/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/heap-data/min_max.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 00:37:19,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 00:37:19,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 00:37:19,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 00:37:19,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 00:37:19,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 00:37:19,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 00:37:19,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 00:37:19,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 00:37:19,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 00:37:19,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 00:37:19,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 00:37:19,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 00:37:19,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 00:37:19,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 00:37:19,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 00:37:19,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 00:37:19,996 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 00:37:20,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 00:37:20,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 00:37:20,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 00:37:20,012 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 00:37:20,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 00:37:20,013 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 00:37:20,013 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 00:37:20,013 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 00:37:20,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 00:37:20,013 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 00:37:20,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 00:37:20,014 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 00:37:20,014 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 00:37:20,014 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 00:37:20,014 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 00:37:20,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 00:37:20,015 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 00:37:20,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 00:37:20,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 00:37:20,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 00:37:20,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 00:37:20,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 00:37:20,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 00:37:20,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 00:37:20,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 00:37:20,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 00:37:20,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 00:37:20,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 00:37:20,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 00:37:20,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 00:37:20,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 00:37:20,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 00:37:20,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 00:37:20,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 00:37:20,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 00:37:20,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 00:37:20,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 00:37:20,019 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 00:37:20,289 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 00:37:20,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 00:37:20,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 00:37:20,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 00:37:20,316 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 00:37:20,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/min_max.i [2019-11-24 00:37:20,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc20e2cd/0ff0af87ecbc4edfa12c131b7a67f1e4/FLAGa80da3386 [2019-11-24 00:37:20,923 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 00:37:20,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/min_max.i [2019-11-24 00:37:20,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc20e2cd/0ff0af87ecbc4edfa12c131b7a67f1e4/FLAGa80da3386 [2019-11-24 00:37:21,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fc20e2cd/0ff0af87ecbc4edfa12c131b7a67f1e4 [2019-11-24 00:37:21,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 00:37:21,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 00:37:21,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 00:37:21,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 00:37:21,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 00:37:21,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d567e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21, skipping insertion in model container [2019-11-24 00:37:21,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 00:37:21,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 00:37:21,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:37:21,683 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 00:37:21,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:37:21,788 INFO L208 MainTranslator]: Completed translation [2019-11-24 00:37:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21 WrapperNode [2019-11-24 00:37:21,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 00:37:21,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 00:37:21,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 00:37:21,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 00:37:21,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 00:37:21,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 00:37:21,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 00:37:21,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 00:37:21,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (1/1) ... [2019-11-24 00:37:21,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 00:37:21,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 00:37:21,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 00:37:21,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 00:37:21,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (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 00:37:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 00:37:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 00:37:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 00:37:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 00:37:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 00:37:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 00:37:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 00:37:22,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 00:37:22,383 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-24 00:37:22,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:37:22 BoogieIcfgContainer [2019-11-24 00:37:22,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 00:37:22,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 00:37:22,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 00:37:22,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 00:37:22,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:37:21" (1/3) ... [2019-11-24 00:37:22,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657f3e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:37:22, skipping insertion in model container [2019-11-24 00:37:22,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:37:21" (2/3) ... [2019-11-24 00:37:22,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657f3e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:37:22, skipping insertion in model container [2019-11-24 00:37:22,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:37:22" (3/3) ... [2019-11-24 00:37:22,392 INFO L109 eAbstractionObserver]: Analyzing ICFG min_max.i [2019-11-24 00:37:22,402 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 00:37:22,411 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 00:37:22,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 00:37:22,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 00:37:22,443 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 00:37:22,443 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 00:37:22,443 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 00:37:22,444 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 00:37:22,444 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 00:37:22,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 00:37:22,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 00:37:22,457 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-24 00:37:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 00:37:22,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:22,464 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 00:37:22,465 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:22,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1606619416, now seen corresponding path program 1 times [2019-11-24 00:37:22,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:22,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578577077] [2019-11-24 00:37:22,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:22,596 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 00:37:22,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578577077] [2019-11-24 00:37:22,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:22,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 00:37:22,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694751822] [2019-11-24 00:37:22,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 00:37:22,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:22,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 00:37:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 00:37:22,624 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-24 00:37:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:22,644 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2019-11-24 00:37:22,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 00:37:22,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-24 00:37:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:22,657 INFO L225 Difference]: With dead ends: 25 [2019-11-24 00:37:22,657 INFO L226 Difference]: Without dead ends: 13 [2019-11-24 00:37:22,661 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 00:37:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-24 00:37:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-24 00:37:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-24 00:37:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-11-24 00:37:22,700 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2019-11-24 00:37:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:22,701 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-11-24 00:37:22,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 00:37:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-24 00:37:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 00:37:22,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:22,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:22,702 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:22,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1144004746, now seen corresponding path program 1 times [2019-11-24 00:37:22,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:22,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776431196] [2019-11-24 00:37:22,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:22,838 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 00:37:22,838 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776431196] [2019-11-24 00:37:22,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:22,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 00:37:22,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093613756] [2019-11-24 00:37:22,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 00:37:22,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:22,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 00:37:22,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 00:37:22,842 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 4 states. [2019-11-24 00:37:22,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:22,898 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-11-24 00:37:22,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 00:37:22,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-24 00:37:22,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:22,899 INFO L225 Difference]: With dead ends: 26 [2019-11-24 00:37:22,900 INFO L226 Difference]: Without dead ends: 15 [2019-11-24 00:37:22,901 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 00:37:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-24 00:37:22,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-24 00:37:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-24 00:37:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-24 00:37:22,905 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2019-11-24 00:37:22,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:22,906 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-24 00:37:22,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 00:37:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-24 00:37:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 00:37:22,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:22,907 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:22,907 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:22,908 INFO L82 PathProgramCache]: Analyzing trace with hash 931486505, now seen corresponding path program 1 times [2019-11-24 00:37:22,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:22,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200264000] [2019-11-24 00:37:22,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:23,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200264000] [2019-11-24 00:37:23,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:23,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 00:37:23,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027661393] [2019-11-24 00:37:23,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 00:37:23,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:23,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 00:37:23,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-24 00:37:23,123 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-11-24 00:37:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:23,230 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-24 00:37:23,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 00:37:23,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-24 00:37:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:23,231 INFO L225 Difference]: With dead ends: 24 [2019-11-24 00:37:23,232 INFO L226 Difference]: Without dead ends: 22 [2019-11-24 00:37:23,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-24 00:37:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-24 00:37:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2019-11-24 00:37:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-24 00:37:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-24 00:37:23,238 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2019-11-24 00:37:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:23,251 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-24 00:37:23,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 00:37:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-24 00:37:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-24 00:37:23,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:23,252 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:23,252 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:23,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1805459307, now seen corresponding path program 1 times [2019-11-24 00:37:23,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:23,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699509667] [2019-11-24 00:37:23,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:23,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699509667] [2019-11-24 00:37:23,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:37:23,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-24 00:37:23,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324657945] [2019-11-24 00:37:23,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 00:37:23,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:37:23,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 00:37:23,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-24 00:37:23,446 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2019-11-24 00:37:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:37:23,614 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-11-24 00:37:23,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-24 00:37:23,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-11-24 00:37:23,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:37:23,616 INFO L225 Difference]: With dead ends: 22 [2019-11-24 00:37:23,616 INFO L226 Difference]: Without dead ends: 20 [2019-11-24 00:37:23,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-24 00:37:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-24 00:37:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-24 00:37:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-24 00:37:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-24 00:37:23,625 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2019-11-24 00:37:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:37:23,626 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-24 00:37:23,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 00:37:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-24 00:37:23,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 00:37:23,627 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:37:23,628 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:37:23,628 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:37:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:37:23,629 INFO L82 PathProgramCache]: Analyzing trace with hash 566647899, now seen corresponding path program 1 times [2019-11-24 00:37:23,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:37:23,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833532868] [2019-11-24 00:37:23,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:37:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:23,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833532868] [2019-11-24 00:37:23,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699637616] [2019-11-24 00:37:23,811 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 00:37:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:37:23,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-24 00:37:23,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 00:37:23,975 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-24 00:37:23,976 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,987 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,991 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-24 00:37:23,992 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,997 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:23,998 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 00:37:23,998 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-11-24 00:37:24,015 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-24 00:37:24,016 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:24,025 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:24,029 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-24 00:37:24,030 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:37:24,034 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:37:24,034 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 00:37:24,035 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-11-24 00:37:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:24,037 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 00:37:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:37:24,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2141654008] [2019-11-24 00:37:24,086 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-24 00:37:24,086 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 00:37:24,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 00:37:24,107 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 00:37:24,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 00:37:24,238 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 00:37:25,133 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 00:37:37,584 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 8 (select |#length| |ULTIMATE.start_main_#t~malloc3.base|)) [2019-11-24 00:37:39,591 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 8 (select |#length| |ULTIMATE.start_main_#t~malloc3.base|)) [2019-11-24 00:37:45,716 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 8 (select |#length| |ULTIMATE.start_main_#t~malloc3.base|)) [2019-11-24 00:37:47,761 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 834 [2019-11-24 00:37:47,828 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 00:37:47,990 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 768 [2019-11-24 00:37:58,438 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 8 (select |#length| |ULTIMATE.start_main_#t~malloc3.base|)) [2019-11-24 00:37:58,573 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 765 [2019-11-24 00:37:58,623 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 00:37:58,757 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 00:38:16,941 WARN L227 Elim1Store]: Array PQE input equivalent to false