/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 -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 17:38:37,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:38:37,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:38:37,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 17:38:37,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 17:38:37,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 17:38:37,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 17:38:37,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 17:38:37,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 17:38:37,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 17:38:37,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 17:38:37,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 17:38:37,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:38:37,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:38:37,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:38:37,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:38:37,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:38:37,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:38:37,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:38:37,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:38:37,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:38:37,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:38:37,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:38:37,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:38:37,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:38:37,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 17:38:37,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 17:38:37,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 17:38:37,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 17:38:37,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 17:38:37,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 17:38:37,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 17:38:37,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 17:38:37,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:38:37,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:38:37,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:38:37,720 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 17:38:37,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:38:37,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:38:37,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:38:37,751 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:38:37,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:38:37,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:38:37,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:38:37,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:38:37,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:38:37,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:38:37,753 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:38:37,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:38:37,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:38:37,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:38:37,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:38:37,755 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:38:37,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:38:37,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:38:37,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:38:37,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:38:37,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:38:37,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:38:37,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:38:38,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:38:38,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:38:38,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:38:38,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:38:38,208 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:38:38,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-23 17:38:38,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b735d40fa/58b7045583f74ab6aa1089d5f1762162/FLAG34329a082 [2021-02-23 17:38:38,978 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:38:38,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2021-02-23 17:38:38,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b735d40fa/58b7045583f74ab6aa1089d5f1762162/FLAG34329a082 [2021-02-23 17:38:39,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b735d40fa/58b7045583f74ab6aa1089d5f1762162 [2021-02-23 17:38:39,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:38:39,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:38:39,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:39,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:38:39,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:38:39,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421eed05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39, skipping insertion in model container [2021-02-23 17:38:39,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:38:39,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:38:39,631 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 17:38:39,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:39,646 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:38:39,664 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 17:38:39,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:39,681 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:38:39,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39 WrapperNode [2021-02-23 17:38:39,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:39,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:38:39,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:38:39,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:38:39,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (1/1) ... [2021-02-23 17:38:39,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:38:39,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:38:39,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:38:39,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:38:39,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (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 [2021-02-23 17:38:39,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:38:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:38:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:38:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2021-02-23 17:38:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:38:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:38:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:38:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:38:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:38:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 17:38:39,822 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2021-02-23 17:38:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:38:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:38:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:38:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:38:39,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:38:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:38:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:38:40,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:38:40,160 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 17:38:40,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:40 BoogieIcfgContainer [2021-02-23 17:38:40,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:38:40,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:38:40,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:38:40,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:38:40,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:38:39" (1/3) ... [2021-02-23 17:38:40,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4b5993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:40, skipping insertion in model container [2021-02-23 17:38:40,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:39" (2/3) ... [2021-02-23 17:38:40,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4b5993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:40, skipping insertion in model container [2021-02-23 17:38:40,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:40" (3/3) ... [2021-02-23 17:38:40,176 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2021-02-23 17:38:40,186 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:38:40,242 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:38:40,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:38:40,357 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:38:40,357 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:38:40,362 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:38:40,362 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:38:40,363 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:38:40,363 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:38:40,364 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:38:40,364 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:38:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-23 17:38:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-23 17:38:40,415 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:40,417 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 17:38:40,418 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:40,433 INFO L82 PathProgramCache]: Analyzing trace with hash -835109064, now seen corresponding path program 1 times [2021-02-23 17:38:40,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:40,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119931912] [2021-02-23 17:38:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:40,543 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:38:40,702 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:38:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:38:40,766 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:38:40,802 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 17:38:40,803 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 17:38:40,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:38:40,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:38:40 BoogieIcfgContainer [2021-02-23 17:38:40,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:38:40,825 INFO L168 Benchmark]: Toolchain (without parser) took 1457.31 ms. Allocated memory is still 172.0 MB. Free memory was 148.8 MB in the beginning and 141.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:40,826 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 172.0 MB. Free memory is still 147.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:38:40,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.10 ms. Allocated memory is still 172.0 MB. Free memory was 147.7 MB in the beginning and 138.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:40,829 INFO L168 Benchmark]: Boogie Preprocessor took 35.79 ms. Allocated memory is still 172.0 MB. Free memory was 138.3 MB in the beginning and 137.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:40,830 INFO L168 Benchmark]: RCFGBuilder took 442.72 ms. Allocated memory is still 172.0 MB. Free memory was 136.9 MB in the beginning and 122.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 17:38:40,831 INFO L168 Benchmark]: TraceAbstraction took 656.64 ms. Allocated memory is still 172.0 MB. Free memory was 122.0 MB in the beginning and 141.9 MB in the end (delta: -20.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:38:40,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 172.0 MB. Free memory is still 147.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 298.10 ms. Allocated memory is still 172.0 MB. Free memory was 147.7 MB in the beginning and 138.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.79 ms. Allocated memory is still 172.0 MB. Free memory was 138.3 MB in the beginning and 137.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 442.72 ms. Allocated memory is still 172.0 MB. Free memory was 136.9 MB in the beginning and 122.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 656.64 ms. Allocated memory is still 172.0 MB. Free memory was 122.0 MB in the beginning and 141.9 MB in the end (delta: -20.0 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(); [L28] COND FALSE !(n < 1) [L31] CALL, EXPR hanoi(n) [L19] COND TRUE n == 1 [L20] return 1; [L31] RET, EXPR hanoi(n) [L31] unsigned result = hanoi(n); [L33] COND FALSE !(result+1>0 && result+1 == 1<