/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-36cd7be [2021-02-23 22:37:06,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:37:06,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:37:07,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:37:07,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:37:07,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:37:07,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:37:07,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:37:07,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:37:07,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:37:07,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:37:07,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:37:07,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:37:07,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:37:07,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:37:07,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:37:07,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:37:07,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:37:07,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:37:07,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:37:07,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:37:07,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:37:07,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:37:07,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:37:07,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:37:07,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:37:07,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:37:07,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:37:07,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:37:07,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:37:07,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:37:07,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:37:07,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:37:07,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:37:07,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:37:07,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:37:07,161 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:37:07,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:37:07,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:37:07,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:37:07,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:37:07,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:37:07,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:37:07,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:37:07,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:37:07,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:37:07,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:37:07,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:37:07,623 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:37:07,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-23 22:37:07,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d67e1b7/c09c97c70b80488da1bcce1a87efeba2/FLAG28efda7a7 [2021-02-23 22:37:08,309 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:37:08,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-23 22:37:08,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d67e1b7/c09c97c70b80488da1bcce1a87efeba2/FLAG28efda7a7 [2021-02-23 22:37:08,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d67e1b7/c09c97c70b80488da1bcce1a87efeba2 [2021-02-23 22:37:08,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:37:08,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:37:08,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:37:08,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:37:08,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:37:08,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16030413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08, skipping insertion in model container [2021-02-23 22:37:08,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:37:08,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:37:08,922 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] [2021-02-23 22:37:08,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:37:08,936 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:37:08,950 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] [2021-02-23 22:37:08,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:37:08,966 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:37:08,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08 WrapperNode [2021-02-23 22:37:08,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:37:08,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:37:08,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:37:08,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:37:08,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:08,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:09,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:09,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (1/1) ... [2021-02-23 22:37:09,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:37:09,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:37:09,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:37:09,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:37:09,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (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 [2021-02-23 22:37:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:37:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:37:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:37:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2021-02-23 22:37:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:37:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:37:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:37:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:37:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:37:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:37:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2021-02-23 22:37:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:37:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:37:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:37:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:37:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:37:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:37:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:37:09,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:37:09,476 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 22:37:09,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:37:09 BoogieIcfgContainer [2021-02-23 22:37:09,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:37:09,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:37:09,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:37:09,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:37:09,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:37:08" (1/3) ... [2021-02-23 22:37:09,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e995afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:37:09, skipping insertion in model container [2021-02-23 22:37:09,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:08" (2/3) ... [2021-02-23 22:37:09,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e995afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:37:09, skipping insertion in model container [2021-02-23 22:37:09,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:37:09" (3/3) ... [2021-02-23 22:37:09,503 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2021-02-23 22:37:09,511 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:37:09,515 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:37:09,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:37:09,563 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:37:09,564 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:37:09,564 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:37:09,564 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:37:09,564 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:37:09,564 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:37:09,564 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:37:09,564 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:37:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-23 22:37:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-23 22:37:09,590 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:37:09,591 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] [2021-02-23 22:37:09,591 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:37:09,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:37:09,601 INFO L82 PathProgramCache]: Analyzing trace with hash -835109064, now seen corresponding path program 1 times [2021-02-23 22:37:09,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:37:09,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166032847] [2021-02-23 22:37:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:37:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:37:09,776 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:37:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:37:09,845 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:37:09,899 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:37:09,900 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:37:09,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:37:09,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:37:09 BoogieIcfgContainer [2021-02-23 22:37:09,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:37:09,958 INFO L168 Benchmark]: Toolchain (without parser) took 1240.07 ms. Allocated memory is still 152.0 MB. Free memory was 129.1 MB in the beginning and 121.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:09,959 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:37:09,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.46 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 118.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:09,961 INFO L168 Benchmark]: Boogie Preprocessor took 34.89 ms. Allocated memory is still 152.0 MB. Free memory was 118.6 MB in the beginning and 117.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:09,962 INFO L168 Benchmark]: RCFGBuilder took 474.58 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 103.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:09,963 INFO L168 Benchmark]: TraceAbstraction took 474.97 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 121.7 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:37:09,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 231.46 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 118.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.89 ms. Allocated memory is still 152.0 MB. Free memory was 118.6 MB in the beginning and 117.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 474.58 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 103.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 474.97 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 121.7 MB in the end (delta: -19.1 MB). There was no memory consumed. 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<