/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_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:22:34,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:22:34,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:22:34,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 05:22:34,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:22:34,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:22:34,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:22:34,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:22:34,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:22:34,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:22:34,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:22:34,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:22:34,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:22:34,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:22:34,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:22:34,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:22:34,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:22:34,948 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 05:22:34,969 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:22:34,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:22:34,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:22:34,971 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:22:34,971 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:22:34,971 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:22:34,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:22:34,972 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:22:34,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:22:34,972 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:22:34,973 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:22:34,973 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:22:34,973 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:22:34,974 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:22:34,974 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:22:34,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:22:34,975 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:22:34,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:22:34,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:22:34,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:22:34,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:22:34,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:22:34,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:22:34,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:22:34,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:22:34,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:22:34,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:22:34,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:22:34,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:22:34,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:22:34,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:22:34,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:22:34,980 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:22:35,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:22:35,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:22:35,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:22:35,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:22:35,274 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:22:35,275 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-11-24 05:22:35,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2746f9440/7e5fe60fce224a2da667732c8c3f455c/FLAG32020140d [2019-11-24 05:22:35,880 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:22:35,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2019-11-24 05:22:35,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2746f9440/7e5fe60fce224a2da667732c8c3f455c/FLAG32020140d [2019-11-24 05:22:36,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2746f9440/7e5fe60fce224a2da667732c8c3f455c [2019-11-24 05:22:36,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:22:36,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:22:36,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:22:36,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:22:36,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:22:36,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d837282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36, skipping insertion in model container [2019-11-24 05:22:36,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:22:36,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:22:36,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:22:36,741 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:22:36,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:22:36,845 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:22:36,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36 WrapperNode [2019-11-24 05:22:36,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:22:36,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:22:36,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:22:36,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:22:36,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:22:36,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:22:36,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:22:36,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:22:36,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (1/1) ... [2019-11-24 05:22:36,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:22:36,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:22:36,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:22:36,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:22:36,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (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 05:22:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:22:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:22:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:22:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:22:39,093 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:22:39,094 INFO L284 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-24 05:22:39,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:22:39 BoogieIcfgContainer [2019-11-24 05:22:39,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:22:39,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:22:39,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:22:39,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:22:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:22:36" (1/3) ... [2019-11-24 05:22:39,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca97877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:22:39, skipping insertion in model container [2019-11-24 05:22:39,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:22:36" (2/3) ... [2019-11-24 05:22:39,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca97877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:22:39, skipping insertion in model container [2019-11-24 05:22:39,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:22:39" (3/3) ... [2019-11-24 05:22:39,107 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2019-11-24 05:22:39,116 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:22:39,124 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:22:39,135 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:22:39,161 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:22:39,161 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:22:39,161 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:22:39,161 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:22:39,162 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:22:39,162 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:22:39,162 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:22:39,162 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:22:39,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:22:39,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:22:39,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:22:39,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:22:39,185 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:22:39,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:22:39,191 INFO L82 PathProgramCache]: Analyzing trace with hash -414888610, now seen corresponding path program 1 times [2019-11-24 05:22:39,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:22:39,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417560655] [2019-11-24 05:22:39,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:22:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:22:39,536 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 05:22:39,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417560655] [2019-11-24 05:22:39,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:22:39,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:22:39,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72463309] [2019-11-24 05:22:39,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:22:39,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:22:39,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:22:39,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:22:39,561 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-24 05:22:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:22:39,658 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2019-11-24 05:22:39,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:22:39,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:22:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:22:39,671 INFO L225 Difference]: With dead ends: 68 [2019-11-24 05:22:39,672 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:22:39,675 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 [2019-11-24 05:22:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:22:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:22:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:22:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:22:39,716 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:22:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:22:39,717 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:22:39,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:22:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:22:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:22:39,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:22:39,718 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:22:39,719 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:22:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:22:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash 515927770, now seen corresponding path program 1 times [2019-11-24 05:22:39,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:22:39,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877513392] [2019-11-24 05:22:39,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:22:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:22:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:22:40,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877513392] [2019-11-24 05:22:40,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866419944] [2019-11-24 05:22:40,110 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 05:22:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:22:40,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-24 05:22:40,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:22:40,518 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-11-24 05:22:40,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:22:40,815 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:22:40,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:40,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,152 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 26 [2019-11-24 05:22:41,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-24 05:22:41,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-24 05:22:41,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-24 05:22:41,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:22:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:22:41,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [772305293] [2019-11-24 05:22:41,418 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:22:41,418 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:22:41,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:22:41,430 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:22:41,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:22:51,129 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:22:52,812 WARN L192 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:22:52,933 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:22:53,813 WARN L192 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 669 [2019-11-24 05:22:55,427 WARN L192 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 793 [2019-11-24 05:22:56,391 WARN L192 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:56,962 WARN L192 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:57,373 WARN L192 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:57,747 WARN L192 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:58,221 WARN L192 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:58,598 WARN L192 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-11-24 05:22:58,600 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 05:23:03,387 WARN L192 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 486 DAG size of output: 431 [2019-11-24 05:23:26,230 WARN L192 SmtUtils]: Spent 22.43 s on a formula simplification. DAG size of input: 714 DAG size of output: 530 [2019-11-24 05:23:52,452 WARN L192 SmtUtils]: Spent 25.78 s on a formula simplification. DAG size of input: 793 DAG size of output: 550