/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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:24:23,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:24:23,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:24:23,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:24:23,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:24:23,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:24:23,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:24:23,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:24:23,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:24:23,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:24:23,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:24:23,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:24:23,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:24:23,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:24:23,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:24:23,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:24:23,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:24:23,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:24:23,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:24:23,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:24:23,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:24:23,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:24:23,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:24:23,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:24:23,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:24:23,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:24:23,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:24:23,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:24:23,822 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 05:24:23,840 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:24:23,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:24:23,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:24:23,841 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:24:23,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:24:23,841 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:24:23,842 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:24:23,843 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:24:23,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:24:23,843 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:24:23,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:24:23,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:24:23,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:24:23,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:24:23,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:24:23,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:24:23,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:24:23,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:24:23,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:24:23,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:24:23,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:24:23,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:24:23,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:24:23,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:24:23,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:24:23,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:24:23,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:24:23,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:24:23,847 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:24:23,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:24:23,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:24:23,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:24:23,848 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:24:24,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:24:24,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:24:24,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:24:24,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:24:24,114 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:24:24,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-11-24 05:24:24,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d57088d/43cd444a7cae4e04872b84ba9e08c97a/FLAG7e117ed19 [2019-11-24 05:24:24,701 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:24:24,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-11-24 05:24:24,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d57088d/43cd444a7cae4e04872b84ba9e08c97a/FLAG7e117ed19 [2019-11-24 05:24:24,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d57088d/43cd444a7cae4e04872b84ba9e08c97a [2019-11-24 05:24:25,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:24:25,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:24:25,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:25,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:24:25,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:24:25,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:24" (1/1) ... [2019-11-24 05:24:25,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7d9541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25, skipping insertion in model container [2019-11-24 05:24:25,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:24:24" (1/1) ... [2019-11-24 05:24:25,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:24:25,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:24:25,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:25,519 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:24:25,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:24:25,679 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:24:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25 WrapperNode [2019-11-24 05:24:25,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:24:25,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:25,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:24:25,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:24:25,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:24:25,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:24:25,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:24:25,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:24:25,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (1/1) ... [2019-11-24 05:24:25,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:24:25,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:24:25,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:24:25,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:24:25,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (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 05:24:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:24:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:24:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:24:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:24:30,036 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:24:30,036 INFO L284 CfgBuilder]: Removed 352 assume(true) statements. [2019-11-24 05:24:30,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:30 BoogieIcfgContainer [2019-11-24 05:24:30,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:24:30,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:24:30,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:24:30,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:24:30,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:24:24" (1/3) ... [2019-11-24 05:24:30,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa705ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:30, skipping insertion in model container [2019-11-24 05:24:30,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:24:25" (2/3) ... [2019-11-24 05:24:30,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa705ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:24:30, skipping insertion in model container [2019-11-24 05:24:30,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:24:30" (3/3) ... [2019-11-24 05:24:30,047 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2019-11-24 05:24:30,058 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:24:30,067 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:24:30,081 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:24:30,105 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:24:30,105 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:24:30,106 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:24:30,106 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:24:30,106 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:24:30,106 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:24:30,107 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:24:30,107 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:24:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:24:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:24:30,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:30,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:30,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:30,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1241545417, now seen corresponding path program 1 times [2019-11-24 05:24:30,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:30,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596820943] [2019-11-24 05:24:30,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:30,404 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 05:24:30,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596820943] [2019-11-24 05:24:30,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:24:30,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:24:30,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583544441] [2019-11-24 05:24:30,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:24:30,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:30,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:24:30,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:24:30,430 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-24 05:24:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:30,455 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-24 05:24:30,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:24:30,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:24:30,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:30,470 INFO L225 Difference]: With dead ends: 50 [2019-11-24 05:24:30,471 INFO L226 Difference]: Without dead ends: 24 [2019-11-24 05:24:30,476 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 05:24:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-24 05:24:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-24 05:24:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 05:24:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-24 05:24:30,508 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-24 05:24:30,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:30,509 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-24 05:24:30,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:24:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-24 05:24:30,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:24:30,510 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:30,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:30,511 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:30,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:30,512 INFO L82 PathProgramCache]: Analyzing trace with hash 826674513, now seen corresponding path program 1 times [2019-11-24 05:24:30,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:30,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379610501] [2019-11-24 05:24:30,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:30,707 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 05:24:30,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379610501] [2019-11-24 05:24:30,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:24:30,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:24:30,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776901830] [2019-11-24 05:24:30,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:24:30,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:30,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:24:30,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:24:30,712 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 3 states. [2019-11-24 05:24:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:30,801 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2019-11-24 05:24:30,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:24:30,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:24:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:30,804 INFO L225 Difference]: With dead ends: 46 [2019-11-24 05:24:30,805 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:24:30,806 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 05:24:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:24:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:24:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:24:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:24:30,823 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:24:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:30,824 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:24:30,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:24:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:24:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:24:30,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:30,826 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:24:30,826 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:30,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1042282130, now seen corresponding path program 1 times [2019-11-24 05:24:30,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:30,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197921225] [2019-11-24 05:24:30,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:31,184 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 05:24:31,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197921225] [2019-11-24 05:24:31,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455968063] [2019-11-24 05:24:31,186 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 05:24:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:31,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-24 05:24:31,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:31,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,590 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 05:24:31,591 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:31,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:31,893 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 05:24:31,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-24 05:24:31,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [9] total 14 [2019-11-24 05:24:31,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450673691] [2019-11-24 05:24:31,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 05:24:31,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:24:31,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 05:24:31,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-11-24 05:24:31,897 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 7 states. [2019-11-24 05:24:32,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:24:32,213 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2019-11-24 05:24:32,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 05:24:32,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-24 05:24:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:24:32,217 INFO L225 Difference]: With dead ends: 117 [2019-11-24 05:24:32,217 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:24:32,218 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-24 05:24:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:24:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2019-11-24 05:24:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-24 05:24:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2019-11-24 05:24:32,229 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 13 [2019-11-24 05:24:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:24:32,229 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2019-11-24 05:24:32,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 05:24:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2019-11-24 05:24:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 05:24:32,231 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:24:32,231 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 05:24:32,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 05:24:32,446 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:24:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:24:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1468610994, now seen corresponding path program 1 times [2019-11-24 05:24:32,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:24:32,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969860472] [2019-11-24 05:24:32,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:24:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-24 05:24:32,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969860472] [2019-11-24 05:24:32,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484235715] [2019-11-24 05:24:32,663 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 05:24:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:24:32,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 50 conjunts are in the unsatisfiable core [2019-11-24 05:24:32,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:24:33,160 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-11-24 05:24:33,340 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-11-24 05:24:33,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:33,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:33,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:33,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:33,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,518 WARN L192 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 147 DAG size of output: 116 [2019-11-24 05:24:34,870 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2019-11-24 05:24:34,885 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 05:24:34,885 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:24:34,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:34,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:35,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:35,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:24:35,158 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 05:24:35,159 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [411631505] [2019-11-24 05:24:35,209 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:24:35,209 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:24:35,215 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:24:35,224 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:24:35,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:24:45,303 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:24:46,866 WARN L192 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:24:46,994 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:24:47,595 WARN L192 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 596 [2019-11-24 05:24:48,436 WARN L192 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 699 [2019-11-24 05:25:02,253 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 05:25:06,813 WARN L192 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 486 DAG size of output: 431 [2019-11-24 05:25:27,675 WARN L192 SmtUtils]: Spent 20.52 s on a formula simplification. DAG size of input: 699 DAG size of output: 496