590112152] [2022-01-10 14:12:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:48,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:48,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:48,754 INFO L87 Difference]: Start difference. First operand 2538 states and 3414 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:49,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:49,024 INFO L93 Difference]: Finished difference Result 4029 states and 5579 transitions. [2022-01-10 14:12:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:49,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:49,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:49,029 INFO L225 Difference]: With dead ends: 4029 [2022-01-10 14:12:49,030 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:49,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:49,033 INFO L933 BasicCegarLoop]: 1307 mSDtfsCounter, 1218 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:49,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 1385 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:49,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:49,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3364891518737672) internal successors, (3388), 2537 states have internal predecessors, (3388), 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 14:12:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3388 transitions. [2022-01-10 14:12:49,272 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3388 transitions. Word has length 110 [2022-01-10 14:12:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:49,272 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3388 transitions. [2022-01-10 14:12:49,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3388 transitions. [2022-01-10 14:12:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:49,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:49,274 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] [2022-01-10 14:12:49,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 14:12:49,275 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2091344682, now seen corresponding path program 1 times [2022-01-10 14:12:49,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:49,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412523070] [2022-01-10 14:12:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:49,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:49,305 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 14:12:49,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:49,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412523070] [2022-01-10 14:12:49,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412523070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:49,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:49,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:49,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129550722] [2022-01-10 14:12:49,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:49,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:49,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:49,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:49,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:49,308 INFO L87 Difference]: Start difference. First operand 2538 states and 3388 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:49,575 INFO L93 Difference]: Finished difference Result 4028 states and 5526 transitions. [2022-01-10 14:12:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:49,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:49,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:49,584 INFO L225 Difference]: With dead ends: 4028 [2022-01-10 14:12:49,584 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:49,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:49,587 INFO L933 BasicCegarLoop]: 1292 mSDtfsCounter, 1203 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:49,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 1369 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.326232741617357) internal successors, (3362), 2537 states have internal predecessors, (3362), 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 14:12:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3362 transitions. [2022-01-10 14:12:49,832 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3362 transitions. Word has length 110 [2022-01-10 14:12:49,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:49,832 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3362 transitions. [2022-01-10 14:12:49,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3362 transitions. [2022-01-10 14:12:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:49,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:49,856 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] [2022-01-10 14:12:49,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 14:12:49,857 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:49,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1141291381, now seen corresponding path program 1 times [2022-01-10 14:12:49,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:49,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471000838] [2022-01-10 14:12:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:49,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:49,898 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 14:12:49,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:49,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471000838] [2022-01-10 14:12:49,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471000838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:49,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:49,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:49,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044516243] [2022-01-10 14:12:49,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:49,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:49,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:49,900 INFO L87 Difference]: Start difference. First operand 2538 states and 3362 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:50,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:50,258 INFO L93 Difference]: Finished difference Result 4027 states and 5473 transitions. [2022-01-10 14:12:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:50,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:50,292 INFO L225 Difference]: With dead ends: 4027 [2022-01-10 14:12:50,292 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:50,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:50,295 INFO L933 BasicCegarLoop]: 1277 mSDtfsCounter, 1188 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:50,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 1353 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3159763313609467) internal successors, (3336), 2537 states have internal predecessors, (3336), 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 14:12:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3336 transitions. [2022-01-10 14:12:50,631 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3336 transitions. Word has length 110 [2022-01-10 14:12:50,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:50,631 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3336 transitions. [2022-01-10 14:12:50,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3336 transitions. [2022-01-10 14:12:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:50,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:50,634 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] [2022-01-10 14:12:50,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 14:12:50,634 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:50,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1180794260, now seen corresponding path program 1 times [2022-01-10 14:12:50,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:50,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796887650] [2022-01-10 14:12:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:50,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:50,675 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 14:12:50,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:50,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796887650] [2022-01-10 14:12:50,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796887650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:50,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:50,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:50,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838288856] [2022-01-10 14:12:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:50,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:50,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:50,677 INFO L87 Difference]: Start difference. First operand 2538 states and 3336 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:51,018 INFO L93 Difference]: Finished difference Result 4025 states and 5418 transitions. [2022-01-10 14:12:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:51,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:51,023 INFO L225 Difference]: With dead ends: 4025 [2022-01-10 14:12:51,023 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:51,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:51,026 INFO L933 BasicCegarLoop]: 1262 mSDtfsCounter, 1172 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:51,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 1337 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:51,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.3057199211045365) internal successors, (3310), 2537 states have internal predecessors, (3310), 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 14:12:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3310 transitions. [2022-01-10 14:12:51,264 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3310 transitions. Word has length 110 [2022-01-10 14:12:51,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:51,265 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3310 transitions. [2022-01-10 14:12:51,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3310 transitions. [2022-01-10 14:12:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:51,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:51,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:12:51,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 14:12:51,267 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:51,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1181315021, now seen corresponding path program 1 times [2022-01-10 14:12:51,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:51,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737167563] [2022-01-10 14:12:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:51,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:51,299 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 14:12:51,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:51,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737167563] [2022-01-10 14:12:51,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737167563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:51,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:51,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:51,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740630747] [2022-01-10 14:12:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:51,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:51,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:51,301 INFO L87 Difference]: Start difference. First operand 2538 states and 3310 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:51,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:51,578 INFO L93 Difference]: Finished difference Result 4024 states and 5365 transitions. [2022-01-10 14:12:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:51,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:51,582 INFO L225 Difference]: With dead ends: 4024 [2022-01-10 14:12:51,582 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:51,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:51,585 INFO L933 BasicCegarLoop]: 1247 mSDtfsCounter, 1157 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:51,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 1321 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.2954635108481263) internal successors, (3284), 2537 states have internal predecessors, (3284), 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 14:12:51,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3284 transitions. [2022-01-10 14:12:51,834 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3284 transitions. Word has length 110 [2022-01-10 14:12:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:51,834 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3284 transitions. [2022-01-10 14:12:51,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3284 transitions. [2022-01-10 14:12:51,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:51,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:51,836 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] [2022-01-10 14:12:51,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 14:12:51,838 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:51,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1732040238, now seen corresponding path program 1 times [2022-01-10 14:12:51,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:51,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128052130] [2022-01-10 14:12:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:51,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:51,873 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 14:12:51,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:51,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128052130] [2022-01-10 14:12:51,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128052130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:51,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:51,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:51,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73728497] [2022-01-10 14:12:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:51,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:51,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:51,875 INFO L87 Difference]: Start difference. First operand 2538 states and 3284 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:52,148 INFO L93 Difference]: Finished difference Result 4023 states and 5312 transitions. [2022-01-10 14:12:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:52,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:52,154 INFO L225 Difference]: With dead ends: 4023 [2022-01-10 14:12:52,154 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:52,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:52,157 INFO L933 BasicCegarLoop]: 1232 mSDtfsCounter, 1142 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:52,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 1305 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.285207100591716) internal successors, (3258), 2537 states have internal predecessors, (3258), 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 14:12:52,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3258 transitions. [2022-01-10 14:12:52,456 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3258 transitions. Word has length 110 [2022-01-10 14:12:52,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:52,457 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3258 transitions. [2022-01-10 14:12:52,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3258 transitions. [2022-01-10 14:12:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:52,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:52,460 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] [2022-01-10 14:12:52,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 14:12:52,462 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:52,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:52,462 INFO L85 PathProgramCache]: Analyzing trace with hash 204098289, now seen corresponding path program 1 times [2022-01-10 14:12:52,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:52,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212925956] [2022-01-10 14:12:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:52,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:52,500 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 14:12:52,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:52,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212925956] [2022-01-10 14:12:52,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212925956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:52,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:52,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:52,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887889810] [2022-01-10 14:12:52,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:52,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:52,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:52,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:52,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:52,503 INFO L87 Difference]: Start difference. First operand 2538 states and 3258 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:52,893 INFO L93 Difference]: Finished difference Result 4022 states and 5259 transitions. [2022-01-10 14:12:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:52,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:52,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:52,913 INFO L225 Difference]: With dead ends: 4022 [2022-01-10 14:12:52,913 INFO L226 Difference]: Without dead ends: 2538 [2022-01-10 14:12:52,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:52,925 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 1127 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:52,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 1289 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-01-10 14:12:53,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2538. [2022-01-10 14:12:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2535 states have (on average 1.2749506903353056) internal successors, (3232), 2537 states have internal predecessors, (3232), 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 14:12:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3232 transitions. [2022-01-10 14:12:53,337 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3232 transitions. Word has length 110 [2022-01-10 14:12:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:53,337 INFO L470 AbstractCegarLoop]: Abstraction has 2538 states and 3232 transitions. [2022-01-10 14:12:53,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3232 transitions. [2022-01-10 14:12:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:53,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:53,339 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] [2022-01-10 14:12:53,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 14:12:53,340 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash -899955952, now seen corresponding path program 1 times [2022-01-10 14:12:53,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:53,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957719230] [2022-01-10 14:12:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:53,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:53,407 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 14:12:53,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:53,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957719230] [2022-01-10 14:12:53,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957719230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:53,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:53,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:12:53,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210324428] [2022-01-10 14:12:53,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:53,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:12:53,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:12:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:53,409 INFO L87 Difference]: Start difference. First operand 2538 states and 3232 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:53,847 INFO L93 Difference]: Finished difference Result 4633 states and 6069 transitions. [2022-01-10 14:12:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:12:53,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:53,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:53,852 INFO L225 Difference]: With dead ends: 4633 [2022-01-10 14:12:53,852 INFO L226 Difference]: Without dead ends: 3156 [2022-01-10 14:12:53,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:12:53,856 INFO L933 BasicCegarLoop]: 1324 mSDtfsCounter, 3129 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:53,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3129 Valid, 2967 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states. [2022-01-10 14:12:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 2544. [2022-01-10 14:12:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2541 states have (on average 1.2672176308539944) internal successors, (3220), 2543 states have internal predecessors, (3220), 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 14:12:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3220 transitions. [2022-01-10 14:12:54,146 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3220 transitions. Word has length 110 [2022-01-10 14:12:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:54,146 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 3220 transitions. [2022-01-10 14:12:54,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3220 transitions. [2022-01-10 14:12:54,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:54,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:54,148 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] [2022-01-10 14:12:54,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 14:12:54,149 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:54,149 INFO L85 PathProgramCache]: Analyzing trace with hash -32903727, now seen corresponding path program 1 times [2022-01-10 14:12:54,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:54,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954096352] [2022-01-10 14:12:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:54,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:54,205 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 14:12:54,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954096352] [2022-01-10 14:12:54,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954096352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:54,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:54,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:12:54,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078428351] [2022-01-10 14:12:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:54,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:12:54,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:12:54,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:54,207 INFO L87 Difference]: Start difference. First operand 2544 states and 3220 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:54,731 INFO L93 Difference]: Finished difference Result 4833 states and 6274 transitions. [2022-01-10 14:12:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:12:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:54,736 INFO L225 Difference]: With dead ends: 4833 [2022-01-10 14:12:54,737 INFO L226 Difference]: Without dead ends: 3364 [2022-01-10 14:12:54,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:12:54,740 INFO L933 BasicCegarLoop]: 1278 mSDtfsCounter, 2875 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2875 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:54,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2875 Valid, 3385 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:12:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2022-01-10 14:12:55,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 2550. [2022-01-10 14:12:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2547 states have (on average 1.259521005104044) internal successors, (3208), 2549 states have internal predecessors, (3208), 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 14:12:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3208 transitions. [2022-01-10 14:12:55,041 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3208 transitions. Word has length 110 [2022-01-10 14:12:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:55,041 INFO L470 AbstractCegarLoop]: Abstraction has 2550 states and 3208 transitions. [2022-01-10 14:12:55,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3208 transitions. [2022-01-10 14:12:55,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:55,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:55,059 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] [2022-01-10 14:12:55,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 14:12:55,060 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash -241602030, now seen corresponding path program 1 times [2022-01-10 14:12:55,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:55,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92562085] [2022-01-10 14:12:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:55,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:55,122 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 14:12:55,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:55,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92562085] [2022-01-10 14:12:55,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92562085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:55,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:55,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:55,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95070796] [2022-01-10 14:12:55,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:55,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:55,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:55,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:55,124 INFO L87 Difference]: Start difference. First operand 2550 states and 3208 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:55,600 INFO L93 Difference]: Finished difference Result 5307 states and 6804 transitions. [2022-01-10 14:12:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:55,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:55,607 INFO L225 Difference]: With dead ends: 5307 [2022-01-10 14:12:55,607 INFO L226 Difference]: Without dead ends: 3834 [2022-01-10 14:12:55,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:55,611 INFO L933 BasicCegarLoop]: 1198 mSDtfsCounter, 1054 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:55,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 2137 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2022-01-10 14:12:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3826. [2022-01-10 14:12:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3823 states have (on average 1.2696834946377191) internal successors, (4854), 3825 states have internal predecessors, (4854), 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 14:12:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 4854 transitions. [2022-01-10 14:12:56,053 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 4854 transitions. Word has length 110 [2022-01-10 14:12:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:56,053 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 4854 transitions. [2022-01-10 14:12:56,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 4854 transitions. [2022-01-10 14:12:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:56,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:56,055 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] [2022-01-10 14:12:56,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 14:12:56,055 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1206474415, now seen corresponding path program 1 times [2022-01-10 14:12:56,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916005175] [2022-01-10 14:12:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:56,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:56,126 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 14:12:56,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:56,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916005175] [2022-01-10 14:12:56,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916005175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:56,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:56,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:12:56,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893294654] [2022-01-10 14:12:56,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:56,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:12:56,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:56,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:12:56,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:12:56,128 INFO L87 Difference]: Start difference. First operand 3826 states and 4854 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:57,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:57,072 INFO L93 Difference]: Finished difference Result 8833 states and 11381 transitions. [2022-01-10 14:12:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:12:57,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:57,082 INFO L225 Difference]: With dead ends: 8833 [2022-01-10 14:12:57,082 INFO L226 Difference]: Without dead ends: 6088 [2022-01-10 14:12:57,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:12:57,086 INFO L933 BasicCegarLoop]: 1256 mSDtfsCounter, 3137 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3137 SdHoareTripleChecker+Valid, 5821 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:57,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3137 Valid, 5821 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 14:12:57,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2022-01-10 14:12:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 3883. [2022-01-10 14:12:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3883 states, 3880 states have (on average 1.261082474226804) internal successors, (4893), 3882 states have internal predecessors, (4893), 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 14:12:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 4893 transitions. [2022-01-10 14:12:57,495 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 4893 transitions. Word has length 110 [2022-01-10 14:12:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:57,496 INFO L470 AbstractCegarLoop]: Abstraction has 3883 states and 4893 transitions. [2022-01-10 14:12:57,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 14:12:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 4893 transitions. [2022-01-10 14:12:57,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:57,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:57,498 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] [2022-01-10 14:12:57,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 14:12:57,498 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash -576015790, now seen corresponding path program 1 times [2022-01-10 14:12:57,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:57,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84274376] [2022-01-10 14:12:57,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:57,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:57,546 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 14:12:57,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:57,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84274376] [2022-01-10 14:12:57,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84274376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:57,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:57,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:57,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529488958] [2022-01-10 14:12:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:57,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:57,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:57,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:57,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:57,548 INFO L87 Difference]: Start difference. First operand 3883 states and 4893 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:57,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:57,936 INFO L93 Difference]: Finished difference Result 6665 states and 8466 transitions. [2022-01-10 14:12:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:57,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:57,941 INFO L225 Difference]: With dead ends: 6665 [2022-01-10 14:12:57,941 INFO L226 Difference]: Without dead ends: 3832 [2022-01-10 14:12:57,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:57,945 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 1022 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:57,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 1240 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2022-01-10 14:12:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3832. [2022-01-10 14:12:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3829 states have (on average 1.2520240271611387) internal successors, (4794), 3831 states have internal predecessors, (4794), 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 14:12:58,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 4794 transitions. [2022-01-10 14:12:58,402 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 4794 transitions. Word has length 110 [2022-01-10 14:12:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:58,402 INFO L470 AbstractCegarLoop]: Abstraction has 3832 states and 4794 transitions. [2022-01-10 14:12:58,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 4794 transitions. [2022-01-10 14:12:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:12:58,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:58,404 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] [2022-01-10 14:12:58,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 14:12:58,405 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:58,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:58,405 INFO L85 PathProgramCache]: Analyzing trace with hash -984840015, now seen corresponding path program 1 times [2022-01-10 14:12:58,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:58,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41753457] [2022-01-10 14:12:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:58,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:58,452 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 14:12:58,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:58,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41753457] [2022-01-10 14:12:58,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41753457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:58,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:58,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:12:58,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863226580] [2022-01-10 14:12:58,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:58,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:58,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:58,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:58,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:58,456 INFO L87 Difference]: Start difference. First operand 3832 states and 4794 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:12:59,057 INFO L93 Difference]: Finished difference Result 9228 states and 11665 transitions. [2022-01-10 14:12:59,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:12:59,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2022-01-10 14:12:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:12:59,093 INFO L225 Difference]: With dead ends: 9228 [2022-01-10 14:12:59,093 INFO L226 Difference]: Without dead ends: 6452 [2022-01-10 14:12:59,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:59,097 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 1036 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:12:59,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 2089 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:12:59,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6452 states. [2022-01-10 14:12:59,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6452 to 6234. [2022-01-10 14:12:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6231 states have (on average 1.2550152463489006) internal successors, (7820), 6233 states have internal predecessors, (7820), 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 14:12:59,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 7820 transitions. [2022-01-10 14:12:59,631 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 7820 transitions. Word has length 110 [2022-01-10 14:12:59,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:59,632 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 7820 transitions. [2022-01-10 14:12:59,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 14:12:59,632 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 7820 transitions. [2022-01-10 14:12:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 14:12:59,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:59,634 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:12:59,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 14:12:59,634 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:59,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1621108930, now seen corresponding path program 1 times [2022-01-10 14:12:59,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:59,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714110842] [2022-01-10 14:12:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:59,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 14:12:59,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:59,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714110842] [2022-01-10 14:12:59,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714110842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:59,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:59,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:59,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446396996] [2022-01-10 14:12:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:59,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:59,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:59,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:59,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:59,689 INFO L87 Difference]: Start difference. First operand 6234 states and 7820 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 14:13:00,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:00,268 INFO L93 Difference]: Finished difference Result 7006 states and 8764 transitions. [2022-01-10 14:13:00,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:00,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 113 [2022-01-10 14:13:00,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:00,277 INFO L225 Difference]: With dead ends: 7006 [2022-01-10 14:13:00,277 INFO L226 Difference]: Without dead ends: 6243 [2022-01-10 14:13:00,279 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 14:13:00,279 INFO L933 BasicCegarLoop]: 1178 mSDtfsCounter, 60 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:00,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 2246 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:00,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6243 states. [2022-01-10 14:13:00,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6243 to 6243. [2022-01-10 14:13:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6243 states, 6240 states have (on average 1.2524038461538463) internal successors, (7815), 6242 states have internal predecessors, (7815), 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 14:13:00,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6243 states to 6243 states and 7815 transitions. [2022-01-10 14:13:00,778 INFO L78 Accepts]: Start accepts. Automaton has 6243 states and 7815 transitions. Word has length 113 [2022-01-10 14:13:00,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:00,778 INFO L470 AbstractCegarLoop]: Abstraction has 6243 states and 7815 transitions. [2022-01-10 14:13:00,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 14:13:00,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6243 states and 7815 transitions. [2022-01-10 14:13:00,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 14:13:00,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:00,780 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:00,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 14:13:00,781 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1172412291, now seen corresponding path program 1 times [2022-01-10 14:13:00,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:00,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472751077] [2022-01-10 14:13:00,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:00,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 14:13:00,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:00,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472751077] [2022-01-10 14:13:00,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472751077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:00,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:00,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:00,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186711969] [2022-01-10 14:13:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:00,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:00,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:00,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:00,850 INFO L87 Difference]: Start difference. First operand 6243 states and 7815 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 14:13:01,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:01,431 INFO L93 Difference]: Finished difference Result 6638 states and 8278 transitions. [2022-01-10 14:13:01,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:01,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 113 [2022-01-10 14:13:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:01,438 INFO L225 Difference]: With dead ends: 6638 [2022-01-10 14:13:01,438 INFO L226 Difference]: Without dead ends: 5210 [2022-01-10 14:13:01,440 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 14:13:01,441 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 1126 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:01,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 1193 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:01,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2022-01-10 14:13:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5210. [2022-01-10 14:13:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5210 states, 5208 states have (on average 1.2678571428571428) internal successors, (6603), 5209 states have internal predecessors, (6603), 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 14:13:01,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 6603 transitions. [2022-01-10 14:13:01,890 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 6603 transitions. Word has length 113 [2022-01-10 14:13:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:01,890 INFO L470 AbstractCegarLoop]: Abstraction has 5210 states and 6603 transitions. [2022-01-10 14:13:01,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 14:13:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 6603 transitions. [2022-01-10 14:13:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 14:13:01,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:01,893 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:01,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 14:13:01,894 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:01,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash 667228794, now seen corresponding path program 1 times [2022-01-10 14:13:01,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:01,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718076496] [2022-01-10 14:13:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:01,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:01,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:01,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718076496] [2022-01-10 14:13:01,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718076496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:01,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:01,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:01,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092751388] [2022-01-10 14:13:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:01,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:01,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:01,951 INFO L87 Difference]: Start difference. First operand 5210 states and 6603 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 14:13:02,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:02,867 INFO L93 Difference]: Finished difference Result 15345 states and 19480 transitions. [2022-01-10 14:13:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:02,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2022-01-10 14:13:02,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:02,880 INFO L225 Difference]: With dead ends: 15345 [2022-01-10 14:13:02,880 INFO L226 Difference]: Without dead ends: 10173 [2022-01-10 14:13:02,886 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 14:13:02,886 INFO L933 BasicCegarLoop]: 1049 mSDtfsCounter, 949 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:02,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 1967 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2022-01-10 14:13:03,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 9749. [2022-01-10 14:13:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9749 states, 9747 states have (on average 1.2653124038165589) internal successors, (12333), 9748 states have internal predecessors, (12333), 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 14:13:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9749 states to 9749 states and 12333 transitions. [2022-01-10 14:13:03,806 INFO L78 Accepts]: Start accepts. Automaton has 9749 states and 12333 transitions. Word has length 178 [2022-01-10 14:13:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:03,806 INFO L470 AbstractCegarLoop]: Abstraction has 9749 states and 12333 transitions. [2022-01-10 14:13:03,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 14:13:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 9749 states and 12333 transitions. [2022-01-10 14:13:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 14:13:03,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:03,809 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:03,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 14:13:03,809 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:03,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:03,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1137802745, now seen corresponding path program 1 times [2022-01-10 14:13:03,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:03,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053209536] [2022-01-10 14:13:03,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:03,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:03,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:03,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053209536] [2022-01-10 14:13:03,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053209536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:03,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:03,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:03,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546450754] [2022-01-10 14:13:03,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:03,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:03,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:03,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:03,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:03,866 INFO L87 Difference]: Start difference. First operand 9749 states and 12333 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 14:13:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:05,603 INFO L93 Difference]: Finished difference Result 28687 states and 36071 transitions. [2022-01-10 14:13:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2022-01-10 14:13:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:05,627 INFO L225 Difference]: With dead ends: 28687 [2022-01-10 14:13:05,627 INFO L226 Difference]: Without dead ends: 19039 [2022-01-10 14:13:05,639 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 14:13:05,640 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 946 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:05,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 2399 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:05,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19039 states. [2022-01-10 14:13:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19039 to 18647. [2022-01-10 14:13:07,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18647 states, 18645 states have (on average 1.2502547599892733) internal successors, (23311), 18646 states have internal predecessors, (23311), 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 14:13:07,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18647 states to 18647 states and 23311 transitions. [2022-01-10 14:13:07,230 INFO L78 Accepts]: Start accepts. Automaton has 18647 states and 23311 transitions. Word has length 178 [2022-01-10 14:13:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:07,230 INFO L470 AbstractCegarLoop]: Abstraction has 18647 states and 23311 transitions. [2022-01-10 14:13:07,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 14:13:07,230 INFO L276 IsEmpty]: Start isEmpty. Operand 18647 states and 23311 transitions. [2022-01-10 14:13:07,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 14:13:07,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:07,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:07,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 14:13:07,237 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash 768746266, now seen corresponding path program 1 times [2022-01-10 14:13:07,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:07,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337291338] [2022-01-10 14:13:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:07,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 14:13:07,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:07,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337291338] [2022-01-10 14:13:07,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337291338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:07,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:07,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:07,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603689297] [2022-01-10 14:13:07,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:07,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:07,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:07,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:07,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:07,269 INFO L87 Difference]: Start difference. First operand 18647 states and 23311 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 14:13:08,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:08,910 INFO L93 Difference]: Finished difference Result 37158 states and 46461 transitions. [2022-01-10 14:13:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 178 [2022-01-10 14:13:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:08,929 INFO L225 Difference]: With dead ends: 37158 [2022-01-10 14:13:08,929 INFO L226 Difference]: Without dead ends: 18553 [2022-01-10 14:13:08,941 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 14:13:08,942 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 1055 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:08,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 1061 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18553 states. [2022-01-10 14:13:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18553 to 18553. [2022-01-10 14:13:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18553 states, 18551 states have (on average 1.250606436310711) internal successors, (23200), 18552 states have internal predecessors, (23200), 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 14:13:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18553 states to 18553 states and 23200 transitions. [2022-01-10 14:13:10,586 INFO L78 Accepts]: Start accepts. Automaton has 18553 states and 23200 transitions. Word has length 178 [2022-01-10 14:13:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:10,586 INFO L470 AbstractCegarLoop]: Abstraction has 18553 states and 23200 transitions. [2022-01-10 14:13:10,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 14:13:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 18553 states and 23200 transitions. [2022-01-10 14:13:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 14:13:10,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:10,592 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:10,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 14:13:10,592 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash 363892076, now seen corresponding path program 1 times [2022-01-10 14:13:10,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:10,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057295540] [2022-01-10 14:13:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:10,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:10,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:10,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057295540] [2022-01-10 14:13:10,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057295540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:10,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:10,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:10,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509821666] [2022-01-10 14:13:10,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:10,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:10,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:10,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:10,658 INFO L87 Difference]: Start difference. First operand 18553 states and 23200 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 14:13:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:13,516 INFO L93 Difference]: Finished difference Result 53262 states and 66448 transitions. [2022-01-10 14:13:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 179 [2022-01-10 14:13:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:13,562 INFO L225 Difference]: With dead ends: 53262 [2022-01-10 14:13:13,563 INFO L226 Difference]: Without dead ends: 34810 [2022-01-10 14:13:13,582 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 14:13:13,583 INFO L933 BasicCegarLoop]: 1544 mSDtfsCounter, 786 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:13,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 2583 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34810 states. [2022-01-10 14:13:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34810 to 34806. [2022-01-10 14:13:16,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34806 states, 34804 states have (on average 1.24365015515458) internal successors, (43284), 34805 states have internal predecessors, (43284), 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 14:13:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34806 states to 34806 states and 43284 transitions. [2022-01-10 14:13:16,923 INFO L78 Accepts]: Start accepts. Automaton has 34806 states and 43284 transitions. Word has length 179 [2022-01-10 14:13:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:16,924 INFO L470 AbstractCegarLoop]: Abstraction has 34806 states and 43284 transitions. [2022-01-10 14:13:16,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 14:13:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 34806 states and 43284 transitions. [2022-01-10 14:13:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 14:13:16,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:16,935 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:16,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 14:13:16,935 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash -320338229, now seen corresponding path program 1 times [2022-01-10 14:13:16,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:16,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633722055] [2022-01-10 14:13:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:16,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 14:13:16,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:16,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633722055] [2022-01-10 14:13:16,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633722055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:16,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:16,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:16,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081075566] [2022-01-10 14:13:16,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:16,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:16,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:16,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:16,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:16,969 INFO L87 Difference]: Start difference. First operand 34806 states and 43284 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 14:13:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:20,449 INFO L93 Difference]: Finished difference Result 69418 states and 86342 transitions. [2022-01-10 14:13:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:20,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 179 [2022-01-10 14:13:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:20,490 INFO L225 Difference]: With dead ends: 69418 [2022-01-10 14:13:20,490 INFO L226 Difference]: Without dead ends: 34713 [2022-01-10 14:13:20,516 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 14:13:20,516 INFO L933 BasicCegarLoop]: 1059 mSDtfsCounter, 1053 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:20,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 1060 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:20,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34713 states. [2022-01-10 14:13:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34713 to 34713. [2022-01-10 14:13:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34713 states, 34711 states have (on average 1.243842009737547) internal successors, (43175), 34712 states have internal predecessors, (43175), 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 14:13:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34713 states to 34713 states and 43175 transitions. [2022-01-10 14:13:23,634 INFO L78 Accepts]: Start accepts. Automaton has 34713 states and 43175 transitions. Word has length 179 [2022-01-10 14:13:23,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:23,634 INFO L470 AbstractCegarLoop]: Abstraction has 34713 states and 43175 transitions. [2022-01-10 14:13:23,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 14:13:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 34713 states and 43175 transitions. [2022-01-10 14:13:23,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 14:13:23,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:23,644 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:23,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 14:13:23,644 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:23,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:23,645 INFO L85 PathProgramCache]: Analyzing trace with hash 812130316, now seen corresponding path program 1 times [2022-01-10 14:13:23,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:23,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520137289] [2022-01-10 14:13:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:23,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:23,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:23,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520137289] [2022-01-10 14:13:23,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520137289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:23,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:23,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:23,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232879811] [2022-01-10 14:13:23,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:23,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:23,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:23,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:23,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:23,702 INFO L87 Difference]: Start difference. First operand 34713 states and 43175 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 14:13:29,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:29,766 INFO L93 Difference]: Finished difference Result 101757 states and 126389 transitions. [2022-01-10 14:13:29,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:29,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 180 [2022-01-10 14:13:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:29,873 INFO L225 Difference]: With dead ends: 101757 [2022-01-10 14:13:29,873 INFO L226 Difference]: Without dead ends: 67145 [2022-01-10 14:13:29,909 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 14:13:29,910 INFO L933 BasicCegarLoop]: 1517 mSDtfsCounter, 791 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:29,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2554 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67145 states.