/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 NUM_FUNCTIONS --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 [2020-07-19 23:02:09,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:02:09,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:02:09,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-19 23:02:09,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:02:09,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:02:09,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:02:09,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:02:09,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:02:09,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:02:09,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:02:09,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:02:09,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:02:09,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:02:09,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:02:09,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:02:09,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:02:09,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:02:09,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:02:09,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:02:09,797 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 [2020-07-19 23:02:09,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:02:09,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:02:09,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:02:09,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:02:09,813 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:02:09,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:02:09,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:02:09,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:02:09,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:02:09,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:02:09,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:02:09,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:02:09,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:02:09,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:02:09,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:02:09,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:02:09,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:02:09,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:02:09,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:02:09,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:02:09,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:02:09,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:02:09,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:02:09,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:02:09,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:02:09,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:02:09,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:02:09,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:02:09,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:02:09,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 [2020-07-19 23:02:10,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:02:10,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:02:10,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:02:10,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:02:10,125 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:02:10,126 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-19 23:02:10,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dc5e832/ee15c83b4b974271ab8aa20d64778330/FLAG13a8b243a [2020-07-19 23:02:10,698 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:02:10,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-19 23:02:10,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dc5e832/ee15c83b4b974271ab8aa20d64778330/FLAG13a8b243a [2020-07-19 23:02:11,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98dc5e832/ee15c83b4b974271ab8aa20d64778330 [2020-07-19 23:02:11,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:02:11,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:02:11,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:02:11,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:02:11,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:02:11,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ebf14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11, skipping insertion in model container [2020-07-19 23:02:11,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:02:11,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:02:11,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:02:11,325 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:02:11,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:02:11,359 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:02:11,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11 WrapperNode [2020-07-19 23:02:11,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:02:11,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:02:11,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:02:11,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:02:11,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (1/1) ... [2020-07-19 23:02:11,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:02:11,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:02:11,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:02:11,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:02:11,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (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 [2020-07-19 23:02:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:02:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:02:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-07-19 23:02:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:02:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:02:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:02:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-07-19 23:02:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:02:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:02:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:02:11,786 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:02:11,786 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-19 23:02:11,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:02:11 BoogieIcfgContainer [2020-07-19 23:02:11,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:02:11,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:02:11,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:02:11,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:02:11,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:02:11" (1/3) ... [2020-07-19 23:02:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf7e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:02:11, skipping insertion in model container [2020-07-19 23:02:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:02:11" (2/3) ... [2020-07-19 23:02:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf7e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:02:11, skipping insertion in model container [2020-07-19 23:02:11,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:02:11" (3/3) ... [2020-07-19 23:02:11,799 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-07-19 23:02:11,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:02:11,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:02:11,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:02:11,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:02:11,860 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:02:11,861 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:02:11,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:02:11,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:02:11,861 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:02:11,861 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:02:11,861 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:02:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-19 23:02:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-19 23:02:11,895 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:02:11,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:02:11,897 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:02:11,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:02:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-07-19 23:02:11,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:02:11,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383982521] [2020-07-19 23:02:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ac2ed9b [2020-07-19 23:02:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:02:12,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:02:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:02:12,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:02:12,121 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:02:12,121 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:02:12,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:02:12,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:02:12 BoogieIcfgContainer [2020-07-19 23:02:12,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:02:12,152 INFO L168 Benchmark]: Toolchain (without parser) took 1070.01 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 102.5 MB in the beginning and 159.0 MB in the end (delta: -56.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:12,153 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 23:02:12,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.03 ms. Allocated memory is still 146.3 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:12,155 INFO L168 Benchmark]: Boogie Preprocessor took 152.03 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 92.8 MB in the beginning and 184.8 MB in the end (delta: -92.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:12,156 INFO L168 Benchmark]: RCFGBuilder took 276.90 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 172.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:12,157 INFO L168 Benchmark]: TraceAbstraction took 356.92 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 159.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:12,161 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.03 ms. Allocated memory is still 146.3 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.03 ms. Allocated memory was 146.3 MB in the beginning and 205.5 MB in the end (delta: 59.2 MB). Free memory was 92.8 MB in the beginning and 184.8 MB in the end (delta: -92.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.90 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 172.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 356.92 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 159.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 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<