/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_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:37:31,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:37:31,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:37:32,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 19:37:32,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:37:32,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:37:32,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:37:32,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:37:32,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:37:32,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:37:32,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:37:32,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:37:32,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:37:32,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:37:32,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:37:32,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:37:32,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 19:37:32,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:37:32,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:37:32,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:37:32,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:37:32,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:37:32,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:37:32,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:37:32,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:37:32,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:37:32,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:37:32,086 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:37:32,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:37:32,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:37:32,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:37:32,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:37:32,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:37:32,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:37:32,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:37:32,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:37:32,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:37:32,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:37:32,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:37:32,092 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:37:32,092 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:37:32,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:37:32,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:37:32,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:37:32,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:37:32,314 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:37:32,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c [2022-01-10 19:37:32,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ad8474/25894830899f45d393045dc3295a9ac5/FLAGbe4aec355 [2022-01-10 19:37:32,986 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:37:32,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c [2022-01-10 19:37:33,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ad8474/25894830899f45d393045dc3295a9ac5/FLAGbe4aec355 [2022-01-10 19:37:33,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7ad8474/25894830899f45d393045dc3295a9ac5 [2022-01-10 19:37:33,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:37:33,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:37:33,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:37:33,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:37:33,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:37:33,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:37:33" (1/1) ... [2022-01-10 19:37:33,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2f9a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:33, skipping insertion in model container [2022-01-10 19:37:33,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:37:33" (1/1) ... [2022-01-10 19:37:33,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:37:33,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:37:34,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c[380593,380606] [2022-01-10 19:37:34,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c[383339,383352] [2022-01-10 19:37:34,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:37:34,761 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:37:35,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c[380593,380606] [2022-01-10 19:37:35,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.15.cil.c[383339,383352] [2022-01-10 19:37:35,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:37:35,440 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:37:35,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35 WrapperNode [2022-01-10 19:37:35,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:37:35,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:37:35,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:37:35,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:37:35,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:35,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:35,877 INFO L137 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 76, calls inlined = 313, statements flattened = 16998 [2022-01-10 19:37:35,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:37:35,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:37:35,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:37:35,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:37:35,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:35,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:35,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:35,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:36,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:36,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:36,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:36,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:37:36,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:37:36,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:37:36,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:37:36,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (1/1) ... [2022-01-10 19:37:36,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:37:36,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:37:36,398 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 19:37:36,411 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 19:37:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:37:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:37:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:37:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:37:36,558 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:37:36,559 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:37:44,092 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:37:44,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:37:44,121 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-10 19:37:44,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:44 BoogieIcfgContainer [2022-01-10 19:37:44,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:37:44,126 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:37:44,126 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:37:44,127 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:37:44,129 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:44" (1/1) ... [2022-01-10 19:37:45,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:37:45 BasicIcfg [2022-01-10 19:37:45,845 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:37:45,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:37:45,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:37:45,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:37:45,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:37:33" (1/4) ... [2022-01-10 19:37:45,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5949ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:37:45, skipping insertion in model container [2022-01-10 19:37:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:35" (2/4) ... [2022-01-10 19:37:45,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5949ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:37:45, skipping insertion in model container [2022-01-10 19:37:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:44" (3/4) ... [2022-01-10 19:37:45,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5949ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:37:45, skipping insertion in model container [2022-01-10 19:37:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:37:45" (4/4) ... [2022-01-10 19:37:45,850 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.15.cil.cTransformedIcfg [2022-01-10 19:37:45,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:37:45,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:37:45,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:37:45,891 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 19:37:45,891 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:37:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 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 19:37:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:45,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:45,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:45,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:45,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:45,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2029452267, now seen corresponding path program 1 times [2022-01-10 19:37:45,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:45,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709338837] [2022-01-10 19:37:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:45,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:46,234 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 19:37:46,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:46,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709338837] [2022-01-10 19:37:46,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709338837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:46,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:46,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:46,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118423565] [2022-01-10 19:37:46,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:46,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:46,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:46,268 INFO L87 Difference]: Start difference. First operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 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 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:46,492 INFO L93 Difference]: Finished difference Result 10160 states and 16806 transitions. [2022-01-10 19:37:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:46,519 INFO L225 Difference]: With dead ends: 10160 [2022-01-10 19:37:46,519 INFO L226 Difference]: Without dead ends: 5896 [2022-01-10 19:37:46,528 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 19:37:46,531 INFO L933 BasicCegarLoop]: 7015 mSDtfsCounter, 6853 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6853 SdHoareTripleChecker+Valid, 9722 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 19:37:46,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6853 Valid, 9722 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-10 19:37:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5892. [2022-01-10 19:37:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6155544235014434) internal successors, (9514), 5891 states have internal predecessors, (9514), 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 19:37:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9514 transitions. [2022-01-10 19:37:46,747 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9514 transitions. Word has length 176 [2022-01-10 19:37:46,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:46,747 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9514 transitions. [2022-01-10 19:37:46,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9514 transitions. [2022-01-10 19:37:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:46,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:46,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:46,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:37:46,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:46,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:46,757 INFO L85 PathProgramCache]: Analyzing trace with hash 159812149, now seen corresponding path program 1 times [2022-01-10 19:37:46,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:46,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495525990] [2022-01-10 19:37:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:46,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:46,837 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 19:37:46,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:46,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495525990] [2022-01-10 19:37:46,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495525990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:46,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:46,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229240227] [2022-01-10 19:37:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:46,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:46,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:46,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:46,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:46,840 INFO L87 Difference]: Start difference. First operand 5892 states and 9514 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:46,951 INFO L93 Difference]: Finished difference Result 9642 states and 15034 transitions. [2022-01-10 19:37:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:46,968 INFO L225 Difference]: With dead ends: 9642 [2022-01-10 19:37:46,969 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:46,976 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 19:37:46,977 INFO L933 BasicCegarLoop]: 6942 mSDtfsCounter, 6926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6926 SdHoareTripleChecker+Valid, 6942 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 19:37:46,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6926 Valid, 6942 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6141959585668195) internal successors, (9506), 5891 states have internal predecessors, (9506), 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 19:37:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9506 transitions. [2022-01-10 19:37:47,094 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9506 transitions. Word has length 176 [2022-01-10 19:37:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:47,095 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9506 transitions. [2022-01-10 19:37:47,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9506 transitions. [2022-01-10 19:37:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:47,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:47,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:47,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:37:47,105 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:47,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:47,106 INFO L85 PathProgramCache]: Analyzing trace with hash -600850411, now seen corresponding path program 1 times [2022-01-10 19:37:47,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:47,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182316228] [2022-01-10 19:37:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:47,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:47,208 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 19:37:47,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:47,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182316228] [2022-01-10 19:37:47,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182316228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:47,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:47,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:47,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287754449] [2022-01-10 19:37:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:47,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:47,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:47,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:47,210 INFO L87 Difference]: Start difference. First operand 5892 states and 9506 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:47,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:47,446 INFO L93 Difference]: Finished difference Result 9641 states and 15017 transitions. [2022-01-10 19:37:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:47,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:47,463 INFO L225 Difference]: With dead ends: 9641 [2022-01-10 19:37:47,464 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:47,472 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 19:37:47,475 INFO L933 BasicCegarLoop]: 6937 mSDtfsCounter, 6920 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6920 SdHoareTripleChecker+Valid, 6937 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 19:37:47,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6920 Valid, 6937 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:47,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:47,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6128374936321956) internal successors, (9498), 5891 states have internal predecessors, (9498), 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 19:37:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9498 transitions. [2022-01-10 19:37:47,624 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9498 transitions. Word has length 176 [2022-01-10 19:37:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:47,624 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9498 transitions. [2022-01-10 19:37:47,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9498 transitions. [2022-01-10 19:37:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:47,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:47,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:47,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:37:47,627 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:47,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1452822069, now seen corresponding path program 1 times [2022-01-10 19:37:47,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:47,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812101864] [2022-01-10 19:37:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:47,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:47,694 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 19:37:47,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:47,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812101864] [2022-01-10 19:37:47,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812101864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:47,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:47,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:47,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322865325] [2022-01-10 19:37:47,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:47,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:47,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:47,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:47,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:47,697 INFO L87 Difference]: Start difference. First operand 5892 states and 9498 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:47,810 INFO L93 Difference]: Finished difference Result 9640 states and 15000 transitions. [2022-01-10 19:37:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:47,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:47,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:47,841 INFO L225 Difference]: With dead ends: 9640 [2022-01-10 19:37:47,841 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:47,850 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 19:37:47,854 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 6914 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6914 SdHoareTripleChecker+Valid, 6932 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 19:37:47,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6914 Valid, 6932 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:47,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6114790286975718) internal successors, (9490), 5891 states have internal predecessors, (9490), 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 19:37:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9490 transitions. [2022-01-10 19:37:47,994 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9490 transitions. Word has length 176 [2022-01-10 19:37:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:47,994 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9490 transitions. [2022-01-10 19:37:47,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9490 transitions. [2022-01-10 19:37:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:47,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:47,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:47,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:37:47,996 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:47,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2083161067, now seen corresponding path program 1 times [2022-01-10 19:37:47,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:47,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300709827] [2022-01-10 19:37:47,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:47,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:48,083 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 19:37:48,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:48,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300709827] [2022-01-10 19:37:48,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300709827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:48,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:48,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:48,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826518712] [2022-01-10 19:37:48,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:48,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:48,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:48,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:48,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:48,086 INFO L87 Difference]: Start difference. First operand 5892 states and 9490 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:48,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:48,189 INFO L93 Difference]: Finished difference Result 9639 states and 14983 transitions. [2022-01-10 19:37:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:48,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:48,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:48,200 INFO L225 Difference]: With dead ends: 9639 [2022-01-10 19:37:48,200 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:48,205 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 19:37:48,206 INFO L933 BasicCegarLoop]: 6927 mSDtfsCounter, 6908 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6908 SdHoareTripleChecker+Valid, 6927 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 19:37:48,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6908 Valid, 6927 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6101205637629479) internal successors, (9482), 5891 states have internal predecessors, (9482), 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 19:37:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9482 transitions. [2022-01-10 19:37:48,321 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9482 transitions. Word has length 176 [2022-01-10 19:37:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:48,325 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9482 transitions. [2022-01-10 19:37:48,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9482 transitions. [2022-01-10 19:37:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:48,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:48,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:48,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:37:48,327 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:48,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:48,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2058677707, now seen corresponding path program 1 times [2022-01-10 19:37:48,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:48,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246700576] [2022-01-10 19:37:48,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:48,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:48,378 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 19:37:48,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:48,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246700576] [2022-01-10 19:37:48,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246700576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:48,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:48,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:48,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780661813] [2022-01-10 19:37:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:48,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:48,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:48,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:48,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:48,380 INFO L87 Difference]: Start difference. First operand 5892 states and 9482 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:48,489 INFO L93 Difference]: Finished difference Result 9638 states and 14966 transitions. [2022-01-10 19:37:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:48,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:48,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:48,499 INFO L225 Difference]: With dead ends: 9638 [2022-01-10 19:37:48,499 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:48,506 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 19:37:48,508 INFO L933 BasicCegarLoop]: 6922 mSDtfsCounter, 6902 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 6922 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 19:37:48,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6902 Valid, 6922 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:48,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.608762098828324) internal successors, (9474), 5891 states have internal predecessors, (9474), 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 19:37:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9474 transitions. [2022-01-10 19:37:48,630 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9474 transitions. Word has length 176 [2022-01-10 19:37:48,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:48,630 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9474 transitions. [2022-01-10 19:37:48,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9474 transitions. [2022-01-10 19:37:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:48,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:48,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:48,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:37:48,632 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:48,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:48,632 INFO L85 PathProgramCache]: Analyzing trace with hash 297416725, now seen corresponding path program 1 times [2022-01-10 19:37:48,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:48,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375236184] [2022-01-10 19:37:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:48,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:48,680 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 19:37:48,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375236184] [2022-01-10 19:37:48,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375236184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:48,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:48,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:48,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558386132] [2022-01-10 19:37:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:48,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:48,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:48,682 INFO L87 Difference]: Start difference. First operand 5892 states and 9474 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:48,904 INFO L93 Difference]: Finished difference Result 9637 states and 14949 transitions. [2022-01-10 19:37:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:48,915 INFO L225 Difference]: With dead ends: 9637 [2022-01-10 19:37:48,915 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:48,919 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 19:37:48,920 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6896 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6896 SdHoareTripleChecker+Valid, 6917 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 19:37:48,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6896 Valid, 6917 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6074036338937001) internal successors, (9466), 5891 states have internal predecessors, (9466), 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 19:37:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9466 transitions. [2022-01-10 19:37:49,055 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9466 transitions. Word has length 176 [2022-01-10 19:37:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:49,055 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9466 transitions. [2022-01-10 19:37:49,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9466 transitions. [2022-01-10 19:37:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:49,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:49,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:49,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:37:49,058 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:49,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1983316660, now seen corresponding path program 1 times [2022-01-10 19:37:49,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:49,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524168720] [2022-01-10 19:37:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:49,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:49,099 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 19:37:49,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:49,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524168720] [2022-01-10 19:37:49,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524168720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:49,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:49,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:49,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526932791] [2022-01-10 19:37:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:49,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:49,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:49,101 INFO L87 Difference]: Start difference. First operand 5892 states and 9466 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:49,217 INFO L93 Difference]: Finished difference Result 9636 states and 14932 transitions. [2022-01-10 19:37:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:49,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:49,227 INFO L225 Difference]: With dead ends: 9636 [2022-01-10 19:37:49,227 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:49,232 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 19:37:49,233 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6890 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6890 SdHoareTripleChecker+Valid, 6912 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 19:37:49,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6890 Valid, 6912 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6060451689590762) internal successors, (9458), 5891 states have internal predecessors, (9458), 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 19:37:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9458 transitions. [2022-01-10 19:37:49,356 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9458 transitions. Word has length 176 [2022-01-10 19:37:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:49,356 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9458 transitions. [2022-01-10 19:37:49,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9458 transitions. [2022-01-10 19:37:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:49,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:49,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:49,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:37:49,358 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:49,359 INFO L85 PathProgramCache]: Analyzing trace with hash -168419180, now seen corresponding path program 1 times [2022-01-10 19:37:49,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:49,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145922826] [2022-01-10 19:37:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:49,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:37:49,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145922826] [2022-01-10 19:37:49,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145922826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:49,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:49,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:49,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900565003] [2022-01-10 19:37:49,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:49,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:49,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:49,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:49,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:49,401 INFO L87 Difference]: Start difference. First operand 5892 states and 9458 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:49,514 INFO L93 Difference]: Finished difference Result 9635 states and 14915 transitions. [2022-01-10 19:37:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:49,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:49,525 INFO L225 Difference]: With dead ends: 9635 [2022-01-10 19:37:49,526 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:49,532 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 19:37:49,534 INFO L933 BasicCegarLoop]: 6907 mSDtfsCounter, 6884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 6907 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 19:37:49,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 6907 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:49,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:49,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6046867040244523) internal successors, (9450), 5891 states have internal predecessors, (9450), 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 19:37:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9450 transitions. [2022-01-10 19:37:49,655 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9450 transitions. Word has length 176 [2022-01-10 19:37:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:49,656 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9450 transitions. [2022-01-10 19:37:49,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9450 transitions. [2022-01-10 19:37:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:49,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:49,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:49,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:37:49,660 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1424737972, now seen corresponding path program 1 times [2022-01-10 19:37:49,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:49,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103097295] [2022-01-10 19:37:49,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:49,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:49,701 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 19:37:49,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:49,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103097295] [2022-01-10 19:37:49,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103097295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:49,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:49,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:49,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694214082] [2022-01-10 19:37:49,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:49,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:49,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:49,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:49,702 INFO L87 Difference]: Start difference. First operand 5892 states and 9450 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:49,818 INFO L93 Difference]: Finished difference Result 9634 states and 14898 transitions. [2022-01-10 19:37:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:49,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:49,829 INFO L225 Difference]: With dead ends: 9634 [2022-01-10 19:37:49,829 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:49,836 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 19:37:49,836 INFO L933 BasicCegarLoop]: 6902 mSDtfsCounter, 6878 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6878 SdHoareTripleChecker+Valid, 6902 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 19:37:49,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6878 Valid, 6902 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6033282390898285) internal successors, (9442), 5891 states have internal predecessors, (9442), 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 19:37:50,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9442 transitions. [2022-01-10 19:37:50,085 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9442 transitions. Word has length 176 [2022-01-10 19:37:50,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:50,085 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9442 transitions. [2022-01-10 19:37:50,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:50,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9442 transitions. [2022-01-10 19:37:50,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:50,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:50,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:50,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:37:50,088 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:50,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:50,088 INFO L85 PathProgramCache]: Analyzing trace with hash -879174508, now seen corresponding path program 1 times [2022-01-10 19:37:50,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:50,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911680669] [2022-01-10 19:37:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:50,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:50,125 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 19:37:50,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:50,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911680669] [2022-01-10 19:37:50,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911680669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:50,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:50,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:50,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084416187] [2022-01-10 19:37:50,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:50,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:50,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:50,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:50,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:50,127 INFO L87 Difference]: Start difference. First operand 5892 states and 9442 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:50,287 INFO L93 Difference]: Finished difference Result 9633 states and 14881 transitions. [2022-01-10 19:37:50,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:50,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:50,299 INFO L225 Difference]: With dead ends: 9633 [2022-01-10 19:37:50,299 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:50,307 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 19:37:50,307 INFO L933 BasicCegarLoop]: 6897 mSDtfsCounter, 6872 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 6897 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 19:37:50,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6872 Valid, 6897 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:50,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:50,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6019697741552046) internal successors, (9434), 5891 states have internal predecessors, (9434), 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 19:37:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9434 transitions. [2022-01-10 19:37:50,478 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9434 transitions. Word has length 176 [2022-01-10 19:37:50,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:50,479 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9434 transitions. [2022-01-10 19:37:50,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:50,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9434 transitions. [2022-01-10 19:37:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:50,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:50,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:50,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:37:50,481 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:50,482 INFO L85 PathProgramCache]: Analyzing trace with hash 570526388, now seen corresponding path program 1 times [2022-01-10 19:37:50,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:50,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723398321] [2022-01-10 19:37:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:50,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:50,526 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 19:37:50,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:50,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723398321] [2022-01-10 19:37:50,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723398321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:50,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:50,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:50,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289756235] [2022-01-10 19:37:50,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:50,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:50,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:50,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:50,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:50,528 INFO L87 Difference]: Start difference. First operand 5892 states and 9434 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:50,688 INFO L93 Difference]: Finished difference Result 9632 states and 14864 transitions. [2022-01-10 19:37:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:50,698 INFO L225 Difference]: With dead ends: 9632 [2022-01-10 19:37:50,698 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:50,704 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 19:37:50,704 INFO L933 BasicCegarLoop]: 6892 mSDtfsCounter, 6866 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6866 SdHoareTripleChecker+Valid, 6892 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 19:37:50,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6866 Valid, 6892 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:50,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6006113092205807) internal successors, (9426), 5891 states have internal predecessors, (9426), 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 19:37:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9426 transitions. [2022-01-10 19:37:50,872 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9426 transitions. Word has length 176 [2022-01-10 19:37:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:50,872 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9426 transitions. [2022-01-10 19:37:50,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9426 transitions. [2022-01-10 19:37:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:50,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:50,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:50,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:37:50,875 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash -491087724, now seen corresponding path program 1 times [2022-01-10 19:37:50,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:50,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465579536] [2022-01-10 19:37:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:50,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:50,926 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 19:37:50,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:50,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465579536] [2022-01-10 19:37:50,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465579536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:50,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:50,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:50,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880615228] [2022-01-10 19:37:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:50,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:50,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:50,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:50,929 INFO L87 Difference]: Start difference. First operand 5892 states and 9426 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:51,149 INFO L93 Difference]: Finished difference Result 9631 states and 14847 transitions. [2022-01-10 19:37:51,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:51,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:51,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:51,163 INFO L225 Difference]: With dead ends: 9631 [2022-01-10 19:37:51,163 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:51,172 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 19:37:51,173 INFO L933 BasicCegarLoop]: 6887 mSDtfsCounter, 6860 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 6887 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 19:37:51,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6860 Valid, 6887 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5992528442859568) internal successors, (9418), 5891 states have internal predecessors, (9418), 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 19:37:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9418 transitions. [2022-01-10 19:37:51,390 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9418 transitions. Word has length 176 [2022-01-10 19:37:51,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:51,390 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9418 transitions. [2022-01-10 19:37:51,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:51,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9418 transitions. [2022-01-10 19:37:51,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:51,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:51,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:51,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:37:51,393 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:51,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash 28855988, now seen corresponding path program 1 times [2022-01-10 19:37:51,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:51,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750364916] [2022-01-10 19:37:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:51,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:51,451 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 19:37:51,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:51,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750364916] [2022-01-10 19:37:51,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750364916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:51,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:51,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:51,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102868678] [2022-01-10 19:37:51,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:51,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:51,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:51,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:51,453 INFO L87 Difference]: Start difference. First operand 5892 states and 9418 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:51,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:51,686 INFO L93 Difference]: Finished difference Result 9630 states and 14830 transitions. [2022-01-10 19:37:51,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:51,699 INFO L225 Difference]: With dead ends: 9630 [2022-01-10 19:37:51,699 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:51,707 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 19:37:51,707 INFO L933 BasicCegarLoop]: 6882 mSDtfsCounter, 6854 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6854 SdHoareTripleChecker+Valid, 6882 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 19:37:51,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6854 Valid, 6882 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.597894379351333) internal successors, (9410), 5891 states have internal predecessors, (9410), 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 19:37:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9410 transitions. [2022-01-10 19:37:51,916 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9410 transitions. Word has length 176 [2022-01-10 19:37:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:51,916 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9410 transitions. [2022-01-10 19:37:51,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9410 transitions. [2022-01-10 19:37:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:51,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:51,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:51,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:37:51,919 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:51,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1894034284, now seen corresponding path program 1 times [2022-01-10 19:37:51,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:51,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269973694] [2022-01-10 19:37:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:51,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:51,969 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 19:37:51,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:51,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269973694] [2022-01-10 19:37:51,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269973694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:51,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:51,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:51,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018788986] [2022-01-10 19:37:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:51,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:51,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:51,972 INFO L87 Difference]: Start difference. First operand 5892 states and 9410 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:52,170 INFO L93 Difference]: Finished difference Result 9629 states and 14813 transitions. [2022-01-10 19:37:52,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:52,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:52,179 INFO L225 Difference]: With dead ends: 9629 [2022-01-10 19:37:52,179 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:52,185 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 19:37:52,186 INFO L933 BasicCegarLoop]: 6845 mSDtfsCounter, 6690 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6690 SdHoareTripleChecker+Valid, 6983 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:52,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6690 Valid, 6983 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5914416709118695) internal successors, (9372), 5891 states have internal predecessors, (9372), 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 19:37:52,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9372 transitions. [2022-01-10 19:37:52,370 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9372 transitions. Word has length 176 [2022-01-10 19:37:52,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:52,370 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9372 transitions. [2022-01-10 19:37:52,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:52,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9372 transitions. [2022-01-10 19:37:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:52,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:52,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:52,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:37:52,372 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2118058445, now seen corresponding path program 1 times [2022-01-10 19:37:52,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:52,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400391249] [2022-01-10 19:37:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:52,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:52,407 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 19:37:52,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:52,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400391249] [2022-01-10 19:37:52,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400391249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:52,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:52,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:52,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317154493] [2022-01-10 19:37:52,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:52,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:52,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:52,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:52,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:52,408 INFO L87 Difference]: Start difference. First operand 5892 states and 9372 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:52,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:52,569 INFO L93 Difference]: Finished difference Result 9628 states and 14736 transitions. [2022-01-10 19:37:52,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:52,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:52,579 INFO L225 Difference]: With dead ends: 9628 [2022-01-10 19:37:52,579 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:52,583 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 19:37:52,584 INFO L933 BasicCegarLoop]: 6824 mSDtfsCounter, 6669 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:52,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 6961 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5849889624724063) internal successors, (9334), 5891 states have internal predecessors, (9334), 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 19:37:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9334 transitions. [2022-01-10 19:37:52,718 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9334 transitions. Word has length 176 [2022-01-10 19:37:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:52,719 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9334 transitions. [2022-01-10 19:37:52,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:52,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9334 transitions. [2022-01-10 19:37:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:52,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:52,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:52,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:37:52,720 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1151913262, now seen corresponding path program 1 times [2022-01-10 19:37:52,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:52,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126042754] [2022-01-10 19:37:52,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:52,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:52,754 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 19:37:52,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126042754] [2022-01-10 19:37:52,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126042754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:52,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:52,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:52,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865599963] [2022-01-10 19:37:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:52,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:52,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:52,755 INFO L87 Difference]: Start difference. First operand 5892 states and 9334 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:52,929 INFO L93 Difference]: Finished difference Result 9627 states and 14659 transitions. [2022-01-10 19:37:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:52,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:52,942 INFO L225 Difference]: With dead ends: 9627 [2022-01-10 19:37:52,943 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:52,948 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 19:37:52,948 INFO L933 BasicCegarLoop]: 6803 mSDtfsCounter, 6648 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6648 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:52,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6648 Valid, 6939 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5785362540329428) internal successors, (9296), 5891 states have internal predecessors, (9296), 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 19:37:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9296 transitions. [2022-01-10 19:37:53,083 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9296 transitions. Word has length 176 [2022-01-10 19:37:53,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:53,083 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9296 transitions. [2022-01-10 19:37:53,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9296 transitions. [2022-01-10 19:37:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:53,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:53,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:53,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:37:53,085 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1313608975, now seen corresponding path program 1 times [2022-01-10 19:37:53,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:53,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050381571] [2022-01-10 19:37:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:53,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:53,126 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 19:37:53,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:53,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050381571] [2022-01-10 19:37:53,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050381571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:53,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:53,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:53,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821159128] [2022-01-10 19:37:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:53,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:53,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:53,128 INFO L87 Difference]: Start difference. First operand 5892 states and 9296 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:53,302 INFO L93 Difference]: Finished difference Result 9626 states and 14582 transitions. [2022-01-10 19:37:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:53,312 INFO L225 Difference]: With dead ends: 9626 [2022-01-10 19:37:53,312 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:53,317 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 19:37:53,317 INFO L933 BasicCegarLoop]: 6782 mSDtfsCounter, 6627 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6627 SdHoareTripleChecker+Valid, 6917 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:53,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6627 Valid, 6917 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5720835455934794) internal successors, (9258), 5891 states have internal predecessors, (9258), 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 19:37:53,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9258 transitions. [2022-01-10 19:37:53,457 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9258 transitions. Word has length 176 [2022-01-10 19:37:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:53,458 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9258 transitions. [2022-01-10 19:37:53,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9258 transitions. [2022-01-10 19:37:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:53,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:53,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:53,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:37:53,459 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -374014448, now seen corresponding path program 1 times [2022-01-10 19:37:53,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:53,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499844291] [2022-01-10 19:37:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:53,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:53,503 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 19:37:53,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:53,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499844291] [2022-01-10 19:37:53,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499844291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:53,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:53,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:53,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987710832] [2022-01-10 19:37:53,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:53,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:53,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:53,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:53,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:53,505 INFO L87 Difference]: Start difference. First operand 5892 states and 9258 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:53,675 INFO L93 Difference]: Finished difference Result 9625 states and 14505 transitions. [2022-01-10 19:37:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:53,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:53,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:53,685 INFO L225 Difference]: With dead ends: 9625 [2022-01-10 19:37:53,685 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:53,690 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 19:37:53,691 INFO L933 BasicCegarLoop]: 6761 mSDtfsCounter, 6606 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6606 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:53,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6606 Valid, 6895 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.565630837154016) internal successors, (9220), 5891 states have internal predecessors, (9220), 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 19:37:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9220 transitions. [2022-01-10 19:37:53,886 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9220 transitions. Word has length 176 [2022-01-10 19:37:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:53,886 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9220 transitions. [2022-01-10 19:37:53,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9220 transitions. [2022-01-10 19:37:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:53,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:53,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:53,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:37:53,887 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:53,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2107603793, now seen corresponding path program 1 times [2022-01-10 19:37:53,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:53,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216421629] [2022-01-10 19:37:53,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:53,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:53,931 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 19:37:53,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:53,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216421629] [2022-01-10 19:37:53,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216421629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:53,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:53,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:53,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341279165] [2022-01-10 19:37:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:53,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:53,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:53,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:53,932 INFO L87 Difference]: Start difference. First operand 5892 states and 9220 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:54,109 INFO L93 Difference]: Finished difference Result 9624 states and 14428 transitions. [2022-01-10 19:37:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:54,117 INFO L225 Difference]: With dead ends: 9624 [2022-01-10 19:37:54,117 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:54,121 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 19:37:54,122 INFO L933 BasicCegarLoop]: 6740 mSDtfsCounter, 6585 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:54,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6585 Valid, 6873 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5591781287145525) internal successors, (9182), 5891 states have internal predecessors, (9182), 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 19:37:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9182 transitions. [2022-01-10 19:37:54,274 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9182 transitions. Word has length 176 [2022-01-10 19:37:54,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:54,274 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9182 transitions. [2022-01-10 19:37:54,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:54,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9182 transitions. [2022-01-10 19:37:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:54,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:54,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:54,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:37:54,279 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1898985038, now seen corresponding path program 1 times [2022-01-10 19:37:54,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:54,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959702865] [2022-01-10 19:37:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:54,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:54,334 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 19:37:54,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:54,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959702865] [2022-01-10 19:37:54,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959702865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:54,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:54,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:54,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977096770] [2022-01-10 19:37:54,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:54,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:54,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:54,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:54,336 INFO L87 Difference]: Start difference. First operand 5892 states and 9182 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:54,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:54,517 INFO L93 Difference]: Finished difference Result 9623 states and 14351 transitions. [2022-01-10 19:37:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:54,525 INFO L225 Difference]: With dead ends: 9623 [2022-01-10 19:37:54,525 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:54,530 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 19:37:54,531 INFO L933 BasicCegarLoop]: 6719 mSDtfsCounter, 6564 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6564 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:54,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6564 Valid, 6851 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.552725420275089) internal successors, (9144), 5891 states have internal predecessors, (9144), 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 19:37:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9144 transitions. [2022-01-10 19:37:54,684 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9144 transitions. Word has length 176 [2022-01-10 19:37:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:54,684 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9144 transitions. [2022-01-10 19:37:54,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9144 transitions. [2022-01-10 19:37:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:54,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:54,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:54,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:37:54,687 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2111982445, now seen corresponding path program 1 times [2022-01-10 19:37:54,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:54,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435819848] [2022-01-10 19:37:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:54,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:54,743 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 19:37:54,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:54,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435819848] [2022-01-10 19:37:54,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435819848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:54,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:54,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:54,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406777401] [2022-01-10 19:37:54,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:54,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:54,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:54,745 INFO L87 Difference]: Start difference. First operand 5892 states and 9144 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:54,929 INFO L93 Difference]: Finished difference Result 9622 states and 14274 transitions. [2022-01-10 19:37:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:54,936 INFO L225 Difference]: With dead ends: 9622 [2022-01-10 19:37:54,936 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:54,941 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 19:37:54,942 INFO L933 BasicCegarLoop]: 6698 mSDtfsCounter, 6543 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:54,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 6829 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5462727118356256) internal successors, (9106), 5891 states have internal predecessors, (9106), 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 19:37:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9106 transitions. [2022-01-10 19:37:55,110 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9106 transitions. Word has length 176 [2022-01-10 19:37:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:55,110 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9106 transitions. [2022-01-10 19:37:55,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9106 transitions. [2022-01-10 19:37:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:55,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:55,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:55,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:37:55,113 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:55,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash -167486580, now seen corresponding path program 1 times [2022-01-10 19:37:55,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:55,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030011446] [2022-01-10 19:37:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:55,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:55,149 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 19:37:55,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030011446] [2022-01-10 19:37:55,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030011446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:55,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:55,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:55,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051904603] [2022-01-10 19:37:55,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:55,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:55,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:55,150 INFO L87 Difference]: Start difference. First operand 5892 states and 9106 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:55,364 INFO L93 Difference]: Finished difference Result 9621 states and 14197 transitions. [2022-01-10 19:37:55,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:55,370 INFO L225 Difference]: With dead ends: 9621 [2022-01-10 19:37:55,370 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:55,372 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 19:37:55,373 INFO L933 BasicCegarLoop]: 6677 mSDtfsCounter, 6522 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6522 SdHoareTripleChecker+Valid, 6807 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:55,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6522 Valid, 6807 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:55,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5398200033961624) internal successors, (9068), 5891 states have internal predecessors, (9068), 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 19:37:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9068 transitions. [2022-01-10 19:37:55,524 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9068 transitions. Word has length 176 [2022-01-10 19:37:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:55,524 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9068 transitions. [2022-01-10 19:37:55,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9068 transitions. [2022-01-10 19:37:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:55,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:55,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:55,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:37:55,526 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:55,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:55,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1953186005, now seen corresponding path program 1 times [2022-01-10 19:37:55,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:55,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178423622] [2022-01-10 19:37:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:55,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:55,560 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 19:37:55,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:55,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178423622] [2022-01-10 19:37:55,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178423622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:55,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:55,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:55,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694508494] [2022-01-10 19:37:55,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:55,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:55,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:55,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:55,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:55,561 INFO L87 Difference]: Start difference. First operand 5892 states and 9068 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:55,737 INFO L93 Difference]: Finished difference Result 9620 states and 14120 transitions. [2022-01-10 19:37:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:55,743 INFO L225 Difference]: With dead ends: 9620 [2022-01-10 19:37:55,743 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:55,746 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 19:37:55,747 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 6501 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:55,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6501 Valid, 6785 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:55,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:55,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.533367294956699) internal successors, (9030), 5891 states have internal predecessors, (9030), 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 19:37:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9030 transitions. [2022-01-10 19:37:55,907 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9030 transitions. Word has length 176 [2022-01-10 19:37:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:55,908 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9030 transitions. [2022-01-10 19:37:55,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9030 transitions. [2022-01-10 19:37:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:55,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:55,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:55,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:37:55,909 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1236069834, now seen corresponding path program 1 times [2022-01-10 19:37:55,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:55,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458719902] [2022-01-10 19:37:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:55,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:55,969 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 19:37:55,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:55,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458719902] [2022-01-10 19:37:55,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458719902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:55,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:55,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:55,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193965680] [2022-01-10 19:37:55,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:55,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:55,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:55,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:55,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:55,970 INFO L87 Difference]: Start difference. First operand 5892 states and 9030 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:56,182 INFO L93 Difference]: Finished difference Result 9618 states and 14041 transitions. [2022-01-10 19:37:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:56,189 INFO L225 Difference]: With dead ends: 9618 [2022-01-10 19:37:56,189 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:56,194 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 19:37:56,195 INFO L933 BasicCegarLoop]: 6635 mSDtfsCounter, 6479 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:56,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6479 Valid, 6763 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:56,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:56,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5269145865172356) internal successors, (8992), 5891 states have internal predecessors, (8992), 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 19:37:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8992 transitions. [2022-01-10 19:37:56,366 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8992 transitions. Word has length 176 [2022-01-10 19:37:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:56,366 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8992 transitions. [2022-01-10 19:37:56,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8992 transitions. [2022-01-10 19:37:56,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:56,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:56,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:56,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:37:56,368 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:56,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:56,368 INFO L85 PathProgramCache]: Analyzing trace with hash -33438806, now seen corresponding path program 1 times [2022-01-10 19:37:56,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:56,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358679642] [2022-01-10 19:37:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:56,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:56,400 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 19:37:56,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:56,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358679642] [2022-01-10 19:37:56,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358679642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:56,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:56,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:56,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858156534] [2022-01-10 19:37:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:56,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:56,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:56,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:56,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:56,402 INFO L87 Difference]: Start difference. First operand 5892 states and 8992 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:56,593 INFO L93 Difference]: Finished difference Result 9617 states and 13964 transitions. [2022-01-10 19:37:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:56,599 INFO L225 Difference]: With dead ends: 9617 [2022-01-10 19:37:56,600 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:56,604 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 19:37:56,604 INFO L933 BasicCegarLoop]: 6614 mSDtfsCounter, 6458 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6458 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:56,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6458 Valid, 6741 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:56,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.520461878077772) internal successors, (8954), 5891 states have internal predecessors, (8954), 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 19:37:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8954 transitions. [2022-01-10 19:37:56,843 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8954 transitions. Word has length 176 [2022-01-10 19:37:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:56,844 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8954 transitions. [2022-01-10 19:37:56,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:56,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8954 transitions. [2022-01-10 19:37:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:56,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:56,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:56,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:37:56,847 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:56,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1079379017, now seen corresponding path program 1 times [2022-01-10 19:37:56,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432678030] [2022-01-10 19:37:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:56,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:56,884 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 19:37:56,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:56,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432678030] [2022-01-10 19:37:56,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432678030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:56,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:56,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:56,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164158411] [2022-01-10 19:37:56,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:56,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:56,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:56,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:56,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:56,886 INFO L87 Difference]: Start difference. First operand 5892 states and 8954 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:57,102 INFO L93 Difference]: Finished difference Result 9616 states and 13887 transitions. [2022-01-10 19:37:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:57,110 INFO L225 Difference]: With dead ends: 9616 [2022-01-10 19:37:57,110 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:37:57,113 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 19:37:57,114 INFO L933 BasicCegarLoop]: 6593 mSDtfsCounter, 6437 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6437 SdHoareTripleChecker+Valid, 6719 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:57,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6437 Valid, 6719 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:37:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:37:57,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5140091696383087) internal successors, (8916), 5891 states have internal predecessors, (8916), 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 19:37:57,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8916 transitions. [2022-01-10 19:37:57,297 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8916 transitions. Word has length 176 [2022-01-10 19:37:57,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:57,297 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8916 transitions. [2022-01-10 19:37:57,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:57,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8916 transitions. [2022-01-10 19:37:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:57,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:57,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:57,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:37:57,299 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2026221544, now seen corresponding path program 1 times [2022-01-10 19:37:57,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:57,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859850873] [2022-01-10 19:37:57,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:57,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:57,352 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 19:37:57,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:57,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859850873] [2022-01-10 19:37:57,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859850873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:57,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:57,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:37:57,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549903571] [2022-01-10 19:37:57,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:57,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:37:57,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:57,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:37:57,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:37:57,354 INFO L87 Difference]: Start difference. First operand 5892 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 19:37:57,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:57,784 INFO L93 Difference]: Finished difference Result 10830 states and 15488 transitions. [2022-01-10 19:37:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:37:57,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:57,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:57,794 INFO L225 Difference]: With dead ends: 10830 [2022-01-10 19:37:57,794 INFO L226 Difference]: Without dead ends: 7120 [2022-01-10 19:37:57,800 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 19:37:57,800 INFO L933 BasicCegarLoop]: 6774 mSDtfsCounter, 7477 mSDsluCounter, 14429 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7477 SdHoareTripleChecker+Valid, 21203 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:57,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7477 Valid, 21203 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:37:57,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-01-10 19:37:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 5898. [2022-01-10 19:37:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5895 states have (on average 1.5083969465648854) internal successors, (8892), 5897 states have internal predecessors, (8892), 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 19:37:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8892 transitions. [2022-01-10 19:37:58,044 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8892 transitions. Word has length 176 [2022-01-10 19:37:58,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:58,044 INFO L470 AbstractCegarLoop]: Abstraction has 5898 states and 8892 transitions. [2022-01-10 19:37:58,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 19:37:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8892 transitions. [2022-01-10 19:37:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:58,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:58,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:58,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:37:58,046 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -982263447, now seen corresponding path program 1 times [2022-01-10 19:37:58,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:58,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819261785] [2022-01-10 19:37:58,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:58,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:37:58,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:58,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819261785] [2022-01-10 19:37:58,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819261785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:58,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:58,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:37:58,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89838562] [2022-01-10 19:37:58,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:58,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:37:58,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:37:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:37:58,102 INFO L87 Difference]: Start difference. First operand 5898 states and 8892 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 19:37:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:58,631 INFO L93 Difference]: Finished difference Result 11719 states and 16550 transitions. [2022-01-10 19:37:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:37:58,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:58,643 INFO L225 Difference]: With dead ends: 11719 [2022-01-10 19:37:58,643 INFO L226 Difference]: Without dead ends: 8038 [2022-01-10 19:37:58,648 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 19:37:58,649 INFO L933 BasicCegarLoop]: 6666 mSDtfsCounter, 6587 mSDsluCounter, 16373 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6587 SdHoareTripleChecker+Valid, 23039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:58,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6587 Valid, 23039 Invalid, 190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:37:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2022-01-10 19:37:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 5904. [2022-01-10 19:37:58,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5904 states, 5901 states have (on average 1.5027961362480935) internal successors, (8868), 5903 states have internal predecessors, (8868), 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 19:37:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5904 states to 5904 states and 8868 transitions. [2022-01-10 19:37:58,909 INFO L78 Accepts]: Start accepts. Automaton has 5904 states and 8868 transitions. Word has length 176 [2022-01-10 19:37:58,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:58,909 INFO L470 AbstractCegarLoop]: Abstraction has 5904 states and 8868 transitions. [2022-01-10 19:37:58,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 19:37:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5904 states and 8868 transitions. [2022-01-10 19:37:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:58,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:58,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:58,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:37:58,911 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash 872082090, now seen corresponding path program 1 times [2022-01-10 19:37:58,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:58,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187181291] [2022-01-10 19:37:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:58,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:58,956 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 19:37:58,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:58,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187181291] [2022-01-10 19:37:58,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187181291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:58,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:58,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:58,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271774601] [2022-01-10 19:37:58,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:58,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:58,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:58,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:58,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:58,958 INFO L87 Difference]: Start difference. First operand 5904 states and 8868 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:59,420 INFO L93 Difference]: Finished difference Result 12942 states and 17995 transitions. [2022-01-10 19:37:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:37:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:59,432 INFO L225 Difference]: With dead ends: 12942 [2022-01-10 19:37:59,432 INFO L226 Difference]: Without dead ends: 9278 [2022-01-10 19:37:59,444 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 19:37:59,444 INFO L933 BasicCegarLoop]: 6562 mSDtfsCounter, 6292 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6292 SdHoareTripleChecker+Valid, 8931 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:59,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6292 Valid, 8931 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2022-01-10 19:37:59,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9270. [2022-01-10 19:37:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.424409193913888) internal successors, (13200), 9269 states have internal predecessors, (13200), 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 19:37:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13200 transitions. [2022-01-10 19:37:59,942 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13200 transitions. Word has length 176 [2022-01-10 19:37:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:59,942 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13200 transitions. [2022-01-10 19:37:59,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:37:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13200 transitions. [2022-01-10 19:37:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:37:59,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:59,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:37:59,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 19:37:59,943 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -467962199, now seen corresponding path program 1 times [2022-01-10 19:37:59,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:59,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792454367] [2022-01-10 19:37:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:59,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:59,993 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 19:37:59,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:59,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792454367] [2022-01-10 19:37:59,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792454367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:59,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:59,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:59,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920257647] [2022-01-10 19:37:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:59,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:59,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:59,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:59,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:59,994 INFO L87 Difference]: Start difference. First operand 9270 states and 13200 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:38:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:00,442 INFO L93 Difference]: Finished difference Result 16375 states and 22383 transitions. [2022-01-10 19:38:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:38:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:38:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:00,454 INFO L225 Difference]: With dead ends: 16375 [2022-01-10 19:38:00,454 INFO L226 Difference]: Without dead ends: 9270 [2022-01-10 19:38:00,460 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 19:38:00,460 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6275 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6275 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:38:00,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6275 Valid, 6662 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:38:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9270 states. [2022-01-10 19:38:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9270 to 9270. [2022-01-10 19:38:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.4197690730549262) internal successors, (13157), 9269 states have internal predecessors, (13157), 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 19:38:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13157 transitions. [2022-01-10 19:38:00,909 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13157 transitions. Word has length 176 [2022-01-10 19:38:00,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:00,909 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13157 transitions. [2022-01-10 19:38:00,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:38:00,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13157 transitions. [2022-01-10 19:38:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:38:00,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:00,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:38:00,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 19:38:00,910 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:00,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1312434070, now seen corresponding path program 1 times [2022-01-10 19:38:00,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:00,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296716648] [2022-01-10 19:38:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:00,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:00,963 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 19:38:00,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:00,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296716648] [2022-01-10 19:38:00,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296716648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:00,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:00,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:38:00,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031552730] [2022-01-10 19:38:00,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:00,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:38:00,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:38:00,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:38:00,964 INFO L87 Difference]: Start difference. First operand 9270 states and 13157 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:38:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:01,835 INFO L93 Difference]: Finished difference Result 23256 states and 31167 transitions. [2022-01-10 19:38:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:38:01,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2022-01-10 19:38:01,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:01,856 INFO L225 Difference]: With dead ends: 23256 [2022-01-10 19:38:01,856 INFO L226 Difference]: Without dead ends: 16156 [2022-01-10 19:38:01,865 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 19:38:01,865 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6337 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6337 SdHoareTripleChecker+Valid, 8890 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:38:01,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6337 Valid, 8890 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:38:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16156 states. [2022-01-10 19:38:02,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16156 to 15758. [2022-01-10 19:38:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15758 states, 15755 states have (on average 1.3622976832751508) internal successors, (21463), 15757 states have internal predecessors, (21463), 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 19:38:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15758 states to 15758 states and 21463 transitions. [2022-01-10 19:38:02,720 INFO L78 Accepts]: Start accepts. Automaton has 15758 states and 21463 transitions. Word has length 176 [2022-01-10 19:38:02,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:02,721 INFO L470 AbstractCegarLoop]: Abstraction has 15758 states and 21463 transitions. [2022-01-10 19:38:02,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 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 19:38:02,721 INFO L276 IsEmpty]: Start isEmpty. Operand 15758 states and 21463 transitions. [2022-01-10 19:38:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:38:02,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:02,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:02,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 19:38:02,728 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:02,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1613416453, now seen corresponding path program 1 times [2022-01-10 19:38:02,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:02,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330480394] [2022-01-10 19:38:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:02,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:02,786 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 19:38:02,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:02,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330480394] [2022-01-10 19:38:02,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330480394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:02,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:02,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:38:02,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000320738] [2022-01-10 19:38:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:02,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:38:02,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:38:02,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:38:02,787 INFO L87 Difference]: Start difference. First operand 15758 states and 21463 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 19:38:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:04,418 INFO L93 Difference]: Finished difference Result 42599 states and 55958 transitions. [2022-01-10 19:38:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:38:04,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 286 [2022-01-10 19:38:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:04,456 INFO L225 Difference]: With dead ends: 42599 [2022-01-10 19:38:04,456 INFO L226 Difference]: Without dead ends: 29017 [2022-01-10 19:38:04,472 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 19:38:04,475 INFO L933 BasicCegarLoop]: 6536 mSDtfsCounter, 6380 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6380 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:38:04,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6380 Valid, 8887 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:38:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29017 states. [2022-01-10 19:38:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29017 to 28281. [2022-01-10 19:38:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28281 states, 28278 states have (on average 1.3255887969446212) internal successors, (37485), 28280 states have internal predecessors, (37485), 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 19:38:06,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28281 states to 28281 states and 37485 transitions. [2022-01-10 19:38:06,252 INFO L78 Accepts]: Start accepts. Automaton has 28281 states and 37485 transitions. Word has length 286 [2022-01-10 19:38:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:06,252 INFO L470 AbstractCegarLoop]: Abstraction has 28281 states and 37485 transitions. [2022-01-10 19:38:06,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 19:38:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 28281 states and 37485 transitions. [2022-01-10 19:38:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:38:06,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:06,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:06,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 19:38:06,265 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1329010747, now seen corresponding path program 1 times [2022-01-10 19:38:06,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:06,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523187241] [2022-01-10 19:38:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:06,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:06,347 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 19:38:06,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:06,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523187241] [2022-01-10 19:38:06,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523187241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:06,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:06,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:38:06,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653817682] [2022-01-10 19:38:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:06,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:38:06,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:06,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:38:06,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:38:06,348 INFO L87 Difference]: Start difference. First operand 28281 states and 37485 transitions. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 19:38:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:09,691 INFO L93 Difference]: Finished difference Result 78855 states and 102729 transitions. [2022-01-10 19:38:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:38:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 286 [2022-01-10 19:38:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:09,760 INFO L225 Difference]: With dead ends: 78855 [2022-01-10 19:38:09,761 INFO L226 Difference]: Without dead ends: 52837 [2022-01-10 19:38:09,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 19:38:09,784 INFO L933 BasicCegarLoop]: 6495 mSDtfsCounter, 5292 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 25584 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:38:09,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5292 Valid, 25584 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:38:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52837 states. [2022-01-10 19:38:11,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52837 to 28329. [2022-01-10 19:38:11,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28329 states, 28326 states have (on average 1.3176586881310457) internal successors, (37324), 28328 states have internal predecessors, (37324), 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 19:38:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28329 states to 28329 states and 37324 transitions. [2022-01-10 19:38:12,017 INFO L78 Accepts]: Start accepts. Automaton has 28329 states and 37324 transitions. Word has length 286 [2022-01-10 19:38:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:12,017 INFO L470 AbstractCegarLoop]: Abstraction has 28329 states and 37324 transitions. [2022-01-10 19:38:12,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 19:38:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 28329 states and 37324 transitions. [2022-01-10 19:38:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:38:12,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:12,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:12,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 19:38:12,026 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1137376637, now seen corresponding path program 1 times [2022-01-10 19:38:12,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:12,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720094999] [2022-01-10 19:38:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:12,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:12,104 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 19:38:12,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:12,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720094999] [2022-01-10 19:38:12,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720094999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:12,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:12,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:38:12,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202018854] [2022-01-10 19:38:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:12,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:38:12,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:38:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:38:12,106 INFO L87 Difference]: Start difference. First operand 28329 states and 37324 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 19:38:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:15,463 INFO L93 Difference]: Finished difference Result 79127 states and 101584 transitions. [2022-01-10 19:38:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:38:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 286 [2022-01-10 19:38:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:15,531 INFO L225 Difference]: With dead ends: 79127 [2022-01-10 19:38:15,532 INFO L226 Difference]: Without dead ends: 53091 [2022-01-10 19:38:15,556 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 19:38:15,557 INFO L933 BasicCegarLoop]: 8214 mSDtfsCounter, 6071 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6071 SdHoareTripleChecker+Valid, 10775 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 19:38:15,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6071 Valid, 10775 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:38:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53091 states. [2022-01-10 19:38:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53091 to 53087. [2022-01-10 19:38:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53087 states, 53084 states have (on average 1.2877703262753373) internal successors, (68360), 53086 states have internal predecessors, (68360), 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 19:38:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53087 states to 53087 states and 68360 transitions. [2022-01-10 19:38:19,542 INFO L78 Accepts]: Start accepts. Automaton has 53087 states and 68360 transitions. Word has length 286 [2022-01-10 19:38:19,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:19,543 INFO L470 AbstractCegarLoop]: Abstraction has 53087 states and 68360 transitions. [2022-01-10 19:38:19,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 19:38:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 53087 states and 68360 transitions. [2022-01-10 19:38:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:38:19,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:19,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:19,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 19:38:19,561 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:19,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:19,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2008198236, now seen corresponding path program 1 times [2022-01-10 19:38:19,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:19,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003908184] [2022-01-10 19:38:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:19,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:19,595 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 19:38:19,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003908184] [2022-01-10 19:38:19,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003908184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:19,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:19,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:38:19,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853984348] [2022-01-10 19:38:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:19,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:38:19,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:38:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:38:19,597 INFO L87 Difference]: Start difference. First operand 53087 states and 68360 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 19:38:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:38:23,450 INFO L93 Difference]: Finished difference Result 103715 states and 132354 transitions. [2022-01-10 19:38:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:38:23,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 286 [2022-01-10 19:38:23,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:38:23,524 INFO L225 Difference]: With dead ends: 103715 [2022-01-10 19:38:23,524 INFO L226 Difference]: Without dead ends: 52921 [2022-01-10 19:38:23,559 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 19:38:23,559 INFO L933 BasicCegarLoop]: 6537 mSDtfsCounter, 2575 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 10495 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 19:38:23,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 10495 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:38:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52921 states. [2022-01-10 19:38:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52921 to 52921. [2022-01-10 19:38:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52921 states, 52918 states have (on average 1.288011640651574) internal successors, (68159), 52920 states have internal predecessors, (68159), 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 19:38:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52921 states to 52921 states and 68159 transitions. [2022-01-10 19:38:27,355 INFO L78 Accepts]: Start accepts. Automaton has 52921 states and 68159 transitions. Word has length 286 [2022-01-10 19:38:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:38:27,355 INFO L470 AbstractCegarLoop]: Abstraction has 52921 states and 68159 transitions. [2022-01-10 19:38:27,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 19:38:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 52921 states and 68159 transitions. [2022-01-10 19:38:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-10 19:38:27,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:38:27,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:27,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 19:38:27,372 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:38:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:38:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -341005987, now seen corresponding path program 1 times [2022-01-10 19:38:27,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:38:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378744279] [2022-01-10 19:38:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:38:27,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:38:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:38:27,451 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 19:38:27,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:38:27,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378744279] [2022-01-10 19:38:27,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378744279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:38:27,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:38:27,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:38:27,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147553409] [2022-01-10 19:38:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:38:27,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:38:27,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:38:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:38:27,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:38:27,453 INFO L87 Difference]: Start difference. First operand 52921 states and 68159 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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)