/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/loops/terminator_03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:28:13,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:28:13,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:28:13,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:28:13,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:28:13,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:28:13,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:28:13,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:28:13,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:28:13,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:28:13,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:28:13,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:28:13,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:28:13,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:28:13,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:28:13,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:28:13,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:28:13,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:28:13,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:28:13,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:28:13,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:28:13,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:28:13,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:28:13,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:28:13,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:28:13,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:28:13,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:28:13,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:28:13,785 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 04:28:13,819 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:28:13,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:28:13,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:28:13,821 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:28:13,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:28:13,821 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:28:13,821 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:28:13,821 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:28:13,822 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:28:13,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:28:13,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:28:13,822 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:28:13,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:28:13,823 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:28:13,823 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:28:13,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:28:13,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:28:13,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:28:13,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:28:13,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:28:13,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:28:13,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:28:13,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:28:13,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:28:13,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:28:13,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:28:13,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:28:13,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:28:13,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:28:13,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:28:13,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:28:13,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:28:13,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:28:13,828 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:28:13,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:28:13,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:28:13,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:28:13,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:28:14,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:28:14,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:28:14,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:28:14,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:28:14,170 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:28:14,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-1.c [2019-11-24 04:28:14,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56682a56/ef40342a2d2045baa440050b4966fa07/FLAG32bc7af73 [2019-11-24 04:28:14,605 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:28:14,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-1.c [2019-11-24 04:28:14,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56682a56/ef40342a2d2045baa440050b4966fa07/FLAG32bc7af73 [2019-11-24 04:28:14,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56682a56/ef40342a2d2045baa440050b4966fa07 [2019-11-24 04:28:14,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:28:14,997 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:28:14,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:14,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:28:15,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:28:15,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:14" (1/1) ... [2019-11-24 04:28:15,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517e68bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15, skipping insertion in model container [2019-11-24 04:28:15,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:14" (1/1) ... [2019-11-24 04:28:15,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:28:15,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:28:15,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:15,227 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:28:15,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:15,267 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:28:15,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15 WrapperNode [2019-11-24 04:28:15,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:15,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:15,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:28:15,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:28:15,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:15,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:28:15,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:28:15,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:28:15,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (1/1) ... [2019-11-24 04:28:15,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:28:15,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:28:15,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:28:15,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:28:15,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (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 04:28:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:28:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:28:15,760 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:28:15,761 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 04:28:15,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:15 BoogieIcfgContainer [2019-11-24 04:28:15,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:28:15,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:28:15,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:28:15,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:28:15,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:28:14" (1/3) ... [2019-11-24 04:28:15,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91c5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:15, skipping insertion in model container [2019-11-24 04:28:15,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:15" (2/3) ... [2019-11-24 04:28:15,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91c5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:15, skipping insertion in model container [2019-11-24 04:28:15,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:15" (3/3) ... [2019-11-24 04:28:15,771 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2019-11-24 04:28:15,785 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:28:15,795 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:28:15,807 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:28:15,839 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:28:15,839 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:28:15,840 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:28:15,840 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:28:15,840 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:28:15,840 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:28:15,840 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:28:15,840 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:28:15,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-24 04:28:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-24 04:28:15,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:15,867 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-24 04:28:15,867 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:15,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:15,874 INFO L82 PathProgramCache]: Analyzing trace with hash 30108868, now seen corresponding path program 1 times [2019-11-24 04:28:15,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:15,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679908442] [2019-11-24 04:28:15,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:16,080 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 04:28:16,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679908442] [2019-11-24 04:28:16,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:28:16,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:28:16,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374008398] [2019-11-24 04:28:16,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:28:16,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:16,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:28:16,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:28:16,101 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-24 04:28:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:16,164 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-24 04:28:16,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:28:16,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-24 04:28:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:16,177 INFO L225 Difference]: With dead ends: 17 [2019-11-24 04:28:16,177 INFO L226 Difference]: Without dead ends: 7 [2019-11-24 04:28:16,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 04:28:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-24 04:28:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-24 04:28:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-24 04:28:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-24 04:28:16,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-24 04:28:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:16,210 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-24 04:28:16,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:28:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-24 04:28:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 04:28:16,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:16,211 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 04:28:16,211 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:16,212 INFO L82 PathProgramCache]: Analyzing trace with hash 920949141, now seen corresponding path program 1 times [2019-11-24 04:28:16,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:16,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414555458] [2019-11-24 04:28:16,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 04:28:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-24 04:28:16,251 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-24 04:28:16,251 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-24 04:28:16,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:28:16 BoogieIcfgContainer [2019-11-24 04:28:16,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:28:16,270 INFO L168 Benchmark]: Toolchain (without parser) took 1272.49 ms. Allocated memory was 147.3 MB in the beginning and 206.6 MB in the end (delta: 59.2 MB). Free memory was 105.4 MB in the beginning and 148.7 MB in the end (delta: -43.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,271 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 04:28:16,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.36 ms. Allocated memory is still 147.3 MB. Free memory was 105.4 MB in the beginning and 96.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,273 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.26 ms. Allocated memory is still 147.3 MB. Free memory was 96.0 MB in the beginning and 94.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,274 INFO L168 Benchmark]: Boogie Preprocessor took 151.90 ms. Allocated memory was 147.3 MB in the beginning and 206.6 MB in the end (delta: 59.2 MB). Free memory was 94.6 MB in the beginning and 185.1 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,275 INFO L168 Benchmark]: RCFGBuilder took 305.05 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 173.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,276 INFO L168 Benchmark]: TraceAbstraction took 504.77 ms. Allocated memory is still 206.6 MB. Free memory was 172.8 MB in the beginning and 148.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:28:16,281 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.36 ms. Allocated memory is still 147.3 MB. Free memory was 105.4 MB in the beginning and 96.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.26 ms. Allocated memory is still 147.3 MB. Free memory was 96.0 MB in the beginning and 94.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.90 ms. Allocated memory was 147.3 MB in the beginning and 206.6 MB in the end (delta: 59.2 MB). Free memory was 94.6 MB in the beginning and 185.1 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 305.05 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 173.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 504.77 ms. Allocated memory is still 206.6 MB. Free memory was 172.8 MB in the beginning and 148.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L14] int y=__VERIFIER_nondet_int(); [L16] COND TRUE y>0 [L18] COND FALSE !(x<100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 6 SDslu, 11 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...