/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_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:24:08,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:24:08,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:24:08,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:24:08,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:24:08,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:24:08,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:24:08,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:24:08,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:24:08,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:24:08,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:24:08,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:24:08,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:24:08,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:24:08,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:24:08,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:24:08,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:24:08,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:24:08,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:24:08,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:24:08,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:24:08,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:24:08,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:24:08,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:24:08,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:24:08,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:24:08,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:24:08,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:24:08,116 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 05:24:08,132 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:24:08,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:24:08,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:24:08,133 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:24:08,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:24:08,133 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:24:08,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:24:08,134 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:24:08,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:24:08,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:24:08,134 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:24:08,134 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:24:08,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:24:08,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:24:08,135 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:24:08,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:24:08,136 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:24:08,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:24:08,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:24:08,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:24:08,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:24:08,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:24:08,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:24:08,137 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:24:08,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:24:08,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:24:08,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:24:08,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:24:08,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:24:08,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:24:08,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:24:08,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:24:08,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:24:08,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:24:08,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:24:08,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:24:08,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:24:08,140 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:24:08,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:24:08,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:24:08,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:24:08,446 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:24:08,447 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:24:08,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-11-24 05:24:08,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fb584cb/7f34b87fa2d64c67929bc094f7fd91ef/FLAGa8cabce2c [2019-11-24 05:24:09,053 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:24:09,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-11-24 05:24:09,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fb584cb/7f34b87fa2d64c67929bc094f7fd91ef/FLAGa8cabce2c [2019-11-24 05:24:09,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2fb584cb/7f34b87fa2d64c67929bc094f7fd91ef [2019-11-24 05:24:09,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:24:09,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:24:09,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:09,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:24:09,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:24:09,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:09" (1/1) ... [2019-11-24 05:24:09,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea8667c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:09, skipping insertion in model container [2019-11-24 05:24:09,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:09" (1/1) ... [2019-11-24 05:24:09,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:24:09,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:24:09,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:09,892 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:24:09,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:10,031 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:24:10,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10 WrapperNode [2019-11-24 05:24:10,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:10,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:10,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:24:10,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:24:10,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:10,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:24:10,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:24:10,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:24:10,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (1/1) ... [2019-11-24 05:24:10,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:24:10,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:24:10,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:24:10,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:24:10,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (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 05:24:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:24:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:24:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:24:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:24:12,686 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:24:12,686 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-24 05:24:12,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:12 BoogieIcfgContainer [2019-11-24 05:24:12,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:24:12,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:24:12,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:24:12,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:24:12,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:24:09" (1/3) ... [2019-11-24 05:24:12,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9cecee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:12, skipping insertion in model container [2019-11-24 05:24:12,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:10" (2/3) ... [2019-11-24 05:24:12,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9cecee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:12, skipping insertion in model container [2019-11-24 05:24:12,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:12" (3/3) ... [2019-11-24 05:24:12,697 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2019-11-24 05:24:12,707 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:24:12,716 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:24:12,729 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:24:12,753 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:24:12,753 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:24:12,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:24:12,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:24:12,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:24:12,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:24:12,754 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:24:12,755 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:24:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:24:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:24:12,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:12,777 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:12,777 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1707424420, now seen corresponding path program 1 times [2019-11-24 05:24:12,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:12,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968741281] [2019-11-24 05:24:12,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:13,077 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 05:24:13,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968741281] [2019-11-24 05:24:13,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:24:13,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:24:13,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978524089] [2019-11-24 05:24:13,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:24:13,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:13,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:24:13,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:24:13,096 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-24 05:24:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:13,115 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-24 05:24:13,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:24:13,117 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:24:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:13,128 INFO L225 Difference]: With dead ends: 50 [2019-11-24 05:24:13,128 INFO L226 Difference]: Without dead ends: 24 [2019-11-24 05:24:13,131 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:24:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-24 05:24:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-24 05:24:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 05:24:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-24 05:24:13,169 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-24 05:24:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:13,169 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-24 05:24:13,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:24:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-24 05:24:13,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:24:13,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:13,170 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:13,170 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:13,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:13,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1099461883, now seen corresponding path program 1 times [2019-11-24 05:24:13,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:13,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134589053] [2019-11-24 05:24:13,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:13,312 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 05:24:13,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134589053] [2019-11-24 05:24:13,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:24:13,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:24:13,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383868859] [2019-11-24 05:24:13,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:24:13,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:13,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:24:13,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:24:13,317 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 3 states. [2019-11-24 05:24:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:13,394 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2019-11-24 05:24:13,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:24:13,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:24:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:13,396 INFO L225 Difference]: With dead ends: 46 [2019-11-24 05:24:13,396 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:24:13,398 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:24:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:24:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:24:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:24:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:24:13,412 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:24:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:13,413 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:24:13,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:24:13,413 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:24:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:24:13,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:13,414 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:24:13,414 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:13,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:13,415 INFO L82 PathProgramCache]: Analyzing trace with hash 795293104, now seen corresponding path program 1 times [2019-11-24 05:24:13,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:13,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022638100] [2019-11-24 05:24:13,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:13,705 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022638100] [2019-11-24 05:24:13,705 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752217042] [2019-11-24 05:24:13,706 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 05:24:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:13,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-24 05:24:13,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:13,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:13,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:13,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:13,971 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:13,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,007 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,074 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:14,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 05:24:14,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6] total 9 [2019-11-24 05:24:14,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735387655] [2019-11-24 05:24:14,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 05:24:14,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:14,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 05:24:14,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-11-24 05:24:14,151 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 7 states. [2019-11-24 05:24:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:14,429 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2019-11-24 05:24:14,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 05:24:14,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-24 05:24:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:14,433 INFO L225 Difference]: With dead ends: 117 [2019-11-24 05:24:14,433 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:24:14,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-11-24 05:24:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:24:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2019-11-24 05:24:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-24 05:24:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2019-11-24 05:24:14,449 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 13 [2019-11-24 05:24:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:14,450 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2019-11-24 05:24:14,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 05:24:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2019-11-24 05:24:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 05:24:14,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:14,451 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:14,655 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:24:14,656 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:14,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1805880688, now seen corresponding path program 1 times [2019-11-24 05:24:14,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:14,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799363532] [2019-11-24 05:24:14,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:15,375 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:15,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799363532] [2019-11-24 05:24:15,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394963695] [2019-11-24 05:24:15,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:24:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:15,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-24 05:24:15,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:15,781 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-11-24 05:24:15,948 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-11-24 05:24:15,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:15,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,626 WARN L192 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2019-11-24 05:24:16,883 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-11-24 05:24:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-24 05:24:16,898 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:16,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:16,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,199 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,199 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,202 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,208 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,214 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,493 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 20 [2019-11-24 05:24:17,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 05:24:17,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,593 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:24:17,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1667622301] [2019-11-24 05:24:17,717 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:24:17,717 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:24:17,726 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:24:17,738 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:24:17,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:24:25,471 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:24:27,074 WARN L192 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:24:27,207 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:24:27,985 WARN L192 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-11-24 05:24:28,551 WARN L192 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 608 [2019-11-24 05:24:28,950 WARN L192 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 608 [2019-11-24 05:24:29,477 WARN L192 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-11-24 05:24:30,920 WARN L192 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:24:35,491 WARN L192 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 964 DAG size of output: 879 [2019-11-24 05:24:38,239 WARN L192 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 964 DAG size of output: 879 [2019-11-24 05:24:41,356 WARN L192 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 863 DAG size of output: 861 [2019-11-24 05:24:43,008 WARN L192 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 814 DAG size of output: 776 [2019-11-24 05:24:43,586 WARN L192 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 776 [2019-11-24 05:24:43,957 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 774 [2019-11-24 05:24:43,958 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 05:24:48,734 WARN L192 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 486 DAG size of output: 431 [2019-11-24 05:25:08,296 WARN L192 SmtUtils]: Spent 19.12 s on a formula simplification. DAG size of input: 769 DAG size of output: 578 [2019-11-24 05:25:35,368 WARN L192 SmtUtils]: Spent 25.93 s on a formula simplification. DAG size of input: 808 DAG size of output: 567