/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 05:29:02,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 05:29:02,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 05:29:02,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 05:29:02,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:29:02,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:29:02,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:29:02,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:29:02,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:29:02,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:29:02,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:29:02,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:29:02,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:29:02,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:29:02,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:29:02,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:29:02,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 05:29:02,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:29:02,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:29:02,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:29:02,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 05:29:02,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:29:02,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:29:02,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:29:02,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:29:02,406 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:29:02,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:29:02,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:29:02,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:29:02,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:29:02,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:29:02,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:29:02,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:29:02,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:29:02,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:29:02,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:29:02,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:29:02,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:29:02,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:29:02,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:29:02,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:29:02,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:29:02,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:29:02,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:29:02,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:29:02,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:29:02,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:29:02,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:29:02,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:29:02,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:29:02,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 05:29:02,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:29:02,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:29:02,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:29:02,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:29:02,723 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:29:02,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-20 05:29:02,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1321bfea/a6b141bed3994764b75b95ec833aa91d/FLAGf7897a39b [2020-07-20 05:29:03,291 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:29:03,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-20 05:29:03,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1321bfea/a6b141bed3994764b75b95ec833aa91d/FLAGf7897a39b [2020-07-20 05:29:03,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1321bfea/a6b141bed3994764b75b95ec833aa91d [2020-07-20 05:29:03,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:29:03,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:29:03,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:29:03,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:29:03,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:29:03,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381aa529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03, skipping insertion in model container [2020-07-20 05:29:03,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:29:03,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:29:03,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:29:03,847 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:29:03,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:29:03,878 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:29:03,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03 WrapperNode [2020-07-20 05:29:03,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:29:03,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:29:03,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:29:03,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:29:03,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... [2020-07-20 05:29:03,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:29:03,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:29:03,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:29:03,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:29:03,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:29:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:29:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:29:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-07-20 05:29:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:29:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:29:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 05:29:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-07-20 05:29:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:29:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:29:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:29:04,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:29:04,222 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 05:29:04,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:04 BoogieIcfgContainer [2020-07-20 05:29:04,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:29:04,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:29:04,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:29:04,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:29:04,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:29:03" (1/3) ... [2020-07-20 05:29:04,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d2547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:04, skipping insertion in model container [2020-07-20 05:29:04,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:03" (2/3) ... [2020-07-20 05:29:04,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d2547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:04, skipping insertion in model container [2020-07-20 05:29:04,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:04" (3/3) ... [2020-07-20 05:29:04,235 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-07-20 05:29:04,245 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:29:04,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:29:04,263 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:29:04,286 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:29:04,287 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:29:04,287 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:29:04,287 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:29:04,287 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:29:04,287 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:29:04,287 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:29:04,288 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:29:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-20 05:29:04,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 05:29:04,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:29:04,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:29:04,314 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:29:04,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:29:04,318 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-07-20 05:29:04,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:29:04,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811083188] [2020-07-20 05:29:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6aa08733 [2020-07-20 05:29:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:29:04,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:29:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:29:04,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:29:04,467 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 05:29:04,468 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 05:29:04,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:29:04,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:29:04 BoogieIcfgContainer [2020-07-20 05:29:04,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:29:04,493 INFO L168 Benchmark]: Toolchain (without parser) took 839.97 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 153.7 MB in the end (delta: -54.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,494 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.25 ms. Allocated memory is still 135.3 MB. Free memory was 98.8 MB in the beginning and 89.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,496 INFO L168 Benchmark]: Boogie Preprocessor took 30.41 ms. Allocated memory is still 135.3 MB. Free memory was 89.0 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,497 INFO L168 Benchmark]: RCFGBuilder took 316.34 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 87.4 MB in the beginning and 167.3 MB in the end (delta: -79.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,498 INFO L168 Benchmark]: TraceAbstraction took 262.59 ms. Allocated memory is still 199.8 MB. Free memory was 166.6 MB in the beginning and 153.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-07-20 05:29:04,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.25 ms. Allocated memory is still 135.3 MB. Free memory was 98.8 MB in the beginning and 89.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.41 ms. Allocated memory is still 135.3 MB. Free memory was 89.0 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 316.34 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 87.4 MB in the beginning and 167.3 MB in the end (delta: -79.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262.59 ms. Allocated memory is still 199.8 MB. Free memory was 166.6 MB in the beginning and 153.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 34]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L25] int n = __VERIFIER_nondet_int(); [L26] COND FALSE !(n < 1) VAL [n=1] [L29] CALL, EXPR hanoi(n) VAL [\old(n)=1] [L17] COND TRUE n == 1 [L18] return 1; VAL [\old(n)=1, \result=1, n=1] [L29] RET, EXPR hanoi(n) VAL [hanoi(n)=1, n=1] [L29] unsigned result = hanoi(n); [L31] COND FALSE !(result+1>0 && result+1 == 1<