/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/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:31:01,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:31:01,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:31:01,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 05:31:01,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:31:01,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:31:01,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:31:01,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:31:01,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:31:01,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:31:01,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:31:01,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:31:01,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:31:01,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:31:01,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:31:01,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:31:01,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:31:01,799 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 [2019-11-24 05:31:01,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:31:01,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:31:01,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:31:01,829 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:31:01,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:31:01,830 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:31:01,830 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:31:01,830 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:31:01,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:31:01,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:31:01,831 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:31:01,832 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:31:01,832 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:31:01,832 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:31:01,832 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:31:01,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:31:01,834 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:31:01,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:31:01,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:31:01,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:31:01,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:31:01,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:31:01,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:31:01,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:31:01,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:31:01,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:31:01,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:31:01,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:31:01,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:31:01,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:31:01,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:31:01,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:31:01,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:31:02,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:31:02,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:31:02,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:31:02,151 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:31:02,151 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:31:02,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-11-24 05:31:02,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b2d95a9/a919bd265e75407fbe53b90202dc70f0/FLAGf9be52d4f [2019-11-24 05:31:02,683 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:31:02,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-11-24 05:31:02,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b2d95a9/a919bd265e75407fbe53b90202dc70f0/FLAGf9be52d4f [2019-11-24 05:31:03,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b2d95a9/a919bd265e75407fbe53b90202dc70f0 [2019-11-24 05:31:03,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:31:03,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:31:03,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:31:03,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:31:03,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:31:03,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761c7118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03, skipping insertion in model container [2019-11-24 05:31:03,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:31:03,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:31:03,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:31:03,577 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:31:03,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:31:03,702 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:31:03,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03 WrapperNode [2019-11-24 05:31:03,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:31:03,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:31:03,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:31:03,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:31:03,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:31:03,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:31:03,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:31:03,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:31:03,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (1/1) ... [2019-11-24 05:31:03,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:31:03,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:31:03,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:31:03,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:31:03,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (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 [2019-11-24 05:31:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:31:03,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:31:03,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:31:03,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:31:06,501 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:31:06,502 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-24 05:31:06,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:31:06 BoogieIcfgContainer [2019-11-24 05:31:06,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:31:06,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:31:06,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:31:06,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:31:06,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:31:03" (1/3) ... [2019-11-24 05:31:06,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7173b2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:31:06, skipping insertion in model container [2019-11-24 05:31:06,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:31:03" (2/3) ... [2019-11-24 05:31:06,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7173b2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:31:06, skipping insertion in model container [2019-11-24 05:31:06,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:31:06" (3/3) ... [2019-11-24 05:31:06,522 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-11-24 05:31:06,534 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:31:06,542 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:31:06,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:31:06,579 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:31:06,579 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:31:06,579 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:31:06,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:31:06,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:31:06,580 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:31:06,580 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:31:06,581 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:31:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-24 05:31:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:31:06,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:31:06,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:31:06,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:31:06,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:31:06,614 INFO L82 PathProgramCache]: Analyzing trace with hash -2126961838, now seen corresponding path program 1 times [2019-11-24 05:31:06,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:31:06,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131139458] [2019-11-24 05:31:06,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:31:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:07,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:07,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131139458] [2019-11-24 05:31:07,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:31:07,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:31:07,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312421462] [2019-11-24 05:31:07,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 05:31:07,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:31:07,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 05:31:07,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 05:31:07,079 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-11-24 05:31:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:31:07,198 INFO L93 Difference]: Finished difference Result 67 states and 94 transitions. [2019-11-24 05:31:07,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 05:31:07,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-24 05:31:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:31:07,213 INFO L225 Difference]: With dead ends: 67 [2019-11-24 05:31:07,213 INFO L226 Difference]: Without dead ends: 31 [2019-11-24 05:31:07,217 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 05:31:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-24 05:31:07,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2019-11-24 05:31:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 05:31:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-24 05:31:07,258 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 7 [2019-11-24 05:31:07,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:31:07,259 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-24 05:31:07,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 05:31:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-24 05:31:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 05:31:07,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:31:07,260 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:31:07,260 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:31:07,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:31:07,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1952417970, now seen corresponding path program 1 times [2019-11-24 05:31:07,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:31:07,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359098167] [2019-11-24 05:31:07,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:31:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:07,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359098167] [2019-11-24 05:31:07,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231355498] [2019-11-24 05:31:07,571 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 [2019-11-24 05:31:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:31:07,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-24 05:31:07,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:31:08,052 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-11-24 05:31:08,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:08,655 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:31:08,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 05:31:08,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:08,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:31:09,041 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 22 [2019-11-24 05:31:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:31:09,087 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1479774239] [2019-11-24 05:31:09,114 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-24 05:31:09,115 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:31:09,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:31:09,128 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:31:09,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:31:18,735 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-24 05:31:20,437 WARN L192 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:31:20,576 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-24 05:31:21,230 WARN L192 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 599 [2019-11-24 05:31:22,319 WARN L192 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-11-24 05:31:29,581 WARN L192 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 1039 DAG size of output: 1003 [2019-11-24 05:31:47,984 WARN L192 SmtUtils]: Spent 6.70 s on a formula simplification. DAG size of input: 996 DAG size of output: 994