/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_b3_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:49:22,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:49:22,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:49:22,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:49:22,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:49:22,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:49:22,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:49:22,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:49:22,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:49:22,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:49:22,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:49:22,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:49:22,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:49:22,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:49:22,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:49:22,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:49:22,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:49:22,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:49:22,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:49:22,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:49:22,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:49:22,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:49:22,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:49:22,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:49:22,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:49:22,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:49:22,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:49:22,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:49:22,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:49:22,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:49:22,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:49:22,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:49:22,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:49:22,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:49:22,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:49:22,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:49:22,309 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:49:22,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:49:22,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:49:22,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:49:22,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:49:22,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:49:22,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:49:22,311 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:49:22,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:49:22,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:49:22,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:49:22,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:49:22,642 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:49:22,643 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b3_o5-2.c [2020-08-22 18:49:22,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ddb9d83/c8f6c9b5c4a34de5a284306267fa5d13/FLAG8634bd5c2 [2020-08-22 18:49:23,178 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:49:23,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_b3_o5-2.c [2020-08-22 18:49:23,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ddb9d83/c8f6c9b5c4a34de5a284306267fa5d13/FLAG8634bd5c2 [2020-08-22 18:49:23,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ddb9d83/c8f6c9b5c4a34de5a284306267fa5d13 [2020-08-22 18:49:23,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:49:23,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:49:23,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:49:23,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:49:23,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:49:23,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fa45c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23, skipping insertion in model container [2020-08-22 18:49:23,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:49:23,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:49:23,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:49:23,746 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:49:23,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:49:23,778 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:49:23,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23 WrapperNode [2020-08-22 18:49:23,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:49:23,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:49:23,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:49:23,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:49:23,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (1/1) ... [2020-08-22 18:49:23,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:49:23,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:49:23,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:49:23,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:49:23,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (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 [2020-08-22 18:49:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:49:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:49:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-08-22 18:49:23,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:49:23,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:49:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:49:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-08-22 18:49:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:49:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:49:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:49:24,150 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:49:24,151 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 18:49:24,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:49:24 BoogieIcfgContainer [2020-08-22 18:49:24,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:49:24,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:49:24,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:49:24,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:49:24,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:49:23" (1/3) ... [2020-08-22 18:49:24,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6067ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:49:24, skipping insertion in model container [2020-08-22 18:49:24,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:49:23" (2/3) ... [2020-08-22 18:49:24,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6067ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:49:24, skipping insertion in model container [2020-08-22 18:49:24,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:49:24" (3/3) ... [2020-08-22 18:49:24,164 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o5-2.c [2020-08-22 18:49:24,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:49:24,181 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:49:24,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:49:24,218 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:49:24,219 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:49:24,219 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:49:24,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:49:24,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:49:24,219 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:49:24,219 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:49:24,220 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:49:24,234 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-08-22 18:49:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-22 18:49:24,245 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:49:24,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:49:24,247 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:49:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:49:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash 856871792, now seen corresponding path program 1 times [2020-08-22 18:49:24,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:49:24,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224914147] [2020-08-22 18:49:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:49:24,319 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:49:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:24,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:49:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 18:49:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:49:24,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224914147] [2020-08-22 18:49:24,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:49:24,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:49:24,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074194927] [2020-08-22 18:49:24,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:49:24,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:49:24,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:49:24,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:49:24,510 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2020-08-22 18:49:24,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:49:24,594 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-08-22 18:49:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:49:24,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-08-22 18:49:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:49:24,609 INFO L225 Difference]: With dead ends: 44 [2020-08-22 18:49:24,609 INFO L226 Difference]: Without dead ends: 28 [2020-08-22 18:49:24,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:49:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-08-22 18:49:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-08-22 18:49:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-08-22 18:49:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-08-22 18:49:24,666 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 18 [2020-08-22 18:49:24,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:49:24,666 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-08-22 18:49:24,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:49:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-08-22 18:49:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 18:49:24,669 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:49:24,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:49:24,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:49:24,670 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:49:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:49:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1774609951, now seen corresponding path program 1 times [2020-08-22 18:49:24,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:49:24,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112966272] [2020-08-22 18:49:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:49:24,942 INFO L278 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-08-22 18:49:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:49:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 18:49:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 18:49:25,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112966272] [2020-08-22 18:49:25,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:49:25,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:49:25,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753264854] [2020-08-22 18:49:25,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:49:25,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:49:25,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:49:25,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:49:25,171 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 9 states. [2020-08-22 18:49:25,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:49:25,273 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-08-22 18:49:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 18:49:25,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-08-22 18:49:25,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:49:25,276 INFO L225 Difference]: With dead ends: 55 [2020-08-22 18:49:25,276 INFO L226 Difference]: Without dead ends: 37 [2020-08-22 18:49:25,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:49:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-22 18:49:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-08-22 18:49:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-22 18:49:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-08-22 18:49:25,290 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 28 [2020-08-22 18:49:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:49:25,291 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-08-22 18:49:25,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:49:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-08-22 18:49:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 18:49:25,294 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:49:25,294 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:49:25,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:49:25,296 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:49:25,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:49:25,297 INFO L82 PathProgramCache]: Analyzing trace with hash 41013968, now seen corresponding path program 1 times [2020-08-22 18:49:25,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:49:25,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020333544] [2020-08-22 18:49:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:49:25,365 INFO L278 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-08-22 18:49:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:49:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 18:49:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-22 18:49:25,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020333544] [2020-08-22 18:49:25,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:49:25,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:49:25,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671811481] [2020-08-22 18:49:25,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:49:25,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:49:25,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:49:25,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:49:25,972 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 14 states. [2020-08-22 18:49:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:49:26,169 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-08-22 18:49:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:49:26,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-08-22 18:49:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:49:26,172 INFO L225 Difference]: With dead ends: 64 [2020-08-22 18:49:26,172 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 18:49:26,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:49:26,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 18:49:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-08-22 18:49:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 18:49:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-08-22 18:49:26,186 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 38 [2020-08-22 18:49:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:49:26,187 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-08-22 18:49:26,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:49:26,187 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-08-22 18:49:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-08-22 18:49:26,189 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:49:26,189 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:49:26,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:49:26,190 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:49:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:49:26,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1045014785, now seen corresponding path program 2 times [2020-08-22 18:49:26,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:49:26,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982389984] [2020-08-22 18:49:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:49:26,233 INFO L278 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-08-22 18:49:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:26,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:49:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:26,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 18:49:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:49:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-22 18:49:26,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982389984] [2020-08-22 18:49:26,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:49:26,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 18:49:26,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486938170] [2020-08-22 18:49:26,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 18:49:26,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:49:26,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 18:49:26,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-08-22 18:49:26,954 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 19 states. [2020-08-22 18:49:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:49:27,238 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-08-22 18:49:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-22 18:49:27,238 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2020-08-22 18:49:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:49:27,240 INFO L225 Difference]: With dead ends: 60 [2020-08-22 18:49:27,241 INFO L226 Difference]: Without dead ends: 54 [2020-08-22 18:49:27,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2020-08-22 18:49:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-08-22 18:49:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2020-08-22 18:49:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-22 18:49:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2020-08-22 18:49:27,256 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 48 [2020-08-22 18:49:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:49:27,256 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2020-08-22 18:49:27,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 18:49:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2020-08-22 18:49:27,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-22 18:49:27,258 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:49:27,259 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:49:27,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:49:27,259 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:49:27,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:49:27,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1508234768, now seen corresponding path program 1 times [2020-08-22 18:49:27,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:49:27,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921267459] [2020-08-22 18:49:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:49:27,406 INFO L278 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-08-22 18:49:27,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:49:27,409 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: must have same length at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.pairwiseEquality(SmtUtils.java:418) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.constructEpsilon(AcceleratedInterpolation.java:334) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:420) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:293) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-22 18:49:27,417 INFO L168 Benchmark]: Toolchain (without parser) took 3865.03 ms. Allocated memory was 144.2 MB in the beginning and 248.5 MB in the end (delta: 104.3 MB). Free memory was 101.6 MB in the beginning and 155.1 MB in the end (delta: -53.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,419 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.24 ms. Allocated memory is still 144.2 MB. Free memory was 101.4 MB in the beginning and 92.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,422 INFO L168 Benchmark]: Boogie Preprocessor took 29.06 ms. Allocated memory is still 144.2 MB. Free memory was 92.1 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,426 INFO L168 Benchmark]: RCFGBuilder took 346.34 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 167.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,428 INFO L168 Benchmark]: TraceAbstraction took 3257.01 ms. Allocated memory was 200.8 MB in the beginning and 248.5 MB in the end (delta: 47.7 MB). Free memory was 167.4 MB in the beginning and 155.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:27,434 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 144.2 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.24 ms. Allocated memory is still 144.2 MB. Free memory was 101.4 MB in the beginning and 92.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.06 ms. Allocated memory is still 144.2 MB. Free memory was 92.1 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.34 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 90.6 MB in the beginning and 167.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3257.01 ms. Allocated memory was 200.8 MB in the beginning and 248.5 MB in the end (delta: 47.7 MB). Free memory was 167.4 MB in the beginning and 155.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: must have same length de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: must have same length: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.pairwiseEquality(SmtUtils.java:418) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...