/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/Problem11_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 00:01:18,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 00:01:18,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 00:01:18,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 00:01:18,292 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 00:01:18,307 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 00:01:18,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 00:01:18,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 00:01:18,308 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 00:01:18,308 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 00:01:18,308 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 00:01:18,308 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 00:01:18,309 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 00:01:18,309 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 00:01:18,309 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 00:01:18,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 00:01:18,309 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 00:01:18,310 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 00:01:18,310 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 00:01:18,310 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 00:01:18,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 00:01:18,311 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 00:01:18,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 00:01:18,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 00:01:18,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 00:01:18,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 00:01:18,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 00:01:18,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 00:01:18,312 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 00:01:18,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 00:01:18,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 00:01:18,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 00:01:18,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 00:01:18,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 00:01:18,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 00:01:18,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 00:01:18,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 00:01:18,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 00:01:18,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 00:01:18,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 00:01:18,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 00:01:18,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 00:01:18,315 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 00:01:18,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 00:01:18,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 00:01:18,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 00:01:18,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 00:01:18,610 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 00:01:18,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2019-11-24 00:01:18,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197ba7781/9b20e6d05aaa4a678da34fc5aad9c19f/FLAG29dfd3a65 [2019-11-24 00:01:19,348 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 00:01:19,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2019-11-24 00:01:19,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197ba7781/9b20e6d05aaa4a678da34fc5aad9c19f/FLAG29dfd3a65 [2019-11-24 00:01:19,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197ba7781/9b20e6d05aaa4a678da34fc5aad9c19f [2019-11-24 00:01:19,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 00:01:19,559 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 00:01:19,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 00:01:19,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 00:01:19,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 00:01:19,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:19" (1/1) ... [2019-11-24 00:01:19,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c597767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:19, skipping insertion in model container [2019-11-24 00:01:19,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:19" (1/1) ... [2019-11-24 00:01:19,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 00:01:19,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 00:01:20,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:01:20,342 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 00:01:20,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:01:20,569 INFO L208 MainTranslator]: Completed translation [2019-11-24 00:01:20,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20 WrapperNode [2019-11-24 00:01:20,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 00:01:20,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 00:01:20,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 00:01:20,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 00:01:20,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 00:01:20,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 00:01:20,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 00:01:20,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 00:01:20,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (1/1) ... [2019-11-24 00:01:20,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 00:01:20,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 00:01:20,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 00:01:20,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 00:01:20,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (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 00:01:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 00:01:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 00:03:00,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 00:03:00,848 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 00:03:00,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:00 BoogieIcfgContainer [2019-11-24 00:03:00,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 00:03:00,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 00:03:00,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 00:03:00,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 00:03:00,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:01:19" (1/3) ... [2019-11-24 00:03:00,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7579d844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:00, skipping insertion in model container [2019-11-24 00:03:00,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:20" (2/3) ... [2019-11-24 00:03:00,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7579d844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:00, skipping insertion in model container [2019-11-24 00:03:00,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:00" (3/3) ... [2019-11-24 00:03:00,856 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2019-11-24 00:03:00,863 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 00:03:00,869 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 00:03:00,879 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 00:03:00,902 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 00:03:00,902 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 00:03:00,902 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 00:03:00,902 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 00:03:00,902 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 00:03:00,903 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 00:03:00,903 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 00:03:00,903 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 00:03:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-24 00:03:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-24 00:03:00,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:03:00,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-24 00:03:00,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:03:00,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:03:00,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1169215923, now seen corresponding path program 1 times [2019-11-24 00:03:00,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:03:00,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028669738] [2019-11-24 00:03:00,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:03:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:03:01,161 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 00:03:01,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028669738] [2019-11-24 00:03:01,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:03:01,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 00:03:01,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801823428] [2019-11-24 00:03:01,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 00:03:01,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:03:01,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 00:03:01,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-24 00:03:01,189 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-24 00:03:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:03:01,336 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2019-11-24 00:03:01,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 00:03:01,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-24 00:03:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:03:01,348 INFO L225 Difference]: With dead ends: 23 [2019-11-24 00:03:01,348 INFO L226 Difference]: Without dead ends: 11 [2019-11-24 00:03:01,351 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 [2019-11-24 00:03:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-24 00:03:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-24 00:03:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-24 00:03:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-24 00:03:01,387 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-11-24 00:03:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:03:01,387 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-24 00:03:01,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 00:03:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-24 00:03:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 00:03:01,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:03:01,388 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-24 00:03:01,389 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:03:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:03:01,389 INFO L82 PathProgramCache]: Analyzing trace with hash -807490397, now seen corresponding path program 1 times [2019-11-24 00:03:01,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:03:01,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211570442] [2019-11-24 00:03:01,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:03:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:03:02,634 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 00:03:02,634 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211570442] [2019-11-24 00:03:02,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740857288] [2019-11-24 00:03:02,635 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 00:03:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:03:02,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-24 00:03:02,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 00:03:02,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-24 00:03:02,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:02,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:02,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,004 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:03:03,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-11-24 00:03:03,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms