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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 17:00:34,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 17:00:34,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 17:00:34,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 17:00:34,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 17:00:34,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 17:00:34,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 17:00:34,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 17:00:34,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 17:00:34,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 17:00:34,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 17:00:34,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 17:00:34,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 17:00:34,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 17:00:34,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 17:00:34,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 17:00:34,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 17:00:34,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 17:00:34,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 17:00:34,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 17:00:34,105 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 17:00:34,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 17:00:34,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 17:00:34,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 17:00:34,120 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 17:00:34,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 17:00:34,121 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 17:00:34,121 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 17:00:34,121 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 17:00:34,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 17:00:34,122 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 17:00:34,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 17:00:34,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 17:00:34,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 17:00:34,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 17:00:34,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 17:00:34,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 17:00:34,125 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 17:00:34,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 17:00:34,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 17:00:34,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 17:00:34,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 17:00:34,126 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 17:00:34,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 17:00:34,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 17:00:34,126 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 17:00:34,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 17:00:34,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 17:00:34,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 17:00:34,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 17:00:34,183 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 17:00:34,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2019-10-02 17:00:34,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c6362fa/9270126258d541f8ac0e38eec556dc7a/FLAGae3603dc4 [2019-10-02 17:00:34,804 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 17:00:34,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label51.c [2019-10-02 17:00:34,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c6362fa/9270126258d541f8ac0e38eec556dc7a/FLAGae3603dc4 [2019-10-02 17:00:35,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c6362fa/9270126258d541f8ac0e38eec556dc7a [2019-10-02 17:00:35,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 17:00:35,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 17:00:35,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 17:00:35,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 17:00:35,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 17:00:35,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62648d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35, skipping insertion in model container [2019-10-02 17:00:35,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,104 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 17:00:35,161 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 17:00:35,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:00:35,660 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 17:00:35,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 17:00:35,846 INFO L192 MainTranslator]: Completed translation [2019-10-02 17:00:35,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35 WrapperNode [2019-10-02 17:00:35,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 17:00:35,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 17:00:35,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 17:00:35,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 17:00:35,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (1/1) ... [2019-10-02 17:00:35,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 17:00:35,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 17:00:35,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 17:00:35,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 17:00:35,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (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 17:00:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 17:00:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 17:00:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 17:00:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 17:00:36,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 17:00:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 17:00:37,156 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 17:00:37,157 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 17:00:37,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:00:37 BoogieIcfgContainer [2019-10-02 17:00:37,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 17:00:37,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 17:00:37,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 17:00:37,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 17:00:37,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 05:00:35" (1/3) ... [2019-10-02 17:00:37,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fe91cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:00:37, skipping insertion in model container [2019-10-02 17:00:37,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 05:00:35" (2/3) ... [2019-10-02 17:00:37,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fe91cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 05:00:37, skipping insertion in model container [2019-10-02 17:00:37,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 05:00:37" (3/3) ... [2019-10-02 17:00:37,168 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2019-10-02 17:00:37,179 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 17:00:37,189 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 17:00:37,206 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 17:00:37,238 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 17:00:37,239 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 17:00:37,239 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 17:00:37,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 17:00:37,240 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 17:00:37,240 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 17:00:37,240 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 17:00:37,240 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 17:00:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-10-02 17:00:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-02 17:00:37,279 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:37,280 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] [2019-10-02 17:00:37,283 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:37,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:37,290 INFO L82 PathProgramCache]: Analyzing trace with hash 588022894, now seen corresponding path program 1 times [2019-10-02 17:00:37,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:37,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:37,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:37,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:37,353 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:37,783 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 17:00:37,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:37,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:37,786 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:37,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:37,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:37,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:37,814 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2019-10-02 17:00:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:38,676 INFO L93 Difference]: Finished difference Result 346 states and 517 transitions. [2019-10-02 17:00:38,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:38,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2019-10-02 17:00:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:38,708 INFO L225 Difference]: With dead ends: 346 [2019-10-02 17:00:38,708 INFO L226 Difference]: Without dead ends: 278 [2019-10-02 17:00:38,712 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 17:00:38,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-02 17:00:38,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-10-02 17:00:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-02 17:00:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 412 transitions. [2019-10-02 17:00:38,824 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 412 transitions. Word has length 112 [2019-10-02 17:00:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:38,826 INFO L475 AbstractCegarLoop]: Abstraction has 278 states and 412 transitions. [2019-10-02 17:00:38,826 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 412 transitions. [2019-10-02 17:00:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-02 17:00:38,838 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:38,839 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] [2019-10-02 17:00:38,841 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:38,843 INFO L82 PathProgramCache]: Analyzing trace with hash -560804229, now seen corresponding path program 1 times [2019-10-02 17:00:38,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:38,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:38,848 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:39,145 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 17:00:39,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:39,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 17:00:39,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:39,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 17:00:39,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 17:00:39,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 17:00:39,149 INFO L87 Difference]: Start difference. First operand 278 states and 412 transitions. Second operand 4 states. [2019-10-02 17:00:40,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:40,231 INFO L93 Difference]: Finished difference Result 683 states and 955 transitions. [2019-10-02 17:00:40,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 17:00:40,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2019-10-02 17:00:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:40,238 INFO L225 Difference]: With dead ends: 683 [2019-10-02 17:00:40,239 INFO L226 Difference]: Without dead ends: 683 [2019-10-02 17:00:40,239 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 17:00:40,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2019-10-02 17:00:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 548. [2019-10-02 17:00:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-10-02 17:00:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 776 transitions. [2019-10-02 17:00:40,267 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 776 transitions. Word has length 129 [2019-10-02 17:00:40,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:40,268 INFO L475 AbstractCegarLoop]: Abstraction has 548 states and 776 transitions. [2019-10-02 17:00:40,268 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 17:00:40,268 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 776 transitions. [2019-10-02 17:00:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-02 17:00:40,271 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:40,272 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] [2019-10-02 17:00:40,272 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash 454696149, now seen corresponding path program 1 times [2019-10-02 17:00:40,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:40,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:40,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:40,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:40,274 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:40,434 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 17:00:40,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:40,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:40,436 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:40,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:40,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:40,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:40,439 INFO L87 Difference]: Start difference. First operand 548 states and 776 transitions. Second operand 3 states. [2019-10-02 17:00:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:40,951 INFO L93 Difference]: Finished difference Result 1088 states and 1436 transitions. [2019-10-02 17:00:40,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:40,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-02 17:00:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:40,959 INFO L225 Difference]: With dead ends: 1088 [2019-10-02 17:00:40,959 INFO L226 Difference]: Without dead ends: 1088 [2019-10-02 17:00:40,960 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 17:00:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-10-02 17:00:40,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 818. [2019-10-02 17:00:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2019-10-02 17:00:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1101 transitions. [2019-10-02 17:00:40,990 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1101 transitions. Word has length 146 [2019-10-02 17:00:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:40,991 INFO L475 AbstractCegarLoop]: Abstraction has 818 states and 1101 transitions. [2019-10-02 17:00:40,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1101 transitions. [2019-10-02 17:00:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-02 17:00:40,995 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:40,995 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] [2019-10-02 17:00:40,996 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:40,996 INFO L82 PathProgramCache]: Analyzing trace with hash -276175347, now seen corresponding path program 1 times [2019-10-02 17:00:40,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:40,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:40,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:40,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:40,998 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:41,226 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 17:00:41,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:41,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 17:00:41,227 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:41,228 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 17:00:41,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 17:00:41,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 17:00:41,229 INFO L87 Difference]: Start difference. First operand 818 states and 1101 transitions. Second operand 6 states. [2019-10-02 17:00:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:42,010 INFO L93 Difference]: Finished difference Result 1394 states and 1780 transitions. [2019-10-02 17:00:42,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 17:00:42,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2019-10-02 17:00:42,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:42,019 INFO L225 Difference]: With dead ends: 1394 [2019-10-02 17:00:42,020 INFO L226 Difference]: Without dead ends: 1394 [2019-10-02 17:00:42,020 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 17:00:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2019-10-02 17:00:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1247. [2019-10-02 17:00:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2019-10-02 17:00:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1599 transitions. [2019-10-02 17:00:42,067 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1599 transitions. Word has length 182 [2019-10-02 17:00:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:42,068 INFO L475 AbstractCegarLoop]: Abstraction has 1247 states and 1599 transitions. [2019-10-02 17:00:42,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 17:00:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1599 transitions. [2019-10-02 17:00:42,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-02 17:00:42,074 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 17:00:42,074 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] [2019-10-02 17:00:42,075 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 17:00:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 17:00:42,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1098604130, now seen corresponding path program 1 times [2019-10-02 17:00:42,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 17:00:42,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:42,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 17:00:42,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 17:00:42,077 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 17:00:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 17:00:42,234 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 17:00:42,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 17:00:42,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 17:00:42,235 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 17:00:42,236 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 17:00:42,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 17:00:42,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 17:00:42,236 INFO L87 Difference]: Start difference. First operand 1247 states and 1599 transitions. Second operand 3 states. [2019-10-02 17:00:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 17:00:42,830 INFO L93 Difference]: Finished difference Result 2063 states and 2609 transitions. [2019-10-02 17:00:42,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 17:00:42,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-02 17:00:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 17:00:42,833 INFO L225 Difference]: With dead ends: 2063 [2019-10-02 17:00:42,833 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 17:00:42,834 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 17:00:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 17:00:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 17:00:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 17:00:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 17:00:42,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 197 [2019-10-02 17:00:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 17:00:42,835 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 17:00:42,835 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 17:00:42,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 17:00:42,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 17:00:42,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 05:00:42 BoogieIcfgContainer [2019-10-02 17:00:42,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 17:00:42,844 INFO L168 Benchmark]: Toolchain (without parser) took 7757.24 ms. Allocated memory was 139.5 MB in the beginning and 371.2 MB in the end (delta: 231.7 MB). Free memory was 85.6 MB in the beginning and 306.7 MB in the end (delta: -221.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:42,845 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 105.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 17:00:42,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.11 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 85.2 MB in the beginning and 158.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:42,847 INFO L168 Benchmark]: Boogie Preprocessor took 112.10 ms. Allocated memory is still 200.8 MB. Free memory was 158.7 MB in the beginning and 153.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:42,848 INFO L168 Benchmark]: RCFGBuilder took 1199.01 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 153.1 MB in the beginning and 167.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:42,849 INFO L168 Benchmark]: TraceAbstraction took 5681.01 ms. Allocated memory was 224.4 MB in the beginning and 371.2 MB in the end (delta: 146.8 MB). Free memory was 167.2 MB in the beginning and 306.7 MB in the end (delta: -139.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. [2019-10-02 17:00:42,853 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 105.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.11 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 85.2 MB in the beginning and 158.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.10 ms. Allocated memory is still 200.8 MB. Free memory was 158.7 MB in the beginning and 153.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1199.01 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 153.1 MB in the beginning and 167.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5681.01 ms. Allocated memory was 224.4 MB in the beginning and 371.2 MB in the end (delta: 146.8 MB). Free memory was 167.2 MB in the beginning and 306.7 MB in the end (delta: -139.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 494]: 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, 5.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 726 SDtfs, 796 SDslu, 115 SDs, 0 SdLazy, 2449 SolverSat, 450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 552 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 766 NumberOfCodeBlocks, 766 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 761 ConstructedInterpolants, 0 QuantifiedInterpolants, 375374 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...