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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id2_b3_o5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:27:28,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:27:28,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:27:28,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:27:28,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:27:28,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:27:28,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:27:28,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:27:28,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:27:28,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:27:28,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:27:28,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:27:28,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:27:28,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:27:28,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:27:28,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:27:28,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:27:28,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:27:28,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:27:28,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:27:28,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:27:28,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:27:28,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:27:28,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:27:28,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 06:27:28,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:27:28,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:27:28,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:27:28,902 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 [2019-09-08 06:27:28,937 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:27:28,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:27:28,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:27:28,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:27:28,946 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:27:28,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:27:28,947 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:27:28,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:27:28,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:27:28,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:27:28,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:27:28,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:27:28,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:27:28,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:27:28,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:27:28,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:27:28,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:27:28,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:27:28,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:27:28,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:27:28,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:27:28,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:27:28,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:27:28,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:27:28,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:27:28,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:27:28,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:27:28,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:27:28,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:27:29,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:27:29,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:27:29,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:27:29,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:27:29,034 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:27:29,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_b3_o5.c [2019-09-08 06:27:29,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bfc446f/e6d1ba3318f045b1bd89c7be4ea1cf9e/FLAGcf634bfa2 [2019-09-08 06:27:29,579 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:27:29,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id2_b3_o5.c [2019-09-08 06:27:29,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bfc446f/e6d1ba3318f045b1bd89c7be4ea1cf9e/FLAGcf634bfa2 [2019-09-08 06:27:29,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bfc446f/e6d1ba3318f045b1bd89c7be4ea1cf9e [2019-09-08 06:27:29,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:27:29,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:27:29,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:27:29,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:27:29,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:27:29,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:27:29" (1/1) ... [2019-09-08 06:27:29,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d0ad9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:29, skipping insertion in model container [2019-09-08 06:27:29,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:27:29" (1/1) ... [2019-09-08 06:27:29,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:27:29,991 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:27:30,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:27:30,159 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:27:30,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:27:30,190 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:27:30,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30 WrapperNode [2019-09-08 06:27:30,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:27:30,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:27:30,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:27:30,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:27:30,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (1/1) ... [2019-09-08 06:27:30,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:27:30,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:27:30,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:27:30,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:27:30,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (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 [2019-09-08 06:27:30,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:27:30,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:27:30,374 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-08 06:27:30,374 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2019-09-08 06:27:30,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:27:30,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:27:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:27:30,572 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:27:30,572 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 06:27:30,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:27:30 BoogieIcfgContainer [2019-09-08 06:27:30,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:27:30,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:27:30,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:27:30,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:27:30,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:27:29" (1/3) ... [2019-09-08 06:27:30,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d21975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:27:30, skipping insertion in model container [2019-09-08 06:27:30,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:30" (2/3) ... [2019-09-08 06:27:30,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d21975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:27:30, skipping insertion in model container [2019-09-08 06:27:30,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:27:30" (3/3) ... [2019-09-08 06:27:30,605 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b3_o5.c [2019-09-08 06:27:30,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:27:30,649 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:27:30,669 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:27:30,702 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:27:30,703 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:27:30,703 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:27:30,704 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:27:30,704 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:27:30,704 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:27:30,704 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:27:30,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:27:30,704 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:27:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-09-08 06:27:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-08 06:27:30,726 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:30,726 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:30,728 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash 128923731, now seen corresponding path program 1 times [2019-09-08 06:27:30,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:30,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:30,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:30,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:30,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:27:30,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:27:30,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:27:30,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:27:30,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:27:30,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:30,992 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 5 states. [2019-09-08 06:27:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:31,051 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2019-09-08 06:27:31,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:27:31,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-08 06:27:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:31,062 INFO L225 Difference]: With dead ends: 40 [2019-09-08 06:27:31,062 INFO L226 Difference]: Without dead ends: 26 [2019-09-08 06:27:31,065 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:31,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-08 06:27:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-08 06:27:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-08 06:27:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-08 06:27:31,106 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 13 [2019-09-08 06:27:31,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:31,106 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-08 06:27:31,106 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:27:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-08 06:27:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 06:27:31,108 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:31,108 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:31,109 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:31,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:31,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1945633833, now seen corresponding path program 1 times [2019-09-08 06:27:31,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:31,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:31,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:31,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:27:31,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:27:31,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:27:31,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:27:31,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:27:31,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:31,219 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states. [2019-09-08 06:27:31,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:31,238 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-09-08 06:27:31,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:27:31,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-09-08 06:27:31,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:31,240 INFO L225 Difference]: With dead ends: 32 [2019-09-08 06:27:31,241 INFO L226 Difference]: Without dead ends: 28 [2019-09-08 06:27:31,242 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-08 06:27:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-09-08 06:27:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-08 06:27:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-08 06:27:31,249 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2019-09-08 06:27:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:31,250 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-08 06:27:31,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:27:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-08 06:27:31,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 06:27:31,251 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:31,251 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:31,252 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1974262984, now seen corresponding path program 1 times [2019-09-08 06:27:31,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:31,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:31,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:31,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:27:31,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:27:31,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:27:31,424 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:27:31,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:27:31,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:27:31,425 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 8 states. [2019-09-08 06:27:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:31,485 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2019-09-08 06:27:31,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:27:31,486 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-09-08 06:27:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:31,488 INFO L225 Difference]: With dead ends: 48 [2019-09-08 06:27:31,488 INFO L226 Difference]: Without dead ends: 32 [2019-09-08 06:27:31,489 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 06:27:31,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-09-08 06:27:31,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2019-09-08 06:27:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-08 06:27:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-09-08 06:27:31,497 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20 [2019-09-08 06:27:31,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:31,498 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-09-08 06:27:31,498 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:27:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-09-08 06:27:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 06:27:31,500 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:31,501 INFO L399 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] [2019-09-08 06:27:31,503 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:31,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:31,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1451784300, now seen corresponding path program 1 times [2019-09-08 06:27:31,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:31,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:31,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:31,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:27:31,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:27:31,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:27:31,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:27:31,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:27:31,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:31,657 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2019-09-08 06:27:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:31,687 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2019-09-08 06:27:31,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:27:31,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-09-08 06:27:31,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:31,692 INFO L225 Difference]: With dead ends: 50 [2019-09-08 06:27:31,692 INFO L226 Difference]: Without dead ends: 36 [2019-09-08 06:27:31,693 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-08 06:27:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-09-08 06:27:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-08 06:27:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-09-08 06:27:31,708 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 27 [2019-09-08 06:27:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:31,709 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-09-08 06:27:31,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:27:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-09-08 06:27:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 06:27:31,711 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:31,711 INFO L399 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] [2019-09-08 06:27:31,712 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:31,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1255270795, now seen corresponding path program 1 times [2019-09-08 06:27:31,713 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:31,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:31,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:31,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:27:31,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:31,968 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:27:31,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:32,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-08 06:27:32,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:27:32,132 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:32,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-09-08 06:27:32,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 06:27:32,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 06:27:32,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-09-08 06:27:32,134 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 12 states. [2019-09-08 06:27:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:32,277 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2019-09-08 06:27:32,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 06:27:32,278 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2019-09-08 06:27:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:32,282 INFO L225 Difference]: With dead ends: 64 [2019-09-08 06:27:32,282 INFO L226 Difference]: Without dead ends: 44 [2019-09-08 06:27:32,283 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-09-08 06:27:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-08 06:27:32,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2019-09-08 06:27:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-08 06:27:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-09-08 06:27:32,294 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2019-09-08 06:27:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:32,296 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-09-08 06:27:32,297 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 06:27:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-09-08 06:27:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-08 06:27:32,299 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:32,300 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:32,300 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:32,300 INFO L82 PathProgramCache]: Analyzing trace with hash 709659056, now seen corresponding path program 1 times [2019-09-08 06:27:32,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:32,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:32,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:32,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:32,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 06:27:32,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:32,559 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:32,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:32,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 06:27:32,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 06:27:32,657 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:32,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-09-08 06:27:32,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 06:27:32,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 06:27:32,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2019-09-08 06:27:32,660 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-09-08 06:27:32,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:32,804 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2019-09-08 06:27:32,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 06:27:32,804 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2019-09-08 06:27:32,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:32,806 INFO L225 Difference]: With dead ends: 74 [2019-09-08 06:27:32,806 INFO L226 Difference]: Without dead ends: 54 [2019-09-08 06:27:32,807 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2019-09-08 06:27:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-08 06:27:32,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-09-08 06:27:32,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-09-08 06:27:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-09-08 06:27:32,815 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 34 [2019-09-08 06:27:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:32,815 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-09-08 06:27:32,815 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 06:27:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-09-08 06:27:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-08 06:27:32,817 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:32,817 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:32,817 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:32,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:32,818 INFO L82 PathProgramCache]: Analyzing trace with hash -797786941, now seen corresponding path program 2 times [2019-09-08 06:27:32,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:32,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:32,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:32,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:32,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 06:27:33,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:33,091 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:33,126 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 06:27:33,162 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 06:27:33,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:33,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 06:27:33,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 06:27:33,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:33,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-09-08 06:27:33,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 06:27:33,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 06:27:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2019-09-08 06:27:33,228 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-09-08 06:27:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:33,420 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2019-09-08 06:27:33,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 06:27:33,421 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2019-09-08 06:27:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:33,422 INFO L225 Difference]: With dead ends: 78 [2019-09-08 06:27:33,423 INFO L226 Difference]: Without dead ends: 60 [2019-09-08 06:27:33,424 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2019-09-08 06:27:33,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-09-08 06:27:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2019-09-08 06:27:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-08 06:27:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-09-08 06:27:33,431 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 41 [2019-09-08 06:27:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:33,432 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-09-08 06:27:33,432 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 06:27:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-09-08 06:27:33,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-08 06:27:33,434 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:33,434 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:33,434 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:33,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:33,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1496626328, now seen corresponding path program 2 times [2019-09-08 06:27:33,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:33,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:33,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:33,436 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:27:33,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 06:27:33,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:33,661 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:27:33,676 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:33,692 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-08 06:27:33,693 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:33,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 06:27:33,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-08 06:27:33,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:27:33,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2019-09-08 06:27:33,774 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 06:27:33,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 06:27:33,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2019-09-08 06:27:33,776 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 17 states. [2019-09-08 06:27:33,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:33,968 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2019-09-08 06:27:33,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 06:27:33,968 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 48 [2019-09-08 06:27:33,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:33,969 INFO L225 Difference]: With dead ends: 66 [2019-09-08 06:27:33,969 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 06:27:33,971 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2019-09-08 06:27:33,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 06:27:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 06:27:33,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 06:27:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 06:27:33,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2019-09-08 06:27:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:33,973 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 06:27:33,973 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 06:27:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 06:27:33,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 06:27:33,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 06:27:34,000 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 06:27:34,000 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:27:34,001 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-09-08 06:27:34,001 INFO L446 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: true [2019-09-08 06:27:34,001 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-09-08 06:27:34,001 INFO L443 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-09-08 06:27:34,001 INFO L443 ceAbstractionStarter]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed. [2019-09-08 06:27:34,001 INFO L446 ceAbstractionStarter]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true [2019-09-08 06:27:34,002 INFO L443 ceAbstractionStarter]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed. [2019-09-08 06:27:34,002 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:27:34,002 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 06:27:34,002 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 06:27:34,003 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 06:27:34,003 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 21 27) the Hoare annotation is: true [2019-09-08 06:27:34,003 INFO L443 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-09-08 06:27:34,003 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 21 27) no Hoare annotation was computed. [2019-09-08 06:27:34,004 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-09-08 06:27:34,004 INFO L446 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: true [2019-09-08 06:27:34,004 INFO L443 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-09-08 06:27:34,004 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 21 27) no Hoare annotation was computed. [2019-09-08 06:27:34,004 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-09-08 06:27:34,004 INFO L443 ceAbstractionStarter]: For program point idFINAL(lines 7 12) no Hoare annotation was computed. [2019-09-08 06:27:34,005 INFO L443 ceAbstractionStarter]: For program point idEXIT(lines 7 12) no Hoare annotation was computed. [2019-09-08 06:27:34,005 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-09-08 06:27:34,005 INFO L446 ceAbstractionStarter]: At program point L9(line 9) the Hoare annotation is: true [2019-09-08 06:27:34,006 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-09-08 06:27:34,007 INFO L443 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-09-08 06:27:34,008 INFO L446 ceAbstractionStarter]: At program point idENTRY(lines 7 12) the Hoare annotation is: true [2019-09-08 06:27:34,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:27:34 BoogieIcfgContainer [2019-09-08 06:27:34,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:27:34,017 INFO L168 Benchmark]: Toolchain (without parser) took 4058.96 ms. Allocated memory was 134.2 MB in the beginning and 257.4 MB in the end (delta: 123.2 MB). Free memory was 90.7 MB in the beginning and 121.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,019 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.11 ms. Allocated memory is still 134.2 MB. Free memory was 90.3 MB in the beginning and 80.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,022 INFO L168 Benchmark]: Boogie Preprocessor took 119.76 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 80.7 MB in the beginning and 177.3 MB in the end (delta: -96.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,024 INFO L168 Benchmark]: RCFGBuilder took 263.42 ms. Allocated memory is still 200.3 MB. Free memory was 177.3 MB in the beginning and 165.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,028 INFO L168 Benchmark]: TraceAbstraction took 3429.65 ms. Allocated memory was 200.3 MB in the beginning and 257.4 MB in the end (delta: 57.1 MB). Free memory was 164.6 MB in the beginning and 121.5 MB in the end (delta: 43.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:34,035 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.11 ms. Allocated memory is still 134.2 MB. Free memory was 90.3 MB in the beginning and 80.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.76 ms. Allocated memory was 134.2 MB in the beginning and 200.3 MB in the end (delta: 66.1 MB). Free memory was 80.7 MB in the beginning and 177.3 MB in the end (delta: -96.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 263.42 ms. Allocated memory is still 200.3 MB. Free memory was 177.3 MB in the beginning and 165.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3429.65 ms. Allocated memory was 200.3 MB in the beginning and 257.4 MB in the end (delta: 57.1 MB). Free memory was 164.6 MB in the beginning and 121.5 MB in the end (delta: 43.1 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 32 SDslu, 1855 SDs, 0 SdLazy, 483 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 150 SyntacticMatches, 6 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 380 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 368 ConstructedInterpolants, 0 QuantifiedInterpolants, 38656 SizeOfPredicates, 13 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 110/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...