/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:29:36,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:29:36,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:29:36,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:29:36,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:29:36,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:29:36,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:29:36,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:29:36,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:29:36,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:29:36,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:29:36,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:29:36,786 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:29:36,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:29:36,787 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:29:36,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:29:36,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:29:36,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:29:36,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:29:36,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:29:36,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:29:36,789 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:29:36,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:29:36,790 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:29:36,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:29:36,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:29:36,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:29:36,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:29:36,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:29:36,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:29:36,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:29:36,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:29:36,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:29:36,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:29:36,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:29:36,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:29:36,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 22:29:37,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:29:37,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:29:37,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:29:37,085 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:29:37,085 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:29:37,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2019-11-06 22:29:37,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b6eec48/8ce63e89cefa4f5889aa829ea5a4512f/FLAG30ed862d6 [2019-11-06 22:29:37,666 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:29:37,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label23.c [2019-11-06 22:29:37,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b6eec48/8ce63e89cefa4f5889aa829ea5a4512f/FLAG30ed862d6 [2019-11-06 22:29:38,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47b6eec48/8ce63e89cefa4f5889aa829ea5a4512f [2019-11-06 22:29:38,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:29:38,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:29:38,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:29:38,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:29:38,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:29:38,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d04c9f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38, skipping insertion in model container [2019-11-06 22:29:38,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,027 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:29:38,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:29:38,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:29:38,588 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:29:38,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:29:38,764 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:29:38,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38 WrapperNode [2019-11-06 22:29:38,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:29:38,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:29:38,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:29:38,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:29:38,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (1/1) ... [2019-11-06 22:29:38,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:29:38,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:29:38,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:29:38,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:29:38,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (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 [2019-11-06 22:29:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:29:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:29:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 22:29:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:29:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 22:29:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:29:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:29:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:29:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:29:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:29:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:29:39,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:29:39,987 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 22:29:39,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:39 BoogieIcfgContainer [2019-11-06 22:29:39,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:29:39,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:29:39,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:29:39,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:29:39,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:38" (1/3) ... [2019-11-06 22:29:39,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ffa56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:39, skipping insertion in model container [2019-11-06 22:29:39,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:38" (2/3) ... [2019-11-06 22:29:39,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713ffa56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:39, skipping insertion in model container [2019-11-06 22:29:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:39" (3/3) ... [2019-11-06 22:29:39,996 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label23.c [2019-11-06 22:29:40,006 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:29:40,014 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:29:40,025 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:29:40,051 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:29:40,052 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:29:40,052 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:29:40,052 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:29:40,052 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:29:40,053 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:29:40,053 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:29:40,053 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:29:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-11-06 22:29:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-06 22:29:40,088 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:40,089 INFO L410 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] [2019-11-06 22:29:40,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:40,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:40,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1083972551, now seen corresponding path program 1 times [2019-11-06 22:29:40,106 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:40,106 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643554057] [2019-11-06 22:29:40,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:40,490 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643554057] [2019-11-06 22:29:40,491 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:40,491 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:29:40,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418645631] [2019-11-06 22:29:40,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:40,500 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:40,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:40,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:40,517 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2019-11-06 22:29:41,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:41,408 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2019-11-06 22:29:41,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:29:41,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-11-06 22:29:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:41,436 INFO L225 Difference]: With dead ends: 547 [2019-11-06 22:29:41,436 INFO L226 Difference]: Without dead ends: 278 [2019-11-06 22:29:41,446 INFO L630 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 [2019-11-06 22:29:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-06 22:29:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-06 22:29:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-06 22:29:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2019-11-06 22:29:41,543 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 101 [2019-11-06 22:29:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:41,544 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2019-11-06 22:29:41,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:29:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2019-11-06 22:29:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-06 22:29:41,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:41,550 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:29:41,550 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:41,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:41,550 INFO L82 PathProgramCache]: Analyzing trace with hash -322237296, now seen corresponding path program 1 times [2019-11-06 22:29:41,551 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:41,551 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060271376] [2019-11-06 22:29:41,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:41,712 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060271376] [2019-11-06 22:29:41,712 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:41,712 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:29:41,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605480571] [2019-11-06 22:29:41,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:29:41,715 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:41,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:29:41,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:29:41,716 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2019-11-06 22:29:42,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:42,469 INFO L93 Difference]: Finished difference Result 703 states and 1026 transitions. [2019-11-06 22:29:42,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:29:42,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2019-11-06 22:29:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:42,475 INFO L225 Difference]: With dead ends: 703 [2019-11-06 22:29:42,475 INFO L226 Difference]: Without dead ends: 431 [2019-11-06 22:29:42,476 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:29:42,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-11-06 22:29:42,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2019-11-06 22:29:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-11-06 22:29:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 588 transitions. [2019-11-06 22:29:42,508 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 588 transitions. Word has length 111 [2019-11-06 22:29:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:42,509 INFO L462 AbstractCegarLoop]: Abstraction has 419 states and 588 transitions. [2019-11-06 22:29:42,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:29:42,509 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 588 transitions. [2019-11-06 22:29:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 22:29:42,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:42,513 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:29:42,513 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:42,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:42,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1277669234, now seen corresponding path program 1 times [2019-11-06 22:29:42,514 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:42,514 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050706602] [2019-11-06 22:29:42,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:42,723 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050706602] [2019-11-06 22:29:42,723 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724320368] [2019-11-06 22:29:42,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:42,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:29:42,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:29:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:42,930 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:29:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:43,011 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:29:43,012 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2019-11-06 22:29:43,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064988186] [2019-11-06 22:29:43,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:29:43,013 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:43,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:29:43,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:29:43,014 INFO L87 Difference]: Start difference. First operand 419 states and 588 transitions. Second operand 4 states. [2019-11-06 22:29:43,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:43,890 INFO L93 Difference]: Finished difference Result 1513 states and 2201 transitions. [2019-11-06 22:29:43,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:29:43,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2019-11-06 22:29:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:43,898 INFO L225 Difference]: With dead ends: 1513 [2019-11-06 22:29:43,898 INFO L226 Difference]: Without dead ends: 1100 [2019-11-06 22:29:43,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:29:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2019-11-06 22:29:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 828. [2019-11-06 22:29:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2019-11-06 22:29:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1095 transitions. [2019-11-06 22:29:43,957 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1095 transitions. Word has length 112 [2019-11-06 22:29:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:43,957 INFO L462 AbstractCegarLoop]: Abstraction has 828 states and 1095 transitions. [2019-11-06 22:29:43,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:29:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1095 transitions. [2019-11-06 22:29:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-06 22:29:43,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:43,966 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 22:29:44,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:44,170 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:44,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:44,170 INFO L82 PathProgramCache]: Analyzing trace with hash -346016022, now seen corresponding path program 1 times [2019-11-06 22:29:44,171 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:44,171 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135610652] [2019-11-06 22:29:44,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:44,316 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135610652] [2019-11-06 22:29:44,316 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:44,317 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:29:44,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704597392] [2019-11-06 22:29:44,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:29:44,318 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:44,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:29:44,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:29:44,318 INFO L87 Difference]: Start difference. First operand 828 states and 1095 transitions. Second operand 6 states. [2019-11-06 22:29:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:45,026 INFO L93 Difference]: Finished difference Result 1958 states and 2637 transitions. [2019-11-06 22:29:45,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:29:45,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2019-11-06 22:29:45,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:45,037 INFO L225 Difference]: With dead ends: 1958 [2019-11-06 22:29:45,037 INFO L226 Difference]: Without dead ends: 1136 [2019-11-06 22:29:45,039 INFO L630 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 [2019-11-06 22:29:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2019-11-06 22:29:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 850. [2019-11-06 22:29:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-11-06 22:29:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1044 transitions. [2019-11-06 22:29:45,089 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1044 transitions. Word has length 126 [2019-11-06 22:29:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:45,090 INFO L462 AbstractCegarLoop]: Abstraction has 850 states and 1044 transitions. [2019-11-06 22:29:45,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:29:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1044 transitions. [2019-11-06 22:29:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-06 22:29:45,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:45,095 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:45,095 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:45,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1148353872, now seen corresponding path program 1 times [2019-11-06 22:29:45,097 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:45,097 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170266405] [2019-11-06 22:29:45,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:45,282 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170266405] [2019-11-06 22:29:45,282 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:29:45,283 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:29:45,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715904069] [2019-11-06 22:29:45,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:45,284 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:45,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:45,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:45,285 INFO L87 Difference]: Start difference. First operand 850 states and 1044 transitions. Second operand 3 states. [2019-11-06 22:29:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:45,903 INFO L93 Difference]: Finished difference Result 2381 states and 2989 transitions. [2019-11-06 22:29:45,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:29:45,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-11-06 22:29:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:45,913 INFO L225 Difference]: With dead ends: 2381 [2019-11-06 22:29:45,914 INFO L226 Difference]: Without dead ends: 1537 [2019-11-06 22:29:45,916 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:29:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2019-11-06 22:29:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1398. [2019-11-06 22:29:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-11-06 22:29:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1735 transitions. [2019-11-06 22:29:45,960 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1735 transitions. Word has length 127 [2019-11-06 22:29:45,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:45,961 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 1735 transitions. [2019-11-06 22:29:45,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:29:45,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1735 transitions. [2019-11-06 22:29:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-06 22:29:45,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:29:45,966 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:29:45,967 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:29:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:29:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash 257579638, now seen corresponding path program 1 times [2019-11-06 22:29:45,967 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:29:45,968 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408221258] [2019-11-06 22:29:45,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:29:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:46,203 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408221258] [2019-11-06 22:29:46,203 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65161666] [2019-11-06 22:29:46,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:29:46,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 22:29:46,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:29:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:46,331 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:29:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:29:46,379 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:29:46,379 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2019-11-06 22:29:46,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206846159] [2019-11-06 22:29:46,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:29:46,380 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:29:46,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:29:46,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:29:46,381 INFO L87 Difference]: Start difference. First operand 1398 states and 1735 transitions. Second operand 3 states. [2019-11-06 22:29:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:29:46,905 INFO L93 Difference]: Finished difference Result 4021 states and 5068 transitions. [2019-11-06 22:29:46,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:29:46,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-11-06 22:29:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:29:46,906 INFO L225 Difference]: With dead ends: 4021 [2019-11-06 22:29:46,906 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:29:46,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:29:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:29:46,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:29:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:29:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:29:46,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2019-11-06 22:29:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:29:46,915 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:29:46,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:29:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:29:46,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:29:47,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:29:47,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:29:47,630 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2019-11-06 22:29:47,744 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,745 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-06 22:29:47,746 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,747 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-06 22:29:47,748 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-06 22:29:47,749 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,750 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-06 22:29:47,751 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-06 22:29:47,752 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-06 22:29:47,753 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,754 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-06 22:29:47,755 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,756 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-06 22:29:47,757 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,758 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-06 22:29:47,759 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,760 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-06 22:29:47,761 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse3 (= ~a8~0 |old(~a8~0)|))) (let ((.cse5 (and .cse4 .cse3)) (.cse2 (or (= 6 |old(~a16~0)|) (not (< |old(~a8~0)| 15)))) (.cse1 (= 1 |old(~a20~0)|)) (.cse0 (not (= ~a20~0 1)))) (and (or .cse0 (= 13 |old(~a8~0)|) .cse1) (or .cse2 (and .cse3 .cse4)) (or .cse5 .cse1) (or (and .cse4 .cse3 (<= ~a17~0 0)) (not (<= |old(~a17~0)| 0))) (or (= 4 |old(~a16~0)|) .cse5) (or .cse2 .cse1 .cse0)))) [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,762 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-06 22:29:47,763 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-06 22:29:47,764 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-06 22:29:47,765 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-06 22:29:47,766 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-06 22:29:47,767 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-06 22:29:47,768 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:29:47,769 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a8~0 13)) (not (= ~a16~0 4))) [2019-11-06 22:29:47,769 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:29:47,769 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:29:47,769 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 4 |old(~a16~0)|) (= 13 |old(~a8~0)|) (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2019-11-06 22:29:47,769 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:29:47,769 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= ~a16~0 4)) (<= ~a17~0 0) (= 4 |old(~a16~0)|) (< ~a8~0 15) (= 13 |old(~a8~0)|) (not (= ~a20~0 1))) [2019-11-06 22:29:47,769 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-11-06 22:29:47,770 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-06 22:29:47,770 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= ~a16~0 4)) (<= ~a17~0 0) (= 4 |old(~a16~0)|) (< ~a8~0 15) (= 13 |old(~a8~0)|) (not (= ~a20~0 1))) [2019-11-06 22:29:47,770 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-11-06 22:29:47,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:29:47 BoogieIcfgContainer [2019-11-06 22:29:47,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:29:47,792 INFO L168 Benchmark]: Toolchain (without parser) took 9777.67 ms. Allocated memory was 145.8 MB in the beginning and 358.6 MB in the end (delta: 212.9 MB). Free memory was 101.3 MB in the beginning and 153.2 MB in the end (delta: -51.9 MB). Peak memory consumption was 161.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,792 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.79 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,795 INFO L168 Benchmark]: Boogie Preprocessor took 99.64 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,796 INFO L168 Benchmark]: RCFGBuilder took 1122.63 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 165.4 MB in the beginning and 179.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,800 INFO L168 Benchmark]: TraceAbstraction took 7798.04 ms. Allocated memory was 237.5 MB in the beginning and 358.6 MB in the end (delta: 121.1 MB). Free memory was 179.3 MB in the beginning and 153.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:29:47,809 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 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.79 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.64 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1122.63 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 165.4 MB in the beginning and 179.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7798.04 ms. Allocated memory was 237.5 MB in the beginning and 358.6 MB in the end (delta: 121.1 MB). Free memory was 179.3 MB in the beginning and 153.2 MB in the end (delta: 26.1 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((6 == \old(a16) || !(a16 == 4)) || a17 <= 0) || 4 == \old(a16)) || a8 < 15) || 13 == \old(a8)) || !(a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Result: SAFE, OverallTime: 7.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, HoareTripleCheckerStatistics: 732 SDtfs, 1208 SDslu, 139 SDs, 0 SdLazy, 2728 SolverSat, 546 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 598 GetRequests, 565 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1398occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 709 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 53 PreInvPairs, 91 NumberOfFragments, 167 HoareAnnotationTreeSize, 53 FomulaSimplifications, 2476 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1304 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1017 NumberOfCodeBlocks, 1017 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1283 ConstructedInterpolants, 0 QuantifiedInterpolants, 517427 SizeOfPredicates, 4 NumberOfNonLiveVariables, 746 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 246/256 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...