/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:32:26,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:32:26,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:32:26,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:32:26,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:32:26,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:32:26,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:32:26,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:32:26,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:32:26,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:32:26,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:32:26,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:32:26,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:32:26,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:32:26,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:32:26,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:32:26,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:32:26,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:32:26,860 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:32:26,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:32:26,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:32:26,862 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:32:26,863 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:32:26,863 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:32:26,864 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:32:26,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:32:26,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:32:26,867 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:32:26,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:32:26,868 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:32:26,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:32:26,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:32:26,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:32:26,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:32:26,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:32:26,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:32:26,869 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:32:26,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:32:26,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:32:26,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:32:26,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:32:26,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:32:26,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:32:26,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:32:26,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:32:26,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:32:26,871 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:32:26,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:32:26,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:32:26,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:32:26,872 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:32:27,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:32:27,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:32:27,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:32:27,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:32:27,184 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:32:27,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2019-11-23 23:32:27,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e71d9c69/583a84bd735a43df9dd72fd6bba2b422/FLAGea374904b [2019-11-23 23:32:27,849 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:32:27,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2019-11-23 23:32:27,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e71d9c69/583a84bd735a43df9dd72fd6bba2b422/FLAGea374904b [2019-11-23 23:32:28,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e71d9c69/583a84bd735a43df9dd72fd6bba2b422 [2019-11-23 23:32:28,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:32:28,103 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:32:28,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:28,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:32:28,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:32:28,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca29688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28, skipping insertion in model container [2019-11-23 23:32:28,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:32:28,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:32:28,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:28,685 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:32:28,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:28,804 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:32:28,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28 WrapperNode [2019-11-23 23:32:28,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:28,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:28,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:32:28,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:32:28,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:28,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:32:28,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:32:28,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:32:28,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (1/1) ... [2019-11-23 23:32:28,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:32:28,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:32:28,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:32:28,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:32:28,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (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 [2019-11-23 23:32:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:32:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:32:31,281 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:32:31,282 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:32:31,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:31 BoogieIcfgContainer [2019-11-23 23:32:31,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:32:31,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:32:31,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:32:31,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:32:31,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:32:28" (1/3) ... [2019-11-23 23:32:31,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353f78ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:31, skipping insertion in model container [2019-11-23 23:32:31,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:28" (2/3) ... [2019-11-23 23:32:31,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353f78ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:31, skipping insertion in model container [2019-11-23 23:32:31,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:31" (3/3) ... [2019-11-23 23:32:31,293 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2019-11-23 23:32:31,303 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:32:31,311 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:32:31,323 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:32:31,360 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:32:31,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:32:31,361 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:32:31,361 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:32:31,361 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:32:31,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:32:31,362 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:32:31,362 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:32:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-23 23:32:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-23 23:32:31,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:31,392 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] [2019-11-23 23:32:31,392 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1497197738, now seen corresponding path program 1 times [2019-11-23 23:32:31,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:31,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864536459] [2019-11-23 23:32:31,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:31,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864536459] [2019-11-23 23:32:31,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:31,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:31,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388696673] [2019-11-23 23:32:31,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:31,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:31,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:31,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:31,840 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-23 23:32:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:32,619 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-23 23:32:32,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:32,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-23 23:32:32,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:32,636 INFO L225 Difference]: With dead ends: 333 [2019-11-23 23:32:32,637 INFO L226 Difference]: Without dead ends: 243 [2019-11-23 23:32:32,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-23 23:32:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2019-11-23 23:32:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-23 23:32:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 453 transitions. [2019-11-23 23:32:32,704 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 453 transitions. Word has length 80 [2019-11-23 23:32:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:32,705 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 453 transitions. [2019-11-23 23:32:32,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 453 transitions. [2019-11-23 23:32:32,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-23 23:32:32,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:32,711 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-23 23:32:32,711 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:32,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1174948617, now seen corresponding path program 1 times [2019-11-23 23:32:32,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:32,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529164516] [2019-11-23 23:32:32,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:32,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529164516] [2019-11-23 23:32:32,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:32,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:32,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850096700] [2019-11-23 23:32:32,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:32,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:32,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:32,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:32,792 INFO L87 Difference]: Start difference. First operand 243 states and 453 transitions. Second operand 4 states. [2019-11-23 23:32:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:33,370 INFO L93 Difference]: Finished difference Result 805 states and 1497 transitions. [2019-11-23 23:32:33,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:33,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-11-23 23:32:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:33,376 INFO L225 Difference]: With dead ends: 805 [2019-11-23 23:32:33,376 INFO L226 Difference]: Without dead ends: 563 [2019-11-23 23:32:33,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-11-23 23:32:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 403. [2019-11-23 23:32:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-11-23 23:32:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 718 transitions. [2019-11-23 23:32:33,423 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 718 transitions. Word has length 98 [2019-11-23 23:32:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:33,424 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 718 transitions. [2019-11-23 23:32:33,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 718 transitions. [2019-11-23 23:32:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-23 23:32:33,428 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:33,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:32:33,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:33,429 INFO L82 PathProgramCache]: Analyzing trace with hash 944966547, now seen corresponding path program 1 times [2019-11-23 23:32:33,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:33,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734201127] [2019-11-23 23:32:33,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:33,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734201127] [2019-11-23 23:32:33,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:33,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:32:33,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149263245] [2019-11-23 23:32:33,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:33,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:33,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:33,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:33,519 INFO L87 Difference]: Start difference. First operand 403 states and 718 transitions. Second operand 3 states. [2019-11-23 23:32:33,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:33,971 INFO L93 Difference]: Finished difference Result 1125 states and 1996 transitions. [2019-11-23 23:32:33,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:33,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-11-23 23:32:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:33,977 INFO L225 Difference]: With dead ends: 1125 [2019-11-23 23:32:33,977 INFO L226 Difference]: Without dead ends: 723 [2019-11-23 23:32:33,979 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:33,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-11-23 23:32:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2019-11-23 23:32:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-11-23 23:32:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1164 transitions. [2019-11-23 23:32:34,007 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1164 transitions. Word has length 102 [2019-11-23 23:32:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:34,007 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 1164 transitions. [2019-11-23 23:32:34,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1164 transitions. [2019-11-23 23:32:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-23 23:32:34,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:34,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:32:34,013 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:34,013 INFO L82 PathProgramCache]: Analyzing trace with hash 544650985, now seen corresponding path program 1 times [2019-11-23 23:32:34,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:34,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911957034] [2019-11-23 23:32:34,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:34,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911957034] [2019-11-23 23:32:34,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:34,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:34,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295323346] [2019-11-23 23:32:34,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:34,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:34,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:34,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:34,087 INFO L87 Difference]: Start difference. First operand 723 states and 1164 transitions. Second operand 4 states. [2019-11-23 23:32:34,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:34,822 INFO L93 Difference]: Finished difference Result 2165 states and 3408 transitions. [2019-11-23 23:32:34,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:34,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-11-23 23:32:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:34,830 INFO L225 Difference]: With dead ends: 2165 [2019-11-23 23:32:34,830 INFO L226 Difference]: Without dead ends: 1443 [2019-11-23 23:32:34,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-11-23 23:32:34,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1203. [2019-11-23 23:32:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2019-11-23 23:32:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1714 transitions. [2019-11-23 23:32:34,864 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1714 transitions. Word has length 111 [2019-11-23 23:32:34,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:34,865 INFO L462 AbstractCegarLoop]: Abstraction has 1203 states and 1714 transitions. [2019-11-23 23:32:34,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1714 transitions. [2019-11-23 23:32:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-11-23 23:32:34,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:34,869 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-11-23 23:32:34,869 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1332899568, now seen corresponding path program 1 times [2019-11-23 23:32:34,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:34,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977573119] [2019-11-23 23:32:34,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-23 23:32:34,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977573119] [2019-11-23 23:32:34,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:34,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:32:34,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242153077] [2019-11-23 23:32:34,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:34,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:34,951 INFO L87 Difference]: Start difference. First operand 1203 states and 1714 transitions. Second operand 4 states. [2019-11-23 23:32:35,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:35,589 INFO L93 Difference]: Finished difference Result 2885 states and 4133 transitions. [2019-11-23 23:32:35,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:35,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-11-23 23:32:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:35,599 INFO L225 Difference]: With dead ends: 2885 [2019-11-23 23:32:35,599 INFO L226 Difference]: Without dead ends: 1683 [2019-11-23 23:32:35,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-11-23 23:32:35,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1123. [2019-11-23 23:32:35,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2019-11-23 23:32:35,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1478 transitions. [2019-11-23 23:32:35,631 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1478 transitions. Word has length 118 [2019-11-23 23:32:35,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:35,632 INFO L462 AbstractCegarLoop]: Abstraction has 1123 states and 1478 transitions. [2019-11-23 23:32:35,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:35,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1478 transitions. [2019-11-23 23:32:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-23 23:32:35,635 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:35,635 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-11-23 23:32:35,636 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:35,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:35,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1420041166, now seen corresponding path program 1 times [2019-11-23 23:32:35,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:35,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900794530] [2019-11-23 23:32:35,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-23 23:32:35,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900794530] [2019-11-23 23:32:35,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:35,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:35,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656705450] [2019-11-23 23:32:35,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:35,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:35,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:35,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:35,731 INFO L87 Difference]: Start difference. First operand 1123 states and 1478 transitions. Second operand 3 states. [2019-11-23 23:32:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:36,119 INFO L93 Difference]: Finished difference Result 2405 states and 3125 transitions. [2019-11-23 23:32:36,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:36,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-11-23 23:32:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:36,126 INFO L225 Difference]: With dead ends: 2405 [2019-11-23 23:32:36,126 INFO L226 Difference]: Without dead ends: 1203 [2019-11-23 23:32:36,128 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2019-11-23 23:32:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1043. [2019-11-23 23:32:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-11-23 23:32:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1309 transitions. [2019-11-23 23:32:36,151 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1309 transitions. Word has length 131 [2019-11-23 23:32:36,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:36,152 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 1309 transitions. [2019-11-23 23:32:36,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:36,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1309 transitions. [2019-11-23 23:32:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-23 23:32:36,155 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:36,155 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 23:32:36,155 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:36,156 INFO L82 PathProgramCache]: Analyzing trace with hash -405328793, now seen corresponding path program 1 times [2019-11-23 23:32:36,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:36,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846116395] [2019-11-23 23:32:36,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-23 23:32:36,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846116395] [2019-11-23 23:32:36,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:36,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:36,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870164845] [2019-11-23 23:32:36,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:36,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:36,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:36,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:36,217 INFO L87 Difference]: Start difference. First operand 1043 states and 1309 transitions. Second operand 3 states. [2019-11-23 23:32:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:36,546 INFO L93 Difference]: Finished difference Result 2485 states and 3103 transitions. [2019-11-23 23:32:36,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:36,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-11-23 23:32:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:36,551 INFO L225 Difference]: With dead ends: 2485 [2019-11-23 23:32:36,552 INFO L226 Difference]: Without dead ends: 1043 [2019-11-23 23:32:36,554 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-11-23 23:32:36,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 963. [2019-11-23 23:32:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-11-23 23:32:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1138 transitions. [2019-11-23 23:32:36,576 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1138 transitions. Word has length 140 [2019-11-23 23:32:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:36,577 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1138 transitions. [2019-11-23 23:32:36,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1138 transitions. [2019-11-23 23:32:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-23 23:32:36,580 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:36,581 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 23:32:36,581 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:36,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash 30161572, now seen corresponding path program 1 times [2019-11-23 23:32:36,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:36,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482920744] [2019-11-23 23:32:36,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-11-23 23:32:36,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482920744] [2019-11-23 23:32:36,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909711476] [2019-11-23 23:32:36,813 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 [2019-11-23 23:32:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:36,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 23:32:36,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:32:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-23 23:32:37,005 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:32:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-23 23:32:37,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 23:32:37,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 9 [2019-11-23 23:32:37,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617949118] [2019-11-23 23:32:37,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:37,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:37,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:37,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-23 23:32:37,047 INFO L87 Difference]: Start difference. First operand 963 states and 1138 transitions. Second operand 4 states. [2019-11-23 23:32:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:37,406 INFO L93 Difference]: Finished difference Result 1683 states and 1954 transitions. [2019-11-23 23:32:37,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:37,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2019-11-23 23:32:37,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:37,407 INFO L225 Difference]: With dead ends: 1683 [2019-11-23 23:32:37,407 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:32:37,409 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-23 23:32:37,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:32:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:32:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:32:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:32:37,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2019-11-23 23:32:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:37,411 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:32:37,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:32:37,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:32:37,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:32:37,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:32:37,962 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-11-23 23:32:38,234 WARN L192 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-11-23 23:32:38,238 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-23 23:32:38,238 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-23 23:32:38,238 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-23 23:32:38,238 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-23 23:32:38,239 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-23 23:32:38,239 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-23 23:32:38,239 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-23 23:32:38,239 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-23 23:32:38,240 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-23 23:32:38,241 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-23 23:32:38,242 INFO L444 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-23 23:32:38,243 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-23 23:32:38,244 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 460) no Hoare annotation was computed. [2019-11-23 23:32:38,244 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-23 23:32:38,244 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-23 23:32:38,244 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-23 23:32:38,244 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-23 23:32:38,245 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse1 (= ~a25~0 1)) (.cse7 (= ~a19~0 1))) (let ((.cse0 (not .cse7)) (.cse5 (= ~a17~0 8)) (.cse4 (not .cse1)) (.cse3 (not (= ~a28~0 11)))) (let ((.cse6 (<= ~a17~0 7)) (.cse2 (= ~a11~0 1)) (.cse8 (let ((.cse10 (<= ~a19~0 0))) (or (and .cse10 .cse4 .cse5) (and .cse0 .cse4 .cse5 .cse3) (and .cse10 .cse4 .cse3)))) (.cse9 (< ~a17~0 9))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse3) (and .cse6 .cse7 (= ~a28~0 7) .cse2) (and .cse6 .cse4 .cse7 .cse2) (and .cse5 .cse7 .cse1) (and .cse8 .cse2) (and .cse0 .cse9 .cse1 .cse3) (and .cse8 .cse9))))) [2019-11-23 23:32:38,245 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-23 23:32:38,245 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-23 23:32:38,245 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-23 23:32:38,245 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-23 23:32:38,246 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-23 23:32:38,246 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-23 23:32:38,246 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-23 23:32:38,246 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-23 23:32:38,246 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-23 23:32:38,247 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-23 23:32:38,247 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a25~0 1)) (.cse7 (= ~a19~0 1))) (let ((.cse0 (not .cse7)) (.cse5 (= ~a17~0 8)) (.cse4 (not .cse1)) (.cse3 (not (= ~a28~0 11)))) (let ((.cse6 (<= ~a17~0 7)) (.cse2 (= ~a11~0 1)) (.cse8 (let ((.cse10 (<= ~a19~0 0))) (or (and .cse10 .cse4 .cse5) (and .cse0 .cse4 .cse5 .cse3) (and .cse10 .cse4 .cse3)))) (.cse9 (< ~a17~0 9))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse3) (and .cse6 .cse7 (= ~a28~0 7) .cse2) (and .cse6 .cse4 .cse7 .cse2) (and .cse5 .cse7 .cse1) (and .cse8 .cse2) (and .cse0 .cse9 .cse1 .cse3) (and .cse8 .cse9))))) [2019-11-23 23:32:38,247 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-23 23:32:38,247 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-23 23:32:38,247 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-23 23:32:38,247 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:32:38,248 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-23 23:32:38,249 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-23 23:32:38,250 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-23 23:32:38,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:32:38 BoogieIcfgContainer [2019-11-23 23:32:38,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:32:38,277 INFO L168 Benchmark]: Toolchain (without parser) took 10173.85 ms. Allocated memory was 137.4 MB in the beginning and 401.1 MB in the end (delta: 263.7 MB). Free memory was 100.4 MB in the beginning and 331.4 MB in the end (delta: -231.0 MB). Peak memory consumption was 234.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,278 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.08 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 100.2 MB in the beginning and 170.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.30 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,280 INFO L168 Benchmark]: Boogie Preprocessor took 74.25 ms. Allocated memory is still 203.9 MB. Free memory was 165.0 MB in the beginning and 160.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,281 INFO L168 Benchmark]: RCFGBuilder took 2303.03 ms. Allocated memory was 203.9 MB in the beginning and 253.8 MB in the end (delta: 49.8 MB). Free memory was 160.0 MB in the beginning and 202.5 MB in the end (delta: -42.6 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,282 INFO L168 Benchmark]: TraceAbstraction took 6990.63 ms. Allocated memory was 253.8 MB in the beginning and 401.1 MB in the end (delta: 147.3 MB). Free memory was 200.6 MB in the beginning and 331.4 MB in the end (delta: -130.8 MB). Peak memory consumption was 217.9 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:38,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.08 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 100.2 MB in the beginning and 170.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 99.30 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 165.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.25 ms. Allocated memory is still 203.9 MB. Free memory was 165.0 MB in the beginning and 160.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2303.03 ms. Allocated memory was 203.9 MB in the beginning and 253.8 MB in the end (delta: 49.8 MB). Free memory was 160.0 MB in the beginning and 202.5 MB in the end (delta: -42.6 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6990.63 ms. Allocated memory was 253.8 MB in the beginning and 401.1 MB in the end (delta: 147.3 MB). Free memory was 200.6 MB in the beginning and 331.4 MB in the end (delta: -130.8 MB). Peak memory consumption was 217.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 460]: 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: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((!(a19 == 1) && a25 == 1) && a11 == 1) && !(a28 == 11)) || ((!(a25 == 1) && a17 == 8) && !(a28 == 11))) || (((a17 <= 7 && a19 == 1) && a28 == 7) && a11 == 1)) || (((a17 <= 7 && !(a25 == 1)) && a19 == 1) && a11 == 1)) || ((a17 == 8 && a19 == 1) && a25 == 1)) || (((((a19 <= 0 && !(a25 == 1)) && a17 == 8) || (((!(a19 == 1) && !(a25 == 1)) && a17 == 8) && !(a28 == 11))) || ((a19 <= 0 && !(a25 == 1)) && !(a28 == 11))) && a11 == 1)) || (((!(a19 == 1) && a17 < 9) && a25 == 1) && !(a28 == 11))) || (((((a19 <= 0 && !(a25 == 1)) && a17 == 8) || (((!(a19 == 1) && !(a25 == 1)) && a17 == 8) && !(a28 == 11))) || ((a19 <= 0 && !(a25 == 1)) && !(a28 == 11))) && a17 < 9) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((!(a19 == 1) && a25 == 1) && a11 == 1) && !(a28 == 11)) || ((!(a25 == 1) && a17 == 8) && !(a28 == 11))) || (((a17 <= 7 && a19 == 1) && a28 == 7) && a11 == 1)) || (((a17 <= 7 && !(a25 == 1)) && a19 == 1) && a11 == 1)) || ((a17 == 8 && a19 == 1) && a25 == 1)) || (((((a19 <= 0 && !(a25 == 1)) && a17 == 8) || (((!(a19 == 1) && !(a25 == 1)) && a17 == 8) && !(a28 == 11))) || ((a19 <= 0 && !(a25 == 1)) && !(a28 == 11))) && a11 == 1)) || (((!(a19 == 1) && a17 < 9) && a25 == 1) && !(a28 == 11))) || (((((a19 <= 0 && !(a25 == 1)) && a17 == 8) || (((!(a19 == 1) && !(a25 == 1)) && a17 == 8) && !(a28 == 11))) || ((a19 <= 0 && !(a25 == 1)) && !(a28 == 11))) && a17 < 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 6.8s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, HoareTripleCheckerStatistics: 569 SDtfs, 1104 SDslu, 99 SDs, 0 SdLazy, 2689 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 315 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=4, 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, 8 MinimizatonAttempts, 1200 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 337 HoareAnnotationTreeSize, 3 FomulaSimplifications, 860 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 536 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1088 NumberOfCodeBlocks, 1088 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1232 ConstructedInterpolants, 0 QuantifiedInterpolants, 288287 SizeOfPredicates, 0 NumberOfNonLiveVariables, 338 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 752/755 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...