/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/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:18:46,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:18:46,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:18:46,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 23:18:46,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:18:46,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:18:46,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:18:46,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:18:46,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:18:46,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:18:46,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:18:46,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:18:46,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:18:46,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:18:46,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:18:46,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:18:46,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 23:18:46,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:18:46,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:18:46,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:18:46,469 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 23:18:46,494 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:18:46,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:18:46,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:18:46,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:18:46,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:18:46,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:18:46,495 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:18:46,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:18:46,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:18:46,496 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:18:46,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:18:46,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:18:46,497 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:18:46,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:18:46,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:18:46,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:18:46,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:18:46,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:18:46,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:18:46,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:18:46,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:18:46,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:18:46,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:18:46,718 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:18:46,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2022-01-10 23:18:46,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0f94be9/ca47771593ff410a8d8588fb468e5c72/FLAGbbd0a31e3 [2022-01-10 23:18:47,140 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:18:47,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1.c [2022-01-10 23:18:47,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0f94be9/ca47771593ff410a8d8588fb468e5c72/FLAGbbd0a31e3 [2022-01-10 23:18:47,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0f94be9/ca47771593ff410a8d8588fb468e5c72 [2022-01-10 23:18:47,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:18:47,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:18:47,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:18:47,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:18:47,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:18:47,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d027503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47, skipping insertion in model container [2022-01-10 23:18:47,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:18:47,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:18:47,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1.c[11478,11491] [2022-01-10 23:18:47,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:18:47,348 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:18:47,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1.c[11478,11491] [2022-01-10 23:18:47,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:18:47,378 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:18:47,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47 WrapperNode [2022-01-10 23:18:47,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:18:47,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:18:47,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:18:47,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:18:47,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,404 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 236 [2022-01-10 23:18:47,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:18:47,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:18:47,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:18:47,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:18:47,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:18:47,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:18:47,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:18:47,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:18:47,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:18:47,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:18:47,466 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 23:18:47,468 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 23:18:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:18:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:18:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:18:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:18:47,541 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:18:47,542 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:18:47,735 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:18:47,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:18:47,740 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 23:18:47,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:18:47 BoogieIcfgContainer [2022-01-10 23:18:47,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:18:47,760 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:18:47,760 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:18:47,761 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:18:47,765 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:18:47" (1/1) ... [2022-01-10 23:18:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:18:47 BasicIcfg [2022-01-10 23:18:47,845 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:18:47,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:18:47,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:18:47,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:18:47,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:18:47" (1/4) ... [2022-01-10 23:18:47,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729ee7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:18:47, skipping insertion in model container [2022-01-10 23:18:47,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:18:47" (2/4) ... [2022-01-10 23:18:47,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729ee7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:18:47, skipping insertion in model container [2022-01-10 23:18:47,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:18:47" (3/4) ... [2022-01-10 23:18:47,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729ee7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:18:47, skipping insertion in model container [2022-01-10 23:18:47,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:18:47" (4/4) ... [2022-01-10 23:18:47,850 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_io_1.cTransformedIcfg [2022-01-10 23:18:47,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:18:47,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 23:18:47,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:18:47,887 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 23:18:47,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 23:18:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 67 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 23:18:47,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:47,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:18:47,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash -362554732, now seen corresponding path program 1 times [2022-01-10 23:18:47,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:47,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183381065] [2022-01-10 23:18:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:47,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,047 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 23:18:48,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183381065] [2022-01-10 23:18:48,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183381065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:18:48,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:18:48,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:18:48,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093926389] [2022-01-10 23:18:48,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:18:48,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:18:48,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:48,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:18:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:18:48,070 INFO L87 Difference]: Start difference. First operand has 68 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 67 states have internal predecessors, (127), 0 states have call successors, (0), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:48,090 INFO L93 Difference]: Finished difference Result 130 states and 244 transitions. [2022-01-10 23:18:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:18:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-01-10 23:18:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:48,108 INFO L225 Difference]: With dead ends: 130 [2022-01-10 23:18:48,108 INFO L226 Difference]: Without dead ends: 57 [2022-01-10 23:18:48,110 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 23:18:48,112 INFO L933 BasicCegarLoop]: 100 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, 100 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 23:18:48,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-10 23:18:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-01-10 23:18:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 56 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 87 transitions. [2022-01-10 23:18:48,138 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 87 transitions. Word has length 9 [2022-01-10 23:18:48,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:48,143 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 87 transitions. [2022-01-10 23:18:48,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 87 transitions. [2022-01-10 23:18:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 23:18:48,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:48,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:18:48,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:18:48,147 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1676243309, now seen corresponding path program 1 times [2022-01-10 23:18:48,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:48,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072184151] [2022-01-10 23:18:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,194 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 23:18:48,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072184151] [2022-01-10 23:18:48,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072184151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:18:48,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:18:48,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:18:48,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653499718] [2022-01-10 23:18:48,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:18:48,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:18:48,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:48,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:18:48,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:18:48,197 INFO L87 Difference]: Start difference. First operand 57 states and 87 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:48,237 INFO L93 Difference]: Finished difference Result 115 states and 176 transitions. [2022-01-10 23:18:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:18:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 23:18:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:48,238 INFO L225 Difference]: With dead ends: 115 [2022-01-10 23:18:48,238 INFO L226 Difference]: Without dead ends: 60 [2022-01-10 23:18:48,239 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 23:18:48,240 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:18:48,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 154 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-01-10 23:18:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-01-10 23:18:48,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2022-01-10 23:18:48,247 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 10 [2022-01-10 23:18:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:48,247 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2022-01-10 23:18:48,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2022-01-10 23:18:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 23:18:48,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:48,248 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:18:48,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:18:48,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:48,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1209428161, now seen corresponding path program 1 times [2022-01-10 23:18:48,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:48,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309020766] [2022-01-10 23:18:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:18:48,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309020766] [2022-01-10 23:18:48,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309020766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:18:48,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:18:48,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:18:48,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710366261] [2022-01-10 23:18:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:18:48,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:18:48,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:48,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:18:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:18:48,315 INFO L87 Difference]: Start difference. First operand 60 states and 90 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 23:18:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:48,363 INFO L93 Difference]: Finished difference Result 123 states and 185 transitions. [2022-01-10 23:18:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:18:48,364 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 23:18:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:48,364 INFO L225 Difference]: With dead ends: 123 [2022-01-10 23:18:48,365 INFO L226 Difference]: Without dead ends: 66 [2022-01-10 23:18:48,365 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 23:18:48,366 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 29 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:18:48,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 130 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-10 23:18:48,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-01-10 23:18:48,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.492063492063492) internal successors, (94), 63 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions. [2022-01-10 23:18:48,373 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 15 [2022-01-10 23:18:48,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:48,373 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 94 transitions. [2022-01-10 23:18:48,374 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 23:18:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2022-01-10 23:18:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 23:18:48,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:48,374 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:18:48,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:18:48,374 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1421305274, now seen corresponding path program 1 times [2022-01-10 23:18:48,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:48,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423172984] [2022-01-10 23:18:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:18:48,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423172984] [2022-01-10 23:18:48,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423172984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:18:48,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:18:48,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:18:48,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359248465] [2022-01-10 23:18:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:18:48,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:18:48,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:18:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:18:48,466 INFO L87 Difference]: Start difference. First operand 64 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:48,514 INFO L93 Difference]: Finished difference Result 182 states and 272 transitions. [2022-01-10 23:18:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:18:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 23:18:48,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:48,515 INFO L225 Difference]: With dead ends: 182 [2022-01-10 23:18:48,515 INFO L226 Difference]: Without dead ends: 117 [2022-01-10 23:18:48,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:18:48,517 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:18:48,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 184 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:48,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-01-10 23:18:48,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2022-01-10 23:18:48,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.4953271028037383) internal successors, (160), 107 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 160 transitions. [2022-01-10 23:18:48,525 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 160 transitions. Word has length 20 [2022-01-10 23:18:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:48,526 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 160 transitions. [2022-01-10 23:18:48,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 160 transitions. [2022-01-10 23:18:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 23:18:48,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:48,534 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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 23:18:48,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:18:48,534 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:48,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1393914120, now seen corresponding path program 1 times [2022-01-10 23:18:48,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:48,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72588942] [2022-01-10 23:18:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 23:18:48,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72588942] [2022-01-10 23:18:48,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72588942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:18:48,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:18:48,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:18:48,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37080119] [2022-01-10 23:18:48,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:18:48,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:18:48,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:48,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:18:48,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:18:48,589 INFO L87 Difference]: Start difference. First operand 108 states and 160 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:48,618 INFO L93 Difference]: Finished difference Result 176 states and 262 transitions. [2022-01-10 23:18:48,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:18:48,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 27 [2022-01-10 23:18:48,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:48,619 INFO L225 Difference]: With dead ends: 176 [2022-01-10 23:18:48,619 INFO L226 Difference]: Without dead ends: 71 [2022-01-10 23:18:48,620 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 23:18:48,623 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 30 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:18:48,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-01-10 23:18:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-01-10 23:18:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 70 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 97 transitions. [2022-01-10 23:18:48,631 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 97 transitions. Word has length 27 [2022-01-10 23:18:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:48,632 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 97 transitions. [2022-01-10 23:18:48,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 97 transitions. [2022-01-10 23:18:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 23:18:48,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:18:48,633 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:18:48,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:18:48,633 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:18:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:18:48,633 INFO L85 PathProgramCache]: Analyzing trace with hash -432704512, now seen corresponding path program 1 times [2022-01-10 23:18:48,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:18:48,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332210547] [2022-01-10 23:18:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:18:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 23:18:48,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:18:48,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332210547] [2022-01-10 23:18:48,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332210547] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 23:18:48,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061447258] [2022-01-10 23:18:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:18:48,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 23:18:48,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:18:48,712 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 23:18:48,713 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 23:18:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:18:48,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 23:18:48,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 23:18:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 23:18:48,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 23:18:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 23:18:48,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061447258] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 23:18:48,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 23:18:48,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-01-10 23:18:48,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538894227] [2022-01-10 23:18:49,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 23:18:49,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:18:49,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:18:49,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:18:49,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:18:49,002 INFO L87 Difference]: Start difference. First operand 71 states and 97 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:18:49,041 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2022-01-10 23:18:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:18:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 23:18:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:18:49,042 INFO L225 Difference]: With dead ends: 75 [2022-01-10 23:18:49,042 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 23:18:49,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:18:49,053 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 61 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:18:49,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 127 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:18:49,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 23:18:49,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 23:18:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 23:18:49,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-10 23:18:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:18:49,054 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 23:18:49,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:18:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 23:18:49,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 23:18:49,057 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 23:18:49,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 23:18:49,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-10 23:18:49,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 23:18:49,295 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 23:18:49,295 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 23:18:49,296 INFO L854 garLoopResultBuilder]: At program point L25-2(lines 25 341) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~this_sink~0#1Int| 0)) [2022-01-10 23:18:49,297 INFO L854 garLoopResultBuilder]: At program point L337(lines 25 341) the Hoare annotation is: (let ((.cse0 (< 0 (+ |ULTIMATE.start_ULTIMATE.start_main_~P1~0#1Int| 1)))) (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 3) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~this_sink~0#1Int|) .cse0) (and (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 2) .cse0 (= |ULTIMATE.start_ULTIMATE.start_main_~this_sink~0#1Int| 0)) (= |ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0))) [2022-01-10 23:18:49,297 INFO L858 garLoopResultBuilder]: For program point L25-3(lines 25 341) no Hoare annotation was computed. [2022-01-10 23:18:49,298 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 54) no Hoare annotation was computed. [2022-01-10 23:18:49,298 INFO L861 garLoopResultBuilder]: At program point L15(lines 15 346) the Hoare annotation is: true [2022-01-10 23:18:49,298 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 51) no Hoare annotation was computed. [2022-01-10 23:18:49,298 INFO L858 garLoopResultBuilder]: For program point L55(lines 55 106) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 49) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 71) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 222) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 44) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 69) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 87) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 123) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 338) no Hoare annotation was computed. [2022-01-10 23:18:49,299 INFO L854 garLoopResultBuilder]: At program point L327(lines 15 346) the Hoare annotation is: false [2022-01-10 23:18:49,299 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 64) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 85) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 103) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 121) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 139) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 239) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 345) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 101) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 116) no Hoare annotation was computed. [2022-01-10 23:18:49,300 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 137) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 155) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 237) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 255) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 96) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 132) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 153) no Hoare annotation was computed. [2022-01-10 23:18:49,301 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 171) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 232) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 253) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 271) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 148) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 169) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 187) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 248) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 269) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 287) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 164) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 185) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 203) no Hoare annotation was computed. [2022-01-10 23:18:49,302 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 264) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 285) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 303) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 180) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 201) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 219) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 280) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 301) no Hoare annotation was computed. [2022-01-10 23:18:49,303 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 319) no Hoare annotation was computed. [2022-01-10 23:18:49,304 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 196) no Hoare annotation was computed. [2022-01-10 23:18:49,304 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 217) no Hoare annotation was computed. [2022-01-10 23:18:49,304 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 296) no Hoare annotation was computed. [2022-01-10 23:18:49,304 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 317) no Hoare annotation was computed. [2022-01-10 23:18:49,305 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 335) no Hoare annotation was computed. [2022-01-10 23:18:49,305 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2022-01-10 23:18:49,307 INFO L858 garLoopResultBuilder]: For program point L310(lines 310 312) no Hoare annotation was computed. [2022-01-10 23:18:49,307 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 333) no Hoare annotation was computed. [2022-01-10 23:18:49,311 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 328) no Hoare annotation was computed. [2022-01-10 23:18:49,313 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 23:18:49,314 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 23:18:49,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:18:49 BasicIcfg [2022-01-10 23:18:49,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 23:18:49,331 INFO L158 Benchmark]: Toolchain (without parser) took 2165.66ms. Allocated memory was 189.8MB in the beginning and 291.5MB in the end (delta: 101.7MB). Free memory was 139.2MB in the beginning and 247.3MB in the end (delta: -108.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 23:18:49,331 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory was 155.7MB in the beginning and 155.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 23:18:49,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.35ms. Allocated memory is still 189.8MB. Free memory was 139.1MB in the beginning and 164.8MB in the end (delta: -25.7MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-01-10 23:18:49,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.95ms. Allocated memory is still 189.8MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 23:18:49,332 INFO L158 Benchmark]: Boogie Preprocessor took 25.92ms. Allocated memory is still 189.8MB. Free memory was 163.2MB in the beginning and 161.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 23:18:49,332 INFO L158 Benchmark]: RCFGBuilder took 327.89ms. Allocated memory is still 189.8MB. Free memory was 161.6MB in the beginning and 146.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-10 23:18:49,332 INFO L158 Benchmark]: IcfgTransformer took 85.87ms. Allocated memory is still 189.8MB. Free memory was 146.8MB in the beginning and 140.7MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-10 23:18:49,332 INFO L158 Benchmark]: TraceAbstraction took 1483.61ms. Allocated memory was 189.8MB in the beginning and 291.5MB in the end (delta: 101.7MB). Free memory was 140.1MB in the beginning and 247.3MB in the end (delta: -107.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 23:18:49,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory was 155.7MB in the beginning and 155.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.35ms. Allocated memory is still 189.8MB. Free memory was 139.1MB in the beginning and 164.8MB in the end (delta: -25.7MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.95ms. Allocated memory is still 189.8MB. Free memory was 164.8MB in the beginning and 163.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.92ms. Allocated memory is still 189.8MB. Free memory was 163.2MB in the beginning and 161.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 327.89ms. Allocated memory is still 189.8MB. Free memory was 161.6MB in the beginning and 146.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * IcfgTransformer took 85.87ms. Allocated memory is still 189.8MB. Free memory was 146.8MB in the beginning and 140.7MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 1483.61ms. Allocated memory was 189.8MB in the beginning and 291.5MB in the end (delta: 101.7MB). Free memory was 140.1MB in the beginning and 247.3MB in the end (delta: -107.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 345]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 785 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 279 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 506 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 37 HoareAnnotationTreeSize, 4 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 1 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 26/35 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: q == 0bv32 && 0bv32 == this_sink - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (q == 0bv32 || ((~bvult64(0bv33, ~bvadd32(~zero_extendFrom32To33(P1), 1bv33)) && ~bvule32(1bv32, this_sink)) && q == 3bv32)) || ((~bvult64(0bv33, ~bvadd32(~zero_extendFrom32To33(P1), 1bv33)) && 0bv32 == this_sink) && q == 2bv32) RESULT: Ultimate proved your program to be correct! [2022-01-10 23:18:49,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...