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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 17:00:24,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 17:00:24,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 17:00:24,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 17:00:24,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 17:00:24,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 17:00:24,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 17:00:24,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 17:00:24,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 17:00:24,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 17:00:24,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 17:00:24,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 17:00:24,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 17:00:24,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 17:00:24,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 17:00:24,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 17:00:24,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 17:00:24,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 17:00:24,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 17:00:24,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 17:00:24,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 17:00:24,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 17:00:24,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 17:00:24,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 17:00:24,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 17:00:24,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 17:00:24,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 17:00:24,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 17:00:24,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 17:00:24,843 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 17:00:24,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 17:00:24,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 17:00:24,844 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 17:00:24,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 17:00:24,845 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 17:00:24,845 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 17:00:24,845 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 17:00:24,845 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 17:00:24,846 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 17:00:24,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 17:00:24,846 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 17:00:24,847 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 17:00:24,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 17:00:24,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 17:00:24,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 17:00:24,848 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 17:00:24,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 17:00:24,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:00:24,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 17:00:24,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 17:00:24,849 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 17:00:24,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 17:00:24,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 17:00:24,850 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 17:00:24,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 17:00:24,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 17:00:24,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 17:00:24,919 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 17:00:24,920 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 17:00:24,921 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2019-10-02 17:00:24,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d43b4d25/466d87ad934e41ff808b36f74558ce7d/FLAG50523736d [2019-10-02 17:00:25,523 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 17:00:25,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label48.c [2019-10-02 17:00:25,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d43b4d25/466d87ad934e41ff808b36f74558ce7d/FLAG50523736d [2019-10-02 17:00:25,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d43b4d25/466d87ad934e41ff808b36f74558ce7d [2019-10-02 17:00:25,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 17:00:25,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 17:00:25,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 17:00:25,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 17:00:25,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 17:00:25,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:00:25" (1/1) ... [2019-10-02 17:00:25,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:25, skipping insertion in model container [2019-10-02 17:00:25,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:00:25" (1/1) ... [2019-10-02 17:00:25,840 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 17:00:25,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 17:00:26,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:00:26,433 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 17:00:26,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:00:26,560 INFO L192 MainTranslator]: Completed translation [2019-10-02 17:00:26,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26 WrapperNode [2019-10-02 17:00:26,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 17:00:26,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 17:00:26,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 17:00:26,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 17:00:26,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (1/1) ... [2019-10-02 17:00:26,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 17:00:26,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 17:00:26,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 17:00:26,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 17:00:26,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (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 17:00:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 17:00:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 17:00:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 17:00:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 17:00:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 17:00:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 17:00:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 17:00:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 17:00:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 17:00:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 17:00:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 17:00:28,274 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 17:00:28,275 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 17:00:28,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:00:28 BoogieIcfgContainer [2019-10-02 17:00:28,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 17:00:28,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 17:00:28,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 17:00:28,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 17:00:28,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 05:00:25" (1/3) ... [2019-10-02 17:00:28,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24183d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:00:28, skipping insertion in model container [2019-10-02 17:00:28,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:26" (2/3) ... [2019-10-02 17:00:28,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24183d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:00:28, skipping insertion in model container [2019-10-02 17:00:28,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:00:28" (3/3) ... [2019-10-02 17:00:28,289 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2019-10-02 17:00:28,301 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 17:00:28,315 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 17:00:28,336 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 17:00:28,375 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 17:00:28,377 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 17:00:28,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 17:00:28,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 17:00:28,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 17:00:28,378 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 17:00:28,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 17:00:28,378 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 17:00:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-10-02 17:00:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-02 17:00:28,436 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:28,437 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:00:28,439 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:28,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:28,445 INFO L82 PathProgramCache]: Analyzing trace with hash 811202191, now seen corresponding path program 1 times [2019-10-02 17:00:28,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:28,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:28,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:28,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:28,511 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:29,064 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 17:00:29,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:29,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:29,067 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:29,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:29,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:29,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:29,091 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2019-10-02 17:00:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:30,113 INFO L93 Difference]: Finished difference Result 346 states and 517 transitions. [2019-10-02 17:00:30,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:30,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-02 17:00:30,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:30,144 INFO L225 Difference]: With dead ends: 346 [2019-10-02 17:00:30,144 INFO L226 Difference]: Without dead ends: 278 [2019-10-02 17:00:30,147 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:30,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-02 17:00:30,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-10-02 17:00:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-02 17:00:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 412 transitions. [2019-10-02 17:00:30,255 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 412 transitions. Word has length 127 [2019-10-02 17:00:30,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:30,256 INFO L475 AbstractCegarLoop]: Abstraction has 278 states and 412 transitions. [2019-10-02 17:00:30,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:30,257 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 412 transitions. [2019-10-02 17:00:30,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-02 17:00:30,272 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:30,275 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:00:30,275 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:30,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:30,276 INFO L82 PathProgramCache]: Analyzing trace with hash -694243102, now seen corresponding path program 1 times [2019-10-02 17:00:30,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:30,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:30,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:30,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:30,280 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:00:30,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:30,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 17:00:30,526 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:30,529 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 17:00:30,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 17:00:30,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:00:30,530 INFO L87 Difference]: Start difference. First operand 278 states and 412 transitions. Second operand 4 states. [2019-10-02 17:00:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:31,589 INFO L93 Difference]: Finished difference Result 683 states and 955 transitions. [2019-10-02 17:00:31,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 17:00:31,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2019-10-02 17:00:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:31,597 INFO L225 Difference]: With dead ends: 683 [2019-10-02 17:00:31,597 INFO L226 Difference]: Without dead ends: 683 [2019-10-02 17:00:31,598 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:00:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2019-10-02 17:00:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 548. [2019-10-02 17:00:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-10-02 17:00:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 776 transitions. [2019-10-02 17:00:31,620 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 776 transitions. Word has length 144 [2019-10-02 17:00:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:31,621 INFO L475 AbstractCegarLoop]: Abstraction has 548 states and 776 transitions. [2019-10-02 17:00:31,622 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 17:00:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 776 transitions. [2019-10-02 17:00:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-02 17:00:31,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:31,625 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:00:31,625 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:31,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash -635854008, now seen corresponding path program 1 times [2019-10-02 17:00:31,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:31,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:31,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:31,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:31,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:00:31,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:31,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:31,785 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:31,786 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:31,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:31,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:31,787 INFO L87 Difference]: Start difference. First operand 548 states and 776 transitions. Second operand 3 states. [2019-10-02 17:00:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:32,359 INFO L93 Difference]: Finished difference Result 1088 states and 1436 transitions. [2019-10-02 17:00:32,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:32,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-02 17:00:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:32,366 INFO L225 Difference]: With dead ends: 1088 [2019-10-02 17:00:32,366 INFO L226 Difference]: Without dead ends: 1088 [2019-10-02 17:00:32,367 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-10-02 17:00:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 818. [2019-10-02 17:00:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2019-10-02 17:00:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1101 transitions. [2019-10-02 17:00:32,395 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1101 transitions. Word has length 161 [2019-10-02 17:00:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:32,396 INFO L475 AbstractCegarLoop]: Abstraction has 818 states and 1101 transitions. [2019-10-02 17:00:32,396 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1101 transitions. [2019-10-02 17:00:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-02 17:00:32,400 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:32,400 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:00:32,401 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1729674480, now seen corresponding path program 1 times [2019-10-02 17:00:32,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:32,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:32,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:32,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:32,403 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 17:00:32,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:32,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 17:00:32,576 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:32,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 17:00:32,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 17:00:32,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 17:00:32,577 INFO L87 Difference]: Start difference. First operand 818 states and 1101 transitions. Second operand 6 states. [2019-10-02 17:00:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:33,432 INFO L93 Difference]: Finished difference Result 1394 states and 1780 transitions. [2019-10-02 17:00:33,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 17:00:33,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2019-10-02 17:00:33,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:33,440 INFO L225 Difference]: With dead ends: 1394 [2019-10-02 17:00:33,440 INFO L226 Difference]: Without dead ends: 1394 [2019-10-02 17:00:33,441 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 17:00:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2019-10-02 17:00:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1247. [2019-10-02 17:00:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2019-10-02 17:00:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1599 transitions. [2019-10-02 17:00:33,482 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1599 transitions. Word has length 197 [2019-10-02 17:00:33,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:33,482 INFO L475 AbstractCegarLoop]: Abstraction has 1247 states and 1599 transitions. [2019-10-02 17:00:33,482 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 17:00:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1599 transitions. [2019-10-02 17:00:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-02 17:00:33,488 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:33,488 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 17:00:33,489 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:33,489 INFO L82 PathProgramCache]: Analyzing trace with hash 123589471, now seen corresponding path program 1 times [2019-10-02 17:00:33,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:33,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:33,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:33,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:33,491 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-02 17:00:33,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:33,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:33,664 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:33,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:33,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:33,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:33,665 INFO L87 Difference]: Start difference. First operand 1247 states and 1599 transitions. Second operand 3 states. [2019-10-02 17:00:34,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:34,196 INFO L93 Difference]: Finished difference Result 2063 states and 2609 transitions. [2019-10-02 17:00:34,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:34,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-02 17:00:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:34,204 INFO L225 Difference]: With dead ends: 2063 [2019-10-02 17:00:34,204 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 17:00:34,205 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 17:00:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 17:00:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 17:00:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 17:00:34,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2019-10-02 17:00:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:34,208 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 17:00:34,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 17:00:34,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 17:00:34,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 05:00:34 BoogieIcfgContainer [2019-10-02 17:00:34,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 17:00:34,227 INFO L168 Benchmark]: Toolchain (without parser) took 8400.71 ms. Allocated memory was 131.1 MB in the beginning and 398.5 MB in the end (delta: 267.4 MB). Free memory was 84.7 MB in the beginning and 357.5 MB in the end (delta: -272.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 17:00:34,228 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 131.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 17:00:34,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.87 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 84.5 MB in the beginning and 155.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:34,232 INFO L168 Benchmark]: Boogie Preprocessor took 158.15 ms. Allocated memory is still 199.2 MB. Free memory was 155.2 MB in the beginning and 150.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:34,233 INFO L168 Benchmark]: RCFGBuilder took 1558.14 ms. Allocated memory was 199.2 MB in the beginning and 219.7 MB in the end (delta: 20.4 MB). Free memory was 150.6 MB in the beginning and 163.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:34,235 INFO L168 Benchmark]: TraceAbstraction took 5942.25 ms. Allocated memory was 219.7 MB in the beginning and 398.5 MB in the end (delta: 178.8 MB). Free memory was 163.9 MB in the beginning and 357.5 MB in the end (delta: -193.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 17:00:34,248 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 131.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.87 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 84.5 MB in the beginning and 155.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.15 ms. Allocated memory is still 199.2 MB. Free memory was 155.2 MB in the beginning and 150.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1558.14 ms. Allocated memory was 199.2 MB in the beginning and 219.7 MB in the end (delta: 20.4 MB). Free memory was 150.6 MB in the beginning and 163.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5942.25 ms. Allocated memory was 219.7 MB in the beginning and 398.5 MB in the end (delta: 178.8 MB). Free memory was 163.9 MB in the beginning and 357.5 MB in the end (delta: -193.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 539]: 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 4 procedures, 207 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 4.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 726 SDtfs, 736 SDslu, 115 SDs, 0 SdLazy, 2449 SolverSat, 450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 552 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 836 ConstructedInterpolants, 0 QuantifiedInterpolants, 450344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 206/206 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...