/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-optional-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:33:55,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:33:55,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:33:55,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 23:33:55,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:33:55,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:33:55,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:33:55,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:33:55,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:33:55,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:33:55,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:33:55,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:33:55,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:33:55,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:33:55,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:33:55,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:33:55,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 23:33:55,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:33:55,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:33:55,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:33:55,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:33:55,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:33:55,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:33:55,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:33:55,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:33:55,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:33:55,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:33:55,238 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:33:55,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:33:55,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:33:55,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:33:55,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:33:55,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:33:55,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:33:55,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:33:55,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:33:55,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:33:55,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:33:55,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:33:55,241 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:33:55,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:33:55,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:33:55,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:33:55,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:33:55,454 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:33:55,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-optional-1.i [2022-01-10 23:33:55,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae1d7979/da258b4a95b44c14bcf11501fa9281fb/FLAGeaa3bff03 [2022-01-10 23:33:55,884 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:33:55,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-1.i [2022-01-10 23:33:55,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae1d7979/da258b4a95b44c14bcf11501fa9281fb/FLAGeaa3bff03 [2022-01-10 23:33:55,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae1d7979/da258b4a95b44c14bcf11501fa9281fb [2022-01-10 23:33:55,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:33:55,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:33:55,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:33:55,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:33:55,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:33:55,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:33:55" (1/1) ... [2022-01-10 23:33:55,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7fb62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:55, skipping insertion in model container [2022-01-10 23:33:55,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:33:55" (1/1) ... [2022-01-10 23:33:55,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:33:55,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:33:56,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-1.i[22753,22766] [2022-01-10 23:33:56,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:33:56,192 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:33:56,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-1.i[22753,22766] [2022-01-10 23:33:56,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:33:56,271 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:33:56,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56 WrapperNode [2022-01-10 23:33:56,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:33:56,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:33:56,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:33:56,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:33:56,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,307 INFO L137 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2022-01-10 23:33:56,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:33:56,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:33:56,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:33:56,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:33:56,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:33:56,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:33:56,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:33:56,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:33:56,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:56,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:33:56,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:33:56,371 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 23:33:56,385 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 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:33:56,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:33:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:33:56,496 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:33:56,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:33:56,928 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:33:56,932 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:33:56,932 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 23:33:56,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:33:56 BoogieIcfgContainer [2022-01-10 23:33:56,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:33:56,934 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:33:56,934 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:33:56,935 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:33:56,937 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:33:56" (1/1) ... [2022-01-10 23:33:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:33:57 BasicIcfg [2022-01-10 23:33:57,034 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:33:57,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:33:57,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:33:57,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:33:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:33:55" (1/4) ... [2022-01-10 23:33:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f0bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:33:57, skipping insertion in model container [2022-01-10 23:33:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:33:56" (2/4) ... [2022-01-10 23:33:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f0bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:33:57, skipping insertion in model container [2022-01-10 23:33:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:33:56" (3/4) ... [2022-01-10 23:33:57,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f0bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:33:57, skipping insertion in model container [2022-01-10 23:33:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:33:57" (4/4) ... [2022-01-10 23:33:57,040 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-optional-1.iTransformedIcfg [2022-01-10 23:33:57,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:33:57,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 23:33:57,077 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:33:57,082 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 23:33:57,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 23:33:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:33:57,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:57,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:57,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:57,108 INFO L85 PathProgramCache]: Analyzing trace with hash -848528538, now seen corresponding path program 1 times [2022-01-10 23:33:57,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:57,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143316585] [2022-01-10 23:33:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:57,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:57,247 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 23:33:57,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:57,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143316585] [2022-01-10 23:33:57,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143316585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:57,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:57,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:33:57,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725250925] [2022-01-10 23:33:57,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:57,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:33:57,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:33:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:33:57,272 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:57,281 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2022-01-10 23:33:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:33:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 23:33:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:57,287 INFO L225 Difference]: With dead ends: 50 [2022-01-10 23:33:57,288 INFO L226 Difference]: Without dead ends: 21 [2022-01-10 23:33:57,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:33:57,292 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:57,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:33:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-10 23:33:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-01-10 23:33:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2022-01-10 23:33:57,315 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 15 [2022-01-10 23:33:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:57,316 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2022-01-10 23:33:57,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-01-10 23:33:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:33:57,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:57,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:57,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:33:57,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:57,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1649487399, now seen corresponding path program 1 times [2022-01-10 23:33:57,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:57,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235537800] [2022-01-10 23:33:57,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:57,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:57,469 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 23:33:57,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:57,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235537800] [2022-01-10 23:33:57,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235537800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:57,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:57,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:33:57,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857656304] [2022-01-10 23:33:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:57,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:33:57,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:57,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:33:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:33:57,471 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:57,490 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2022-01-10 23:33:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:33:57,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 23:33:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:57,491 INFO L225 Difference]: With dead ends: 24 [2022-01-10 23:33:57,491 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 23:33:57,495 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 23:33:57,496 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:57,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:33:57,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 23:33:57,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-01-10 23:33:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-01-10 23:33:57,504 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 15 [2022-01-10 23:33:57,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:57,506 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-01-10 23:33:57,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-01-10 23:33:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:33:57,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:57,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:57,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:33:57,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1649488360, now seen corresponding path program 1 times [2022-01-10 23:33:57,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:57,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366057618] [2022-01-10 23:33:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:57,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:57,817 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 23:33:57,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:57,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366057618] [2022-01-10 23:33:57,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366057618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:57,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:57,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:33:57,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280773260] [2022-01-10 23:33:57,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:57,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:33:57,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:57,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:33:57,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:33:57,822 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:58,171 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-01-10 23:33:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:33:58,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 23:33:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:58,172 INFO L225 Difference]: With dead ends: 67 [2022-01-10 23:33:58,172 INFO L226 Difference]: Without dead ends: 54 [2022-01-10 23:33:58,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-10 23:33:58,173 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 89 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:58,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 67 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:33:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-01-10 23:33:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 32. [2022-01-10 23:33:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2022-01-10 23:33:58,179 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 15 [2022-01-10 23:33:58,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:58,179 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2022-01-10 23:33:58,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2022-01-10 23:33:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:33:58,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:58,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:58,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:33:58,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1650411881, now seen corresponding path program 1 times [2022-01-10 23:33:58,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:58,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155234835] [2022-01-10 23:33:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:58,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:58,302 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 23:33:58,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:58,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155234835] [2022-01-10 23:33:58,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155234835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:58,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:58,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:33:58,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150362286] [2022-01-10 23:33:58,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:58,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:33:58,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:58,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:33:58,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:33:58,304 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:58,663 INFO L93 Difference]: Finished difference Result 65 states and 85 transitions. [2022-01-10 23:33:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 23:33:58,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 23:33:58,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:58,664 INFO L225 Difference]: With dead ends: 65 [2022-01-10 23:33:58,664 INFO L226 Difference]: Without dead ends: 63 [2022-01-10 23:33:58,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-01-10 23:33:58,665 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 71 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:58,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 65 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:33:58,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-01-10 23:33:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2022-01-10 23:33:58,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.4) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2022-01-10 23:33:58,671 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 15 [2022-01-10 23:33:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:58,671 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2022-01-10 23:33:58,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2022-01-10 23:33:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:33:58,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:58,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:58,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:33:58,672 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1757051734, now seen corresponding path program 1 times [2022-01-10 23:33:58,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:58,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391101115] [2022-01-10 23:33:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:58,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:58,774 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 23:33:58,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:58,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391101115] [2022-01-10 23:33:58,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391101115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:58,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:58,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:33:58,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508442390] [2022-01-10 23:33:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:33:58,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:33:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:33:58,777 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:59,006 INFO L93 Difference]: Finished difference Result 76 states and 100 transitions. [2022-01-10 23:33:59,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:33:59,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 23:33:59,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:59,007 INFO L225 Difference]: With dead ends: 76 [2022-01-10 23:33:59,007 INFO L226 Difference]: Without dead ends: 59 [2022-01-10 23:33:59,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:33:59,008 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 73 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:59,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 65 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:33:59,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-01-10 23:33:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-01-10 23:33:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2022-01-10 23:33:59,013 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 15 [2022-01-10 23:33:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:59,013 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2022-01-10 23:33:59,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2022-01-10 23:33:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 23:33:59,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:59,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:59,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:33:59,014 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:59,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:59,014 INFO L85 PathProgramCache]: Analyzing trace with hash 252702265, now seen corresponding path program 1 times [2022-01-10 23:33:59,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:59,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396064485] [2022-01-10 23:33:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:59,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:59,170 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 23:33:59,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:59,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396064485] [2022-01-10 23:33:59,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396064485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:59,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:59,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:33:59,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421196815] [2022-01-10 23:33:59,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:59,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:33:59,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:33:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:33:59,172 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:59,427 INFO L93 Difference]: Finished difference Result 103 states and 133 transitions. [2022-01-10 23:33:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:33:59,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-01-10 23:33:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:59,431 INFO L225 Difference]: With dead ends: 103 [2022-01-10 23:33:59,431 INFO L226 Difference]: Without dead ends: 90 [2022-01-10 23:33:59,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-10 23:33:59,431 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 82 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:59,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 104 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:33:59,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-01-10 23:33:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 46. [2022-01-10 23:33:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2022-01-10 23:33:59,442 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 16 [2022-01-10 23:33:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:59,442 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2022-01-10 23:33:59,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2022-01-10 23:33:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 23:33:59,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:59,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:59,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:33:59,443 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:59,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1141129467, now seen corresponding path program 1 times [2022-01-10 23:33:59,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:59,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645937006] [2022-01-10 23:33:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:59,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:33:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:33:59,551 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 23:33:59,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:33:59,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645937006] [2022-01-10 23:33:59,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645937006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:33:59,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:33:59,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:33:59,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090048605] [2022-01-10 23:33:59,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:33:59,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:33:59,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:33:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:33:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:33:59,552 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:33:59,953 INFO L93 Difference]: Finished difference Result 76 states and 100 transitions. [2022-01-10 23:33:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:33:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-01-10 23:33:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:33:59,954 INFO L225 Difference]: With dead ends: 76 [2022-01-10 23:33:59,954 INFO L226 Difference]: Without dead ends: 74 [2022-01-10 23:33:59,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-10 23:33:59,954 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:33:59,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 92 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:33:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-10 23:33:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 44. [2022-01-10 23:33:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2022-01-10 23:33:59,960 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 16 [2022-01-10 23:33:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:33:59,960 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2022-01-10 23:33:59,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:33:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2022-01-10 23:33:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 23:33:59,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:33:59,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:33:59,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:33:59,961 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:33:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:33:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash -864461274, now seen corresponding path program 1 times [2022-01-10 23:33:59,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:33:59,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507164180] [2022-01-10 23:33:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:33:59,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:34:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:34:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:34:00,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:34:00,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507164180] [2022-01-10 23:34:00,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507164180] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 23:34:00,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813914403] [2022-01-10 23:34:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:34:00,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 23:34:00,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:34:00,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 23:34:00,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 23:34:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:34:00,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 105 conjunts are in the unsatisfiable core [2022-01-10 23:34:00,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 23:34:00,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-10 23:34:00,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:00,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:00,822 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 23:34:00,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:00,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:00,830 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2022-01-10 23:34:00,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 23:34:00,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:00,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 44 [2022-01-10 23:34:00,861 INFO L353 Elim1Store]: treesize reduction 34, result has 34.6 percent of original size [2022-01-10 23:34:00,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 37 [2022-01-10 23:34:00,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-01-10 23:34:00,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-01-10 23:34:00,878 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 23:34:01,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:01,040 INFO L353 Elim1Store]: treesize reduction 44, result has 26.7 percent of original size [2022-01-10 23:34:01,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 72 [2022-01-10 23:34:01,074 INFO L353 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2022-01-10 23:34:01,075 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 206 treesize of output 175 [2022-01-10 23:34:01,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,147 INFO L353 Elim1Store]: treesize reduction 294, result has 17.9 percent of original size [2022-01-10 23:34:01,147 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 114 treesize of output 146 [2022-01-10 23:34:01,176 INFO L353 Elim1Store]: treesize reduction 30, result has 50.0 percent of original size [2022-01-10 23:34:01,177 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 75 [2022-01-10 23:34:01,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,196 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 52 [2022-01-10 23:34:01,230 INFO L353 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-01-10 23:34:01,230 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 45 [2022-01-10 23:34:01,242 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 23:34:01,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 23:34:01,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 23:34:01,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-10 23:34:01,288 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-01-10 23:34:01,293 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-10 23:34:01,450 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 23:34:01,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 82 [2022-01-10 23:34:01,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-10 23:34:01,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:01,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:01,843 INFO L353 Elim1Store]: treesize reduction 160, result has 13.0 percent of original size [2022-01-10 23:34:01,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 161 [2022-01-10 23:34:01,880 INFO L353 Elim1Store]: treesize reduction 58, result has 21.6 percent of original size [2022-01-10 23:34:01,881 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 214 treesize of output 190 [2022-01-10 23:34:01,913 INFO L353 Elim1Store]: treesize reduction 79, result has 22.5 percent of original size [2022-01-10 23:34:01,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 156 [2022-01-10 23:34:01,946 INFO L353 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-01-10 23:34:01,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 135 [2022-01-10 23:34:01,977 INFO L353 Elim1Store]: treesize reduction 12, result has 84.4 percent of original size [2022-01-10 23:34:01,977 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 80 [2022-01-10 23:34:04,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:04,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:04,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:04,761 INFO L353 Elim1Store]: treesize reduction 81, result has 19.8 percent of original size [2022-01-10 23:34:04,762 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 260 treesize of output 136 [2022-01-10 23:34:04,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 23:34:04,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 23:34:04,804 INFO L353 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2022-01-10 23:34:04,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 45 [2022-01-10 23:34:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:34:04,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 23:34:30,575 WARN L228 SmtUtils]: Spent 15.57s on a formula simplification. DAG size of input: 27 DAG size of output: 24 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-01-10 23:34:30,576 INFO L353 Elim1Store]: treesize reduction 17, result has 66.0 percent of original size [2022-01-10 23:34:30,576 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 4841 treesize of output 4016