/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:15:45,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:15:45,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:15:45,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:15:45,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:15:45,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:15:45,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:15:45,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:15:45,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:15:45,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:15:45,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:15:45,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:15:45,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:15:45,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:15:45,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:15:45,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:15:45,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:15:45,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:15:45,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:15:45,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:15:45,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:15:45,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:15:45,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:15:45,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:15:45,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 20:15:45,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:15:45,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:15:45,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:15:45,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 20:15:45,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:15:45,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:15:45,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:15:45,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:15:45,281 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:15:45,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:15:45,281 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:15:45,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:15:45,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:15:45,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:15:45,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:15:45,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:15:45,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:15:45,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:15:45,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:15:45,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:15:45,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:15:45,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:15:45,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:15:45,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:15:45,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:15:45,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:15:45,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:15:45,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:15:45,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:15:45,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:15:45,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:15:45,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:15:45,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:15:45,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:15:45,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:15:45,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:15:45,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:15:45,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:15:45,603 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:15:45,603 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-18 20:15:45,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692d1e4d3/c142bfcc77f543688499b7de7c86696f/FLAG2a77bdf7f [2020-08-18 20:15:46,162 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:15:46,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-08-18 20:15:46,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692d1e4d3/c142bfcc77f543688499b7de7c86696f/FLAG2a77bdf7f [2020-08-18 20:15:46,536 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/692d1e4d3/c142bfcc77f543688499b7de7c86696f [2020-08-18 20:15:46,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:15:46,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:15:46,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:15:46,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:15:46,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:15:46,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46, skipping insertion in model container [2020-08-18 20:15:46,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:15:46,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:15:46,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:15:46,748 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:15:46,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:15:46,778 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:15:46,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46 WrapperNode [2020-08-18 20:15:46,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:15:46,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:15:46,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:15:46,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:15:46,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... [2020-08-18 20:15:46,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:15:46,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:15:46,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:15:46,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:15:46,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-08-18 20:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:15:47,128 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:15:47,128 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 20:15:47,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:15:47 BoogieIcfgContainer [2020-08-18 20:15:47,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:15:47,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:15:47,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:15:47,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:15:47,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:15:46" (1/3) ... [2020-08-18 20:15:47,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578adc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:15:47, skipping insertion in model container [2020-08-18 20:15:47,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:46" (2/3) ... [2020-08-18 20:15:47,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578adc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:15:47, skipping insertion in model container [2020-08-18 20:15:47,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:15:47" (3/3) ... [2020-08-18 20:15:47,152 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-08-18 20:15:47,183 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:15:47,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:15:47,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:15:47,266 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:15:47,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:15:47,266 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:15:47,267 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:15:47,267 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:15:47,267 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:15:47,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:15:47,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:15:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-18 20:15:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 20:15:47,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:15:47,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:15:47,289 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:15:47,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:15:47,294 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-08-18 20:15:47,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:15:47,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64949911] [2020-08-18 20:15:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:15:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 20:15:47,407 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 20:15:47,407 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 20:15:47,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:15:47,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:15:47 BoogieIcfgContainer [2020-08-18 20:15:47,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:15:47,430 INFO L168 Benchmark]: Toolchain (without parser) took 882.58 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.9 MB in the beginning and 158.8 MB in the end (delta: -54.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,431 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.94 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,434 INFO L168 Benchmark]: Boogie Preprocessor took 109.76 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 94.4 MB in the beginning and 183.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,435 INFO L168 Benchmark]: RCFGBuilder took 242.54 ms. Allocated memory is still 205.0 MB. Free memory was 183.5 MB in the beginning and 171.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,437 INFO L168 Benchmark]: TraceAbstraction took 283.34 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 158.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:47,442 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 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 231.94 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.76 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 94.4 MB in the beginning and 183.5 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.54 ms. Allocated memory is still 205.0 MB. Free memory was 183.5 MB in the beginning and 171.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 283.34 ms. Allocated memory is still 205.0 MB. Free memory was 170.5 MB in the beginning and 158.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 34]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L25] int n = __VERIFIER_nondet_int(); [L26] COND FALSE !(n < 1) [L29] CALL, EXPR hanoi(n) [L17] COND TRUE n == 1 [L18] return 1; [L29] RET, EXPR hanoi(n) [L29] unsigned result = hanoi(n); [L31] COND FALSE !(result+1>0 && result+1 == 1<