/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/array-industry-pattern/array_single_elem_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:18:51,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:18:51,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:18:51,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:18:51,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:18:51,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:18:51,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:18:51,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:18:51,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:18:51,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:18:51,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:18:51,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:18:51,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:18:51,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:18:51,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:18:51,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:18:51,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:18:51,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:18:52,002 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:18:52,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:18:52,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:18:52,003 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:18:52,004 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:18:52,004 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:18:52,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:18:52,004 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:18:52,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:18:52,005 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:18:52,005 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:18:52,005 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:18:52,005 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:18:52,005 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:18:52,006 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:18:52,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:18:52,006 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:18:52,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:18:52,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:18:52,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:18:52,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:18:52,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:18:52,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:18:52,008 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:18:52,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:18:52,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:18:52,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:18:52,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:18:52,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:18:52,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:18:52,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:18:52,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:18:52,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:18:52,010 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:18:52,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:18:52,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:18:52,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:18:52,011 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:18:52,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:18:52,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:18:52,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:18:52,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:18:52,329 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:18:52,330 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2019-11-23 23:18:52,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dd536ae/0a59ab05a526451ab173e894fbba6cfc/FLAGa033685ef [2019-11-23 23:18:52,878 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:18:52,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2019-11-23 23:18:52,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dd536ae/0a59ab05a526451ab173e894fbba6cfc/FLAGa033685ef [2019-11-23 23:18:53,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25dd536ae/0a59ab05a526451ab173e894fbba6cfc [2019-11-23 23:18:53,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:18:53,235 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:18:53,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:18:53,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:18:53,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:18:53,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e47287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53, skipping insertion in model container [2019-11-23 23:18:53,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:18:53,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:18:53,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:18:53,459 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:18:53,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:18:53,501 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:18:53,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53 WrapperNode [2019-11-23 23:18:53,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:18:53,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:18:53,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:18:53,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:18:53,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:18:53,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:18:53,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:18:53,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:18:53,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... [2019-11-23 23:18:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:18:53,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:18:53,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:18:53,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:18:53,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:18:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:18:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:18:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:18:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:18:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:18:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:18:54,198 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:18:54,198 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-23 23:18:54,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:18:54 BoogieIcfgContainer [2019-11-23 23:18:54,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:18:54,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:18:54,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:18:54,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:18:54,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:18:53" (1/3) ... [2019-11-23 23:18:54,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c5d6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:18:54, skipping insertion in model container [2019-11-23 23:18:54,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:18:53" (2/3) ... [2019-11-23 23:18:54,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c5d6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:18:54, skipping insertion in model container [2019-11-23 23:18:54,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:18:54" (3/3) ... [2019-11-23 23:18:54,209 INFO L109 eAbstractionObserver]: Analyzing ICFG array_single_elem_init.i [2019-11-23 23:18:54,221 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:18:54,232 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:18:54,243 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:18:54,265 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:18:54,265 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:18:54,265 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:18:54,265 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:18:54,265 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:18:54,265 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:18:54,265 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:18:54,265 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:18:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-23 23:18:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 23:18:54,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:18:54,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 23:18:54,285 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:18:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:18:54,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1420597460, now seen corresponding path program 1 times [2019-11-23 23:18:54,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:18:54,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133793083] [2019-11-23 23:18:54,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:18:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:18:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:18:54,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133793083] [2019-11-23 23:18:54,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:18:54,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:18:54,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234252396] [2019-11-23 23:18:54,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:18:54,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:18:54,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:18:54,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:18:54,477 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-11-23 23:18:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:18:54,549 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2019-11-23 23:18:54,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:18:54,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-23 23:18:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:18:54,564 INFO L225 Difference]: With dead ends: 22 [2019-11-23 23:18:54,564 INFO L226 Difference]: Without dead ends: 13 [2019-11-23 23:18:54,571 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:18:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-23 23:18:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-23 23:18:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-23 23:18:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-23 23:18:54,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2019-11-23 23:18:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:18:54,620 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-23 23:18:54,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:18:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-23 23:18:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 23:18:54,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:18:54,622 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:18:54,622 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:18:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:18:54,623 INFO L82 PathProgramCache]: Analyzing trace with hash 525819415, now seen corresponding path program 1 times [2019-11-23 23:18:54,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:18:54,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271514882] [2019-11-23 23:18:54,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:18:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:18:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:18:54,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271514882] [2019-11-23 23:18:54,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015653908] [2019-11-23 23:18:54,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:18:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:18:54,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:18:54,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:18:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 23:18:54,846 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:18:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-23 23:18:54,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1550584241] [2019-11-23 23:18:54,911 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-23 23:18:54,911 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:18:54,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:18:54,951 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:18:54,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:18:55,723 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-11-23 23:18:55,830 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:18:55,949 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:18:55,993 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:18:56,032 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:18:57,316 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 436 [2019-11-23 23:18:57,952 WARN L192 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 431 [2019-11-23 23:18:57,987 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:18:58,218 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 422 [2019-11-23 23:18:59,215 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 417 [2019-11-23 23:18:59,256 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:00,436 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 405 [2019-11-23 23:19:00,464 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:00,598 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2019-11-23 23:19:01,164 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2019-11-23 23:19:01,191 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:01,298 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-11-23 23:19:01,324 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:01,433 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:01,914 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:02,146 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:02,233 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:02,504 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:02,589 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:02,743 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:09,342 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:11,347 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:11,971 WARN L192 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 944 [2019-11-23 23:19:18,062 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:20,070 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:22,079 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 1) [2019-11-23 23:19:28,182 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (mod (+ ULTIMATE.start_main_~i~0 1) 2) 1) [2019-11-23 23:19:30,190 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) (mod (+ ULTIMATE.start_main_~i~0 1) 2)) [2019-11-23 23:19:32,195 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) (mod (+ ULTIMATE.start_main_~i~0 1) 2)) [2019-11-23 23:19:34,205 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 1) [2019-11-23 23:19:34,658 WARN L192 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 934 [2019-11-23 23:19:34,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:19:35,238 WARN L192 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 925 [2019-11-23 23:19:41,309 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ULTIMATE.start_main_~i~0 4))) (= (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 8)) (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 4)))) [2019-11-23 23:19:43,319 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:19:45,327 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:19:47,337 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:49,342 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:19:49,737 WARN L192 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 920 [2019-11-23 23:19:55,809 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ULTIMATE.start_main_~i~0 4))) (= (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 8)) (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 4)))) [2019-11-23 23:19:57,818 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:19:59,822 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:20:01,829 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:20:03,836 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:20:04,243 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 913 [2019-11-23 23:20:10,326 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ULTIMATE.start_main_~i~0 4))) (= (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 12)) (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 8)))) [2019-11-23 23:20:12,333 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ULTIMATE.start_main_~i~0 4))) (= (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 12)) (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 4)))) [2019-11-23 23:20:14,341 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ULTIMATE.start_main_~i~0 4))) (= (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 8)) (+ |ULTIMATE.start_main_~#a~0.offset| .cse0 (- 4)))) [2019-11-23 23:20:16,349 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 12)))) [2019-11-23 23:20:18,355 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 12)))) [2019-11-23 23:20:20,361 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:20:22,369 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 8)))) [2019-11-23 23:20:24,373 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:20:26,379 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:20:26,786 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 906 [2019-11-23 23:20:26,826 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:27,214 WARN L192 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 889 [2019-11-23 23:20:27,256 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:20:27,639 WARN L192 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 872 [2019-11-23 23:20:31,687 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#a~0.base| |ULTIMATE.start_main_~#b~0.base|) [2019-11-23 23:20:35,722 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0) [2019-11-23 23:20:37,725 WARN L176 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0.base|) (+ |ULTIMATE.start_main_~#b~0.offset| (* ULTIMATE.start_main_~i~0 4) (- 4))) 0)