/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:18:14,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:18:14,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:18:14,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:18:14,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:18:14,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:18:14,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:18:14,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:18:14,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:18:14,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:18:14,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:18:14,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:18:14,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:18:14,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:18:14,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:18:14,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:18:14,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:18:14,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:18:14,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:18:14,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:18:14,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:18:14,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:18:14,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:18:14,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:18:14,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:18:14,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:18:14,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:18:14,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:18:14,086 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 [2020-08-22 16:18:14,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:18:14,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:18:14,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:18:14,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:18:14,111 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:18:14,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:18:14,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:18:14,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:18:14,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:18:14,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:18:14,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:18:14,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:18:14,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:18:14,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:18:14,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:18:14,113 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:18:14,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:18:14,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:18:14,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:18:14,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:18:14,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:18:14,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:18:14,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:18:14,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:18:14,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:18:14,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:18:14,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:18:14,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:18:14,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:18:14,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:18:14,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:18:14,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:18:14,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:18:14,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:18:14,425 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:18:14,425 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-22 16:18:14,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1129ff824/f09b23ad91e2407aa0ac92df15bc5886/FLAG377619e08 [2020-08-22 16:18:14,961 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:18:14,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-22 16:18:14,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1129ff824/f09b23ad91e2407aa0ac92df15bc5886/FLAG377619e08 [2020-08-22 16:18:15,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1129ff824/f09b23ad91e2407aa0ac92df15bc5886 [2020-08-22 16:18:15,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:18:15,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:18:15,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:18:15,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:18:15,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:18:15,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff91334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15, skipping insertion in model container [2020-08-22 16:18:15,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:18:15,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:18:15,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:18:15,630 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:18:15,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:18:15,655 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:18:15,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15 WrapperNode [2020-08-22 16:18:15,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:18:15,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:18:15,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:18:15,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:18:15,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (1/1) ... [2020-08-22 16:18:15,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:18:15,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:18:15,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:18:15,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:18:15,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (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 [2020-08-22 16:18:15,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:18:15,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:18:15,834 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-08-22 16:18:15,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:18:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:18:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:18:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-08-22 16:18:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:18:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:18:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:18:16,025 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:18:16,026 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:18:16,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:18:16 BoogieIcfgContainer [2020-08-22 16:18:16,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:18:16,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:18:16,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:18:16,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:18:16,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:18:15" (1/3) ... [2020-08-22 16:18:16,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624917f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:18:16, skipping insertion in model container [2020-08-22 16:18:16,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:18:15" (2/3) ... [2020-08-22 16:18:16,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624917f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:18:16, skipping insertion in model container [2020-08-22 16:18:16,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:18:16" (3/3) ... [2020-08-22 16:18:16,038 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-08-22 16:18:16,048 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:18:16,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:18:16,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:18:16,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:18:16,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:18:16,124 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:18:16,124 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:18:16,124 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:18:16,125 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:18:16,125 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:18:16,125 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:18:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-22 16:18:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-22 16:18:16,172 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:18:16,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:18:16,174 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:18:16,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:18:16,182 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-08-22 16:18:16,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:18:16,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767274048] [2020-08-22 16:18:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:18:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:18:16,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:18:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:18:16,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:18:16,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:18:16,334 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:18:16,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:18:16,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:18:16 BoogieIcfgContainer [2020-08-22 16:18:16,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:18:16,365 INFO L168 Benchmark]: Toolchain (without parser) took 969.00 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 155.2 MB in the end (delta: -53.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,367 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.21 ms. Allocated memory is still 138.9 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,369 INFO L168 Benchmark]: Boogie Preprocessor took 115.93 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 181.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,370 INFO L168 Benchmark]: RCFGBuilder took 257.22 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,371 INFO L168 Benchmark]: TraceAbstraction took 331.19 ms. Allocated memory is still 202.4 MB. Free memory was 167.6 MB in the beginning and 155.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:18:16,376 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.21 ms. Allocated memory is still 138.9 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.93 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 181.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.22 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 168.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 331.19 ms. Allocated memory is still 202.4 MB. Free memory was 167.6 MB in the beginning and 155.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 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<