/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:15:37,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:15:37,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:15:37,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:15:37,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:15:37,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:15:37,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:15:37,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:15:37,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:15:37,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:15:37,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:15:37,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:15:37,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:15:37,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:15:37,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:15:37,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:15:37,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 00:15:37,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:15:37,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:15:37,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:15:37,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:15:37,972 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:15:37,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:15:37,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:15:37,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:15:37,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:15:37,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:15:37,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:15:37,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:15:37,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:15:37,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:15:37,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:15:37,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:15:37,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:15:37,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:15:37,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:15:37,977 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:15:37,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:15:37,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:15:37,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:15:37,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:15:37,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:15:37,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:15:37,979 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:15:38,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:15:38,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:15:38,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:15:38,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:15:38,378 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:15:38,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-22 00:15:38,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca86b57c6/90f5c91425ef430ba01e5031881a57f0/FLAGff9316a7f [2021-02-22 00:15:39,196 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:15:39,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-22 00:15:39,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca86b57c6/90f5c91425ef430ba01e5031881a57f0/FLAGff9316a7f [2021-02-22 00:15:39,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca86b57c6/90f5c91425ef430ba01e5031881a57f0 [2021-02-22 00:15:39,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:15:39,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:15:39,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:15:39,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:15:39,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:15:39,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216f6013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39, skipping insertion in model container [2021-02-22 00:15:39,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:15:39,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:15:39,749 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c[838,851] [2021-02-22 00:15:39,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:15:39,763 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:15:39,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c[838,851] [2021-02-22 00:15:39,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:15:39,797 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:15:39,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39 WrapperNode [2021-02-22 00:15:39,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:15:39,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:15:39,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:15:39,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:15:39,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (1/1) ... [2021-02-22 00:15:39,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:15:39,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:15:39,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:15:39,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:15:39,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (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 [2021-02-22 00:15:39,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:15:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:15:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:15:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2021-02-22 00:15:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:15:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:15:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:15:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:15:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:15:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:15:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2021-02-22 00:15:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:15:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:15:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:15:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:15:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:15:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:15:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:15:40,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:15:40,354 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:15:40,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:15:40 BoogieIcfgContainer [2021-02-22 00:15:40,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:15:40,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:15:40,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:15:40,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:15:40,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:15:39" (1/3) ... [2021-02-22 00:15:40,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8c0069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:15:40, skipping insertion in model container [2021-02-22 00:15:40,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:15:39" (2/3) ... [2021-02-22 00:15:40,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8c0069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:15:40, skipping insertion in model container [2021-02-22 00:15:40,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:15:40" (3/3) ... [2021-02-22 00:15:40,393 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2021-02-22 00:15:40,401 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:15:40,407 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:15:40,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:15:40,467 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:15:40,467 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:15:40,467 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:15:40,467 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:15:40,468 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:15:40,468 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:15:40,468 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:15:40,468 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:15:40,489 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-22 00:15:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-22 00:15:40,501 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:15:40,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:15:40,503 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:15:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:15:40,511 INFO L82 PathProgramCache]: Analyzing trace with hash -835109064, now seen corresponding path program 1 times [2021-02-22 00:15:40,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:15:40,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896353045] [2021-02-22 00:15:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:15:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:15:40,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:15:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:15:40,725 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:15:40,794 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:15:40,795 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:15:40,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:15:40,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:15:40 BoogieIcfgContainer [2021-02-22 00:15:40,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:15:40,879 INFO L168 Benchmark]: Toolchain (without parser) took 1326.18 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 117.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:15:40,882 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:15:40,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 00:15:40,887 INFO L168 Benchmark]: Boogie Preprocessor took 37.23 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:15:40,889 INFO L168 Benchmark]: RCFGBuilder took 543.20 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 133.7 MB in the end (delta: -18.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2021-02-22 00:15:40,892 INFO L168 Benchmark]: TraceAbstraction took 490.33 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 117.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:15:40,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 229.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.23 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 543.20 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 133.7 MB in the end (delta: -18.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 490.33 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 117.0 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 33. Possible FailurePath: [L27] int n = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, n=1] [L28] COND FALSE !(n < 1) VAL [n=1] [L31] CALL, EXPR hanoi(n) VAL [\old(n)=1] [L19] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L20] return 1; VAL [\old(n)=1, \result=1, n=1] [L31] RET, EXPR hanoi(n) VAL [hanoi(n)=1, n=1] [L31] unsigned result = hanoi(n); VAL [hanoi(n)=1, n=1, result=1] [L33] COND FALSE !(result+1>0 && result+1 == 1<