/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 22:18:38,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 22:18:38,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 22:18:38,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-09 22:18:38,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-09 22:18:38,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-09 22:18:38,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-09 22:18:38,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-09 22:18:38,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-09 22:18:38,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-09 22:18:38,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-09 22:18:38,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-09 22:18:38,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-09 22:18:38,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-09 22:18:38,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-09 22:18:38,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-09 22:18:38,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-09 22:18:38,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-09 22:18:38,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-09 22:18:38,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-09 22:18:38,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-09 22:18:38,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-09 22:18:38,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-09 22:18:38,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-09 22:18:38,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-09 22:18:38,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 22:18:38,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 22:18:38,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 22:18:38,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 22:18:38,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 22:18:38,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 22:18:38,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 22:18:38,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 22:18:38,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 22:18:38,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 22:18:38,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 22:18:38,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 22:18:38,161 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 22:18:38,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 22:18:38,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 22:18:38,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 22:18:38,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 22:18:38,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 22:18:38,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:18:38,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 22:18:38,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 22:18:38,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 22:18:38,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 22:18:38,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 22:18:38,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 22:18:38,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 22:18:38,351 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 22:18:38,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2022-01-09 22:18:38,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317f3be4c/833ccca983114d96bffc1463be9f96d2/FLAG1e9515f61 [2022-01-09 22:18:38,761 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 22:18:38,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2022-01-09 22:18:38,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317f3be4c/833ccca983114d96bffc1463be9f96d2/FLAG1e9515f61 [2022-01-09 22:18:39,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317f3be4c/833ccca983114d96bffc1463be9f96d2 [2022-01-09 22:18:39,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 22:18:39,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 22:18:39,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 22:18:39,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 22:18:39,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 22:18:39,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73387b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39, skipping insertion in model container [2022-01-09 22:18:39,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 22:18:39,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 22:18:39,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c[838,851] [2022-01-09 22:18:39,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:18:39,350 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 22:18:39,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c[838,851] [2022-01-09 22:18:39,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:18:39,367 INFO L208 MainTranslator]: Completed translation [2022-01-09 22:18:39,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39 WrapperNode [2022-01-09 22:18:39,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 22:18:39,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 22:18:39,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 22:18:39,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 22:18:39,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,387 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-01-09 22:18:39,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 22:18:39,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 22:18:39,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 22:18:39,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 22:18:39,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 22:18:39,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 22:18:39,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 22:18:39,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 22:18:39,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (1/1) ... [2022-01-09 22:18:39,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:18:39,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:18:39,420 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) [2022-01-09 22:18:39,439 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 [2022-01-09 22:18:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 22:18:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2022-01-09 22:18:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2022-01-09 22:18:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 22:18:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 22:18:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 22:18:39,513 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 22:18:39,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 22:18:39,622 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 22:18:39,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 22:18:39,625 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-09 22:18:39,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:18:39 BoogieIcfgContainer [2022-01-09 22:18:39,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 22:18:39,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 22:18:39,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 22:18:39,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 22:18:39,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:18:39" (1/3) ... [2022-01-09 22:18:39,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5679ede7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:18:39, skipping insertion in model container [2022-01-09 22:18:39,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:18:39" (2/3) ... [2022-01-09 22:18:39,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5679ede7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:18:39, skipping insertion in model container [2022-01-09 22:18:39,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:18:39" (3/3) ... [2022-01-09 22:18:39,636 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2022-01-09 22:18:39,640 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 22:18:39,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 22:18:39,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 22:18:39,683 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 [2022-01-09 22:18:39,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 22:18:39,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-09 22:18:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-09 22:18:39,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:18:39,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 22:18:39,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:18:39,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:18:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2087939196, now seen corresponding path program 1 times [2022-01-09 22:18:39,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:18:39,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691165372] [2022-01-09 22:18:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:18:39,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:18:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-09 22:18:39,790 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-09 22:18:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-09 22:18:39,829 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-09 22:18:39,830 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-09 22:18:39,831 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-09 22:18:39,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 22:18:39,835 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-09 22:18:39,836 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-09 22:18:39,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:18:39 BoogieIcfgContainer [2022-01-09 22:18:39,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-09 22:18:39,854 INFO L158 Benchmark]: Toolchain (without parser) took 661.86ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 140.4MB in the beginning and 227.1MB in the end (delta: -86.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 22:18:39,855 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 22:18:39,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.11ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 140.2MB in the beginning and 253.9MB in the end (delta: -113.7MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-01-09 22:18:39,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.05ms. Allocated memory is still 280.0MB. Free memory was 253.9MB in the beginning and 252.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-09 22:18:39,857 INFO L158 Benchmark]: Boogie Preprocessor took 10.87ms. Allocated memory is still 280.0MB. Free memory was 252.3MB in the beginning and 251.8MB in the end (delta: 522.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 22:18:39,860 INFO L158 Benchmark]: RCFGBuilder took 227.59ms. Allocated memory is still 280.0MB. Free memory was 251.8MB in the beginning and 241.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-09 22:18:39,860 INFO L158 Benchmark]: TraceAbstraction took 225.45ms. Allocated memory is still 280.0MB. Free memory was 240.8MB in the beginning and 227.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-09 22:18:39,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 174.11ms. Allocated memory was 195.0MB in the beginning and 280.0MB in the end (delta: 84.9MB). Free memory was 140.2MB in the beginning and 253.9MB in the end (delta: -113.7MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.05ms. Allocated memory is still 280.0MB. Free memory was 253.9MB in the beginning and 252.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.87ms. Allocated memory is still 280.0MB. Free memory was 252.3MB in the beginning and 251.8MB in the end (delta: 522.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 227.59ms. Allocated memory is still 280.0MB. Free memory was 251.8MB in the beginning and 241.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 225.45ms. Allocated memory is still 280.0MB. Free memory was 240.8MB in the beginning and 227.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. 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 - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 33. Possible FailurePath: [L27] int n = __VERIFIER_nondet_int(); [L28] COND FALSE !(n < 1) VAL [n=1] [L31] CALL, EXPR hanoi(n) VAL [\old(n)=1] [L19] COND TRUE n == 1 [L20] return 1; VAL [\old(n)=1, \result=1, n=1] [L31] RET, EXPR hanoi(n) VAL [hanoi(n)=1, n=1] [L31] unsigned result = hanoi(n); [L33] COND FALSE !(result+1>0 && result+1 == 1<