/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:26:06,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 15:26:06,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 15:26:06,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 15:26:06,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:26:06,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:26:06,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:26:06,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:26:06,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:26:06,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:26:06,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:26:06,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:26:06,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:26:06,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:26:06,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:26:06,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:26:06,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:26:06,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:26:06,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:26:06,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:26:06,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:26:06,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:26:06,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:26:06,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:26:06,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 15:26:06,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:26:06,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:26:06,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:26:06,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 15:26:06,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:26:06,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:26:06,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:26:06,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:26:06,845 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:26:06,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:26:06,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:26:06,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:26:06,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:26:06,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:26:06,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:26:06,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:26:06,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:26:06,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:26:06,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:26:06,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:26:06,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:26:06,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:26:06,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:26:06,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:26:06,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:26:06,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:26:06,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:26:06,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:26:06,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:26:06,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:26:06,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:26:06,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:26:06,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:26:06,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-18 15:26:07,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:26:07,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:26:07,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:26:07,189 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:26:07,189 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:26:07,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-18 15:26:07,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2ff9e8c/6a31837cc4a44a6b8fa39426a6eb0500/FLAG4e65fa7b7 [2020-08-18 15:26:07,659 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:26:07,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-18 15:26:07,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2ff9e8c/6a31837cc4a44a6b8fa39426a6eb0500/FLAG4e65fa7b7 [2020-08-18 15:26:08,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2ff9e8c/6a31837cc4a44a6b8fa39426a6eb0500 [2020-08-18 15:26:08,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:26:08,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:26:08,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:26:08,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:26:08,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:26:08,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08, skipping insertion in model container [2020-08-18 15:26:08,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:26:08,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:26:08,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:26:08,398 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:26:08,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:26:08,437 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:26:08,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08 WrapperNode [2020-08-18 15:26:08,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:26:08,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:26:08,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:26:08,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:26:08,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... [2020-08-18 15:26:08,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:26:08,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:26:08,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:26:08,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:26:08,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 15:26:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:26:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:26:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-08-18 15:26:08,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:26:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:26:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:26:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-08-18 15:26:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:26:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:26:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:26:08,916 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:26:08,916 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 15:26:08,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:26:08 BoogieIcfgContainer [2020-08-18 15:26:08,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:26:08,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:26:08,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:26:08,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:26:08,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:26:08" (1/3) ... [2020-08-18 15:26:08,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc59953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:26:08, skipping insertion in model container [2020-08-18 15:26:08,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:26:08" (2/3) ... [2020-08-18 15:26:08,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc59953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:26:08, skipping insertion in model container [2020-08-18 15:26:08,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:26:08" (3/3) ... [2020-08-18 15:26:08,942 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-08-18 15:26:08,958 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:26:08,967 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:26:08,983 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:26:09,012 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:26:09,012 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:26:09,012 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:26:09,012 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:26:09,013 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:26:09,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:26:09,013 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:26:09,013 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:26:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-18 15:26:09,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 15:26:09,039 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:26:09,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:26:09,041 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:26:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:26:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-08-18 15:26:09,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:26:09,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962554141] [2020-08-18 15:26:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:26:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 15:26:09,163 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 15:26:09,164 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 15:26:09,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:26:09,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:26:09 BoogieIcfgContainer [2020-08-18 15:26:09,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:26:09,188 INFO L168 Benchmark]: Toolchain (without parser) took 1095.42 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 104.8 MB in the beginning and 160.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2020-08-18 15:26:09,189 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 15:26:09,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.35 ms. Allocated memory is still 141.6 MB. Free memory was 104.6 MB in the beginning and 95.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-18 15:26:09,191 INFO L168 Benchmark]: Boogie Preprocessor took 131.24 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 95.3 MB in the beginning and 183.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:26:09,192 INFO L168 Benchmark]: RCFGBuilder took 348.64 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 171.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:26:09,193 INFO L168 Benchmark]: TraceAbstraction took 259.78 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 160.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-08-18 15:26:09,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.35 ms. Allocated memory is still 141.6 MB. Free memory was 104.6 MB in the beginning and 95.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.24 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 95.3 MB in the beginning and 183.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.64 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 171.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259.78 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 160.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 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) [L29] CALL, EXPR hanoi(n) [L17] COND TRUE n == 1 [L18] return 1; [L29] RET, EXPR hanoi(n) [L29] unsigned result = hanoi(n); [L31] COND FALSE !(result+1>0 && result+1 == 1<