/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:29:24,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:29:24,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:29:24,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 05:29:24,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:29:24,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:29:24,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:29:24,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:29:24,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:29:24,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:29:24,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:29:24,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:29:24,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:29:24,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:29:24,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:29:24,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:29:24,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:29:24,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:29:24,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:29:24,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:29:24,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 05:29:24,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:29:24,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:29:24,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:29:24,894 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:29:24,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:29:24,894 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:29:24,894 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:29:24,895 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:29:24,895 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:29:24,895 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:29:24,896 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:29:24,896 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:29:24,896 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:29:24,897 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:29:24,897 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:29:24,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:29:24,899 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:29:24,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:29:24,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:29:24,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:29:24,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:29:24,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:29:24,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:29:24,901 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:29:24,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:29:24,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:29:24,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:29:24,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:29:24,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:29:24,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:29:24,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:29:24,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:29:24,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:29:24,904 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:29:24,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:29:24,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:29:24,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:29:24,905 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:29:25,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:29:25,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:29:25,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:29:25,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:29:25,258 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:29:25,258 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2019-11-24 05:29:25,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2052f31/142a17bc92874a29a5e3d91ad517a546/FLAG21fe6abf3 [2019-11-24 05:29:25,844 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:29:25,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2019-11-24 05:29:25,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2052f31/142a17bc92874a29a5e3d91ad517a546/FLAG21fe6abf3 [2019-11-24 05:29:26,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2052f31/142a17bc92874a29a5e3d91ad517a546 [2019-11-24 05:29:26,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:29:26,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:29:26,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:29:26,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:29:26,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:29:26,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790ce9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26, skipping insertion in model container [2019-11-24 05:29:26,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:29:26,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:29:26,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:29:26,735 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:29:26,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:29:26,861 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:29:26,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26 WrapperNode [2019-11-24 05:29:26,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:29:26,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:29:26,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:29:26,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:29:26,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:29:26,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:29:26,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:29:26,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:29:26,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:26,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:27,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:27,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... [2019-11-24 05:29:27,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:29:27,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:29:27,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:29:27,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:29:27,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:29:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:29:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:29:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:29:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:29:29,089 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:29:29,090 INFO L284 CfgBuilder]: Removed 158 assume(true) statements. [2019-11-24 05:29:29,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:29:29 BoogieIcfgContainer [2019-11-24 05:29:29,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:29:29,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:29:29,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:29:29,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:29:29,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:29:26" (1/3) ... [2019-11-24 05:29:29,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53391a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:29:29, skipping insertion in model container [2019-11-24 05:29:29,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:29:26" (2/3) ... [2019-11-24 05:29:29,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53391a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:29:29, skipping insertion in model container [2019-11-24 05:29:29,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:29:29" (3/3) ... [2019-11-24 05:29:29,100 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2019-11-24 05:29:29,109 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:29:29,116 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:29:29,128 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:29:29,152 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:29:29,152 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:29:29,152 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:29:29,152 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:29:29,153 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:29:29,153 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:29:29,153 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:29:29,153 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:29:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-24 05:29:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 05:29:29,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:29:29,176 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:29:29,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:29:29,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:29:29,182 INFO L82 PathProgramCache]: Analyzing trace with hash 287833350, now seen corresponding path program 1 times [2019-11-24 05:29:29,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:29:29,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070604141] [2019-11-24 05:29:29,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:29:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:29:29,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070604141] [2019-11-24 05:29:29,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:29:29,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 05:29:29,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861586129] [2019-11-24 05:29:29,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 05:29:29,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:29:29,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 05:29:29,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-24 05:29:29,638 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-11-24 05:29:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:29:29,772 INFO L93 Difference]: Finished difference Result 65 states and 93 transitions. [2019-11-24 05:29:29,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 05:29:29,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-24 05:29:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:29:29,785 INFO L225 Difference]: With dead ends: 65 [2019-11-24 05:29:29,786 INFO L226 Difference]: Without dead ends: 31 [2019-11-24 05:29:29,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-24 05:29:29,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-24 05:29:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2019-11-24 05:29:29,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 05:29:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-24 05:29:29,829 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 7 [2019-11-24 05:29:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:29:29,830 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-24 05:29:29,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 05:29:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-24 05:29:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 05:29:29,831 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:29:29,831 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:29:29,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:29:29,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:29:29,832 INFO L82 PathProgramCache]: Analyzing trace with hash 2077776807, now seen corresponding path program 1 times [2019-11-24 05:29:29,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:29:29,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911379783] [2019-11-24 05:29:29,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:29:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:29:30,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911379783] [2019-11-24 05:29:30,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709641789] [2019-11-24 05:29:30,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:29:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:29:30,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-24 05:29:30,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:29:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 05:29:30,391 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:29:30,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:29:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 05:29:30,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 05:29:30,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2019-11-24 05:29:30,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246229060] [2019-11-24 05:29:30,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 05:29:30,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:29:30,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 05:29:30,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-24 05:29:30,480 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2019-11-24 05:29:30,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:29:30,554 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-11-24 05:29:30,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 05:29:30,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-24 05:29:30,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:29:30,557 INFO L225 Difference]: With dead ends: 31 [2019-11-24 05:29:30,557 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 05:29:30,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-24 05:29:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 05:29:30,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 05:29:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 05:29:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 05:29:30,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-24 05:29:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:29:30,563 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 05:29:30,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 05:29:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 05:29:30,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 05:29:30,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:29:30,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 05:29:30,823 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,823 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,823 INFO L440 ceAbstractionStarter]: At program point L146(lines 146 159) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L440 ceAbstractionStarter]: At program point L146-1(lines 1 947) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L440 ceAbstractionStarter]: At program point L146-2(lines 146 159) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L440 ceAbstractionStarter]: At program point L146-3(lines 1 947) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L440 ceAbstractionStarter]: At program point L146-4(lines 146 159) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L440 ceAbstractionStarter]: At program point L146-5(lines 1 947) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,824 INFO L444 ceAbstractionStarter]: For program point L150(lines 150 156) no Hoare annotation was computed. [2019-11-24 05:29:30,824 INFO L444 ceAbstractionStarter]: For program point L150-2(lines 150 156) no Hoare annotation was computed. [2019-11-24 05:29:30,826 INFO L444 ceAbstractionStarter]: For program point L150-4(lines 150 156) no Hoare annotation was computed. [2019-11-24 05:29:30,826 INFO L444 ceAbstractionStarter]: For program point L944(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,826 INFO L444 ceAbstractionStarter]: For program point L944-1(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,826 INFO L444 ceAbstractionStarter]: For program point L944-2(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,827 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-24 05:29:30,827 INFO L440 ceAbstractionStarter]: At program point L384(lines 383 430) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,827 INFO L440 ceAbstractionStarter]: At program point L817-2(lines 817 831) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,827 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 05:29:30,827 INFO L440 ceAbstractionStarter]: At program point L821(lines 821 825) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,827 INFO L440 ceAbstractionStarter]: At program point L891(lines 891 898) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~9 ~waterLevel~0)) [2019-11-24 05:29:30,828 INFO L447 ceAbstractionStarter]: At program point L891-1(lines 891 898) the Hoare annotation is: true [2019-11-24 05:29:30,828 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 944) no Hoare annotation was computed. [2019-11-24 05:29:30,828 INFO L440 ceAbstractionStarter]: At program point L431(lines 382 432) the Hoare annotation is: (= ~pumpRunning~0 0) [2019-11-24 05:29:30,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 05:29:30 BoogieIcfgContainer [2019-11-24 05:29:30,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 05:29:30,856 INFO L168 Benchmark]: Toolchain (without parser) took 4704.76 ms. Allocated memory was 135.8 MB in the beginning and 254.3 MB in the end (delta: 118.5 MB). Free memory was 99.3 MB in the beginning and 90.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,858 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.26 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 166.1 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.97 ms. Allocated memory is still 199.2 MB. Free memory was 166.1 MB in the beginning and 162.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,864 INFO L168 Benchmark]: Boogie Preprocessor took 60.90 ms. Allocated memory is still 199.2 MB. Free memory was 162.4 MB in the beginning and 159.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,866 INFO L168 Benchmark]: RCFGBuilder took 2071.48 ms. Allocated memory was 199.2 MB in the beginning and 254.3 MB in the end (delta: 55.1 MB). Free memory was 159.6 MB in the beginning and 221.7 MB in the end (delta: -62.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,871 INFO L168 Benchmark]: TraceAbstraction took 1758.23 ms. Allocated memory is still 254.3 MB. Free memory was 219.7 MB in the beginning and 90.2 MB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2019-11-24 05:29:30,883 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.26 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 99.0 MB in the beginning and 166.1 MB in the end (delta: -67.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 95.97 ms. Allocated memory is still 199.2 MB. Free memory was 166.1 MB in the beginning and 162.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.90 ms. Allocated memory is still 199.2 MB. Free memory was 162.4 MB in the beginning and 159.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2071.48 ms. Allocated memory was 199.2 MB in the beginning and 254.3 MB in the end (delta: 55.1 MB). Free memory was 159.6 MB in the beginning and 221.7 MB in the end (delta: -62.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1758.23 ms. Allocated memory is still 254.3 MB. Free memory was 219.7 MB in the beginning and 90.2 MB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 944]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 944]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 944]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 383]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (1 == waterLevel && pumpRunning == 0) && tmp == waterLevel - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: pumpRunning == 0 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 45 SDslu, 63 SDs, 0 SdLazy, 48 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, 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, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 43 NumberOfFragments, 42 HoareAnnotationTreeSize, 13 FomulaSimplifications, 181 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1242 SizeOfPredicates, 21 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/9 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 correct! Received shutdown request...