/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -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-d623d84 [2020-07-21 19:15:38,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 19:15:38,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 19:15:38,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 19:15:38,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 19:15:38,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 19:15:38,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 19:15:38,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 19:15:38,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 19:15:38,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 19:15:38,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 19:15:38,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 19:15:38,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 19:15:38,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 19:15:38,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 19:15:38,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 19:15:38,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 19:15:38,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 19:15:38,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 19:15:38,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 19:15:38,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 19:15:38,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 19:15:38,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 19:15:38,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 19:15:38,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 19:15:38,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 19:15:38,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 19:15:38,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 19:15:38,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 19:15:38,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 19:15:38,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 19:15:38,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 19:15:38,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 19:15:38,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 19:15:38,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 19:15:38,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 19:15:38,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 19:15:38,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 19:15:38,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 19:15:38,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 19:15:38,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 19:15:38,181 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 19:15:38,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 19:15:38,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 19:15:38,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 19:15:38,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 19:15:38,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 19:15:38,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 19:15:38,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 19:15:38,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 19:15:38,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 19:15:38,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 19:15:38,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 19:15:38,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 19:15:38,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 19:15:38,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 19:15:38,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 19:15:38,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 19:15:38,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 19:15:38,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 19:15:38,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 19:15:38,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 19:15:38,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 19:15:38,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 19:15:38,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 19:15:38,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 19:15:38,186 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 19:15:38,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 19:15:38,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 19:15:38,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 19:15:38,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 19:15:38,533 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 19:15:38,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-21 19:15:38,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e69c87f2/6d4e015fced34ca796e79b9a6e209ca9/FLAG9fb54cbcd [2020-07-21 19:15:39,050 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 19:15:39,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-07-21 19:15:39,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e69c87f2/6d4e015fced34ca796e79b9a6e209ca9/FLAG9fb54cbcd [2020-07-21 19:15:39,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e69c87f2/6d4e015fced34ca796e79b9a6e209ca9 [2020-07-21 19:15:39,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 19:15:39,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 19:15:39,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 19:15:39,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 19:15:39,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 19:15:39,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125eb49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39, skipping insertion in model container [2020-07-21 19:15:39,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 19:15:39,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 19:15:39,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 19:15:39,679 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 19:15:39,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 19:15:39,704 INFO L208 MainTranslator]: Completed translation [2020-07-21 19:15:39,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39 WrapperNode [2020-07-21 19:15:39,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 19:15:39,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 19:15:39,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 19:15:39,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 19:15:39,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (1/1) ... [2020-07-21 19:15:39,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 19:15:39,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 19:15:39,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 19:15:39,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 19:15:39,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (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 [2020-07-21 19:15:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 19:15:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 19:15:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-07-21 19:15:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 19:15:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 19:15:40,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 19:15:40,086 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 19:15:40,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:15:40 BoogieIcfgContainer [2020-07-21 19:15:40,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 19:15:40,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 19:15:40,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 19:15:40,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 19:15:40,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:15:39" (1/3) ... [2020-07-21 19:15:40,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e12fec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:15:40, skipping insertion in model container [2020-07-21 19:15:40,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:15:39" (2/3) ... [2020-07-21 19:15:40,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e12fec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:15:40, skipping insertion in model container [2020-07-21 19:15:40,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:15:40" (3/3) ... [2020-07-21 19:15:40,099 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-07-21 19:15:40,110 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 19:15:40,118 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 19:15:40,133 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 19:15:40,159 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 19:15:40,159 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 19:15:40,159 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 19:15:40,159 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 19:15:40,160 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 19:15:40,160 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 19:15:40,160 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 19:15:40,160 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 19:15:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-21 19:15:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 19:15:40,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 19:15:40,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 19:15:40,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 19:15:40,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 19:15:40,209 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-07-21 19:15:40,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 19:15:40,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313568895] [2020-07-21 19:15:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 19:15:40,298 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 19:15:40,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 19:15:40,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 19:15:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 19:15:40,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 19:15:40,328 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 19:15:40,329 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 19:15:40,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 19:15:40,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:15:40 BoogieIcfgContainer [2020-07-21 19:15:40,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 19:15:40,573 INFO L168 Benchmark]: Toolchain (without parser) took 1102.41 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 152.9 MB in the end (delta: -51.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,574 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.59 ms. Allocated memory is still 144.2 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,576 INFO L168 Benchmark]: Boogie Preprocessor took 109.06 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 92.0 MB in the beginning and 181.0 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,577 INFO L168 Benchmark]: RCFGBuilder took 275.28 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 168.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,578 INFO L168 Benchmark]: TraceAbstraction took 478.44 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 152.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-21 19:15:40,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.59 ms. Allocated memory is still 144.2 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.06 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 92.0 MB in the beginning and 181.0 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 275.28 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 168.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 478.44 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 152.9 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 34]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L25] int n = __VERIFIER_nondet_int(); [L26] COND FALSE !(n < 1) VAL [n=1] [L29] CALL, EXPR hanoi(n) VAL [\old(n)=1] [L17] COND TRUE n == 1 [L18] return 1; VAL [\old(n)=1, \result=1, n=1] [L29] RET, EXPR hanoi(n) VAL [hanoi(n)=1, n=1] [L29] unsigned result = hanoi(n); [L31] COND FALSE !(result+1>0 && result+1 == 1<