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/nla-digbench/geo3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:35:23,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:35:23,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:35:23,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:35:23,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:35:23,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:35:23,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:35:23,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:35:23,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:35:23,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:35:23,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:35:23,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:35:23,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:35:23,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:35:23,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:35:23,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:35:23,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:35:23,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:35:23,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:35:23,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:35:23,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:35:23,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:35:23,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:35:23,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:35:23,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:35:23,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:35:23,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:35:23,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:35:23,108 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 [2019-10-02 11:35:23,130 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:35:23,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:35:23,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:35:23,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:35:23,133 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:35:23,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:35:23,134 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:35:23,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:35:23,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:35:23,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:35:23,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:35:23,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:35:23,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:35:23,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:35:23,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:35:23,137 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:35:23,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:35:23,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:35:23,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:35:23,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:35:23,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:35:23,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:35:23,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:35:23,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:35:23,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:35:23,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:35:23,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:35:23,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:35:23,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:35:23,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:35:23,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:35:23,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:35:23,191 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:35:23,191 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:35:23,192 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo3.c [2019-10-02 11:35:23,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1011f3c4/5555348d78654b46af97555a0477ee1b/FLAGb88075781 [2019-10-02 11:35:23,645 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:35:23,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo3.c [2019-10-02 11:35:23,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1011f3c4/5555348d78654b46af97555a0477ee1b/FLAGb88075781 [2019-10-02 11:35:24,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1011f3c4/5555348d78654b46af97555a0477ee1b [2019-10-02 11:35:24,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:35:24,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:35:24,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:35:24,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:35:24,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:35:24,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404140b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24, skipping insertion in model container [2019-10-02 11:35:24,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,100 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:35:24,121 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:35:24,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:35:24,337 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:35:24,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:35:24,371 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:35:24,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24 WrapperNode [2019-10-02 11:35:24,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:35:24,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:35:24,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:35:24,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:35:24,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (1/1) ... [2019-10-02 11:35:24,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:35:24,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:35:24,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:35:24,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:35:24,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (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 [2019-10-02 11:35:24,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:35:24,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:35:24,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:35:24,538 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:35:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:35:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:35:24,721 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:35:24,722 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:35:24,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:35:24 BoogieIcfgContainer [2019-10-02 11:35:24,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:35:24,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:35:24,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:35:24,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:35:24,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:35:24" (1/3) ... [2019-10-02 11:35:24,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744ee18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:35:24, skipping insertion in model container [2019-10-02 11:35:24,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:35:24" (2/3) ... [2019-10-02 11:35:24,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744ee18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:35:24, skipping insertion in model container [2019-10-02 11:35:24,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:35:24" (3/3) ... [2019-10-02 11:35:24,733 INFO L109 eAbstractionObserver]: Analyzing ICFG geo3.c [2019-10-02 11:35:24,743 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:35:24,750 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:35:24,768 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:35:24,801 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:35:24,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:35:24,802 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:35:24,802 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:35:24,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:35:24,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:35:24,803 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:35:24,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:35:24,803 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:35:24,817 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-02 11:35:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 11:35:24,821 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:35:24,822 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:35:24,824 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:35:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:35:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1712389503, now seen corresponding path program 1 times [2019-10-02 11:35:24,830 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:35:24,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:35:24,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:24,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:35:24,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:35:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:35:24,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:35:24,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 11:35:24,946 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 11:35:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 11:35:24,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:35:24,960 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-10-02 11:35:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:35:24,981 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-10-02 11:35:24,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 11:35:24,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-02 11:35:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:35:24,992 INFO L225 Difference]: With dead ends: 35 [2019-10-02 11:35:24,992 INFO L226 Difference]: Without dead ends: 15 [2019-10-02 11:35:24,995 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:35:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-02 11:35:25,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-02 11:35:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-02 11:35:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-02 11:35:25,037 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-10-02 11:35:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:35:25,037 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-02 11:35:25,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 11:35:25,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-02 11:35:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 11:35:25,038 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:35:25,039 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:35:25,039 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:35:25,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:35:25,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1704941753, now seen corresponding path program 1 times [2019-10-02 11:35:25,040 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:35:25,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:35:25,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:35:25,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,050 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 11:35:25,050 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 11:35:25,051 INFO L224 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 11:35:25,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:35:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:35:25,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-02 11:35:25,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:35:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:35:25,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:35:25,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 11:35:25,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 11:35:25,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 11:35:25,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:35:25,302 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-10-02 11:35:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:35:25,354 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-02 11:35:25,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 11:35:25,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-02 11:35:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:35:25,356 INFO L225 Difference]: With dead ends: 25 [2019-10-02 11:35:25,356 INFO L226 Difference]: Without dead ends: 22 [2019-10-02 11:35:25,357 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:35:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-02 11:35:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-02 11:35:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-02 11:35:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-10-02 11:35:25,365 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2019-10-02 11:35:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:35:25,366 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-10-02 11:35:25,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 11:35:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-10-02 11:35:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-02 11:35:25,367 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:35:25,368 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:35:25,368 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:35:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:35:25,369 INFO L82 PathProgramCache]: Analyzing trace with hash 241116926, now seen corresponding path program 1 times [2019-10-02 11:35:25,369 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:35:25,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:35:25,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:35:25,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,377 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 11:35:25,378 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 11:35:25,378 INFO L224 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 (exit command is (exit), workingDir is null) [2019-10-02 11:35:25,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 11:35:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:35:25,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-02 11:35:25,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:35:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:35:25,563 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 11:35:25,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-02 11:35:25,564 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 11:35:25,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 11:35:25,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-02 11:35:25,567 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2019-10-02 11:35:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:35:25,697 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-10-02 11:35:25,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 11:35:25,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-10-02 11:35:25,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:35:25,699 INFO L225 Difference]: With dead ends: 32 [2019-10-02 11:35:25,699 INFO L226 Difference]: Without dead ends: 29 [2019-10-02 11:35:25,700 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-02 11:35:25,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-02 11:35:25,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-02 11:35:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-02 11:35:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-10-02 11:35:25,711 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2019-10-02 11:35:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:35:25,712 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-10-02 11:35:25,712 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 11:35:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-10-02 11:35:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-02 11:35:25,713 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:35:25,713 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:35:25,713 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:35:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:35:25,714 INFO L82 PathProgramCache]: Analyzing trace with hash 311210265, now seen corresponding path program 2 times [2019-10-02 11:35:25,714 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:35:25,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:35:25,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:35:25,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:25,726 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 11:35:25,726 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 11:35:25,729 INFO L224 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 (exit command is (exit), workingDir is null) [2019-10-02 11:35:25,753 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 11:35:25,784 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 11:35:25,785 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:35:25,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-02 11:35:25,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:35:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 11:35:25,916 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 11:35:25,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-10-02 11:35:25,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 11:35:25,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 11:35:25,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-02 11:35:25,918 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2019-10-02 11:35:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:35:26,458 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-10-02 11:35:26,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 11:35:26,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-10-02 11:35:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:35:26,461 INFO L225 Difference]: With dead ends: 39 [2019-10-02 11:35:26,461 INFO L226 Difference]: Without dead ends: 36 [2019-10-02 11:35:26,462 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-02 11:35:26,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-02 11:35:26,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-02 11:35:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-02 11:35:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2019-10-02 11:35:26,470 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 24 [2019-10-02 11:35:26,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:35:26,470 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2019-10-02 11:35:26,470 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 11:35:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-10-02 11:35:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-02 11:35:26,472 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:35:26,472 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:35:26,472 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:35:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:35:26,473 INFO L82 PathProgramCache]: Analyzing trace with hash -928013666, now seen corresponding path program 3 times [2019-10-02 11:35:26,473 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:35:26,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:35:26,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:26,475 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 11:35:26,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:35:26,484 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 11:35:26,484 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 11:35:26,484 INFO L224 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 11:35:26,529 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 11:35:26,542 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-02 11:35:26,542 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:35:26,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-02 11:35:26,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:35:26,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 11:35:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-02 11:35:26,648 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 11:35:26,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-02 11:35:26,648 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 11:35:26,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 11:35:26,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-02 11:35:26,649 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 8 states. [2019-10-02 11:35:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:35:27,035 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-10-02 11:35:27,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 11:35:27,036 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-10-02 11:35:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:35:27,037 INFO L225 Difference]: With dead ends: 36 [2019-10-02 11:35:27,037 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:35:27,038 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 11:35:27,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:35:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:35:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:35:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:35:27,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-02 11:35:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:35:27,039 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:35:27,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 11:35:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:35:27,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:35:27,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:35:42,293 WARN L191 SmtUtils]: Spent 15.17 s on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-10-02 11:35:42,378 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-02 11:35:42,378 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:35:42,378 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:35:42,378 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 11:35:42,378 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:35:42,379 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:35:42,379 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 39) the Hoare annotation is: true [2019-10-02 11:35:42,379 INFO L439 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0))) [2019-10-02 11:35:42,379 INFO L443 ceAbstractionStarter]: For program point L28-1(lines 27 36) no Hoare annotation was computed. [2019-10-02 11:35:42,380 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0))) [2019-10-02 11:35:42,380 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 39) no Hoare annotation was computed. [2019-10-02 11:35:42,380 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0)) (and (= main_~x~0 (+ (* (+ main_~a~0 (* main_~a~0 main_~z~0)) main_~z~0) main_~a~0)) (= main_~y~0 (* main_~z~0 main_~z~0)))) [2019-10-02 11:35:42,380 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 39) no Hoare annotation was computed. [2019-10-02 11:35:42,380 INFO L443 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-10-02 11:35:42,380 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-10-02 11:35:42,381 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-10-02 11:35:42,381 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-10-02 11:35:42,381 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-10-02 11:35:42,381 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2019-10-02 11:35:42,381 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-02 11:35:42,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:35:42 BoogieIcfgContainer [2019-10-02 11:35:42,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:35:42,404 INFO L168 Benchmark]: Toolchain (without parser) took 18323.56 ms. Allocated memory was 140.5 MB in the beginning and 225.4 MB in the end (delta: 84.9 MB). Free memory was 86.6 MB in the beginning and 147.5 MB in the end (delta: -61.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,405 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.88 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 76.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,408 INFO L168 Benchmark]: Boogie Preprocessor took 114.90 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 76.9 MB in the beginning and 177.2 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,409 INFO L168 Benchmark]: RCFGBuilder took 235.58 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 165.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,410 INFO L168 Benchmark]: TraceAbstraction took 17676.15 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 165.5 MB in the beginning and 147.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. [2019-10-02 11:35:42,414 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.88 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 76.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.90 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 76.9 MB in the beginning and 177.2 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 235.58 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 165.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17676.15 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 165.5 MB in the beginning and 147.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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 - InvariantResult [Line: 27]: Loop Invariant [2019-10-02 11:35:42,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-10-02 11:35:42,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-10-02 11:35:42,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] Derived loop invariant: (\exists v_main_~y~0_13 : int, v_main_~x~0_14 : int :: (x == a + v_main_~x~0_14 * z && y == v_main_~y~0_13 * z) && 0 == -(v_main_~y~0_13 * (a * z)) + (-v_main_~x~0_14 + v_main_~x~0_14 * z + a)) || (y == 1 && a == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 17.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 15.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 41 SDslu, 217 SDs, 0 SdLazy, 172 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 17 PreInvPairs, 29 NumberOfFragments, 139 HoareAnnotationTreeSize, 17 FomulaSimplifications, 180 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 15.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 92 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 2 QuantifiedInterpolants, 7731 SizeOfPredicates, 12 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 39/52 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...