/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:20:57,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:20:57,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:20:57,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:20:57,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:20:57,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:20:57,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:20:57,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:20:57,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:20:57,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:20:57,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:20:57,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:20:57,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:20:57,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:20:57,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:20:57,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:20:57,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:20:57,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:20:57,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:20:57,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:20:57,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:20:57,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:20:57,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:20:57,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:20:57,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:20:57,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:20:57,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:20:57,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:20:57,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:20:57,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:20:57,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:20:57,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:20:57,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:20:57,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:20:57,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:20:57,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:20:57,533 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 05:20:57,548 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:20:57,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:20:57,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:20:57,550 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:20:57,550 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:20:57,550 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:20:57,550 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:20:57,551 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:20:57,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:20:57,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:20:57,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:20:57,551 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:20:57,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:20:57,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:20:57,552 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:20:57,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:20:57,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:20:57,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:20:57,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:20:57,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:20:57,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:20:57,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:20:57,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:20:57,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:20:57,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:20:57,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:20:57,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:20:57,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:20:57,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:20:57,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:20:57,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:20:57,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:20:57,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:20:57,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:20:57,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:20:57,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:20:57,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:20:57,557 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:20:57,834 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:20:57,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:20:57,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:20:57,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:20:57,851 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:20:57,852 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-11-24 05:20:57,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c445973/02fcb1765528437d82d8c9a4ca2d8c31/FLAG6fb48eee6 [2019-11-24 05:20:58,469 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:20:58,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-11-24 05:20:58,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c445973/02fcb1765528437d82d8c9a4ca2d8c31/FLAG6fb48eee6 [2019-11-24 05:20:58,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6c445973/02fcb1765528437d82d8c9a4ca2d8c31 [2019-11-24 05:20:58,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:20:58,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:20:58,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:20:58,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:20:58,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:20:58,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:20:58" (1/1) ... [2019-11-24 05:20:58,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b864978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:58, skipping insertion in model container [2019-11-24 05:20:58,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:20:58" (1/1) ... [2019-11-24 05:20:58,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:20:58,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:20:59,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:20:59,343 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:20:59,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:20:59,490 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:20:59,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59 WrapperNode [2019-11-24 05:20:59,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:20:59,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:20:59,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:20:59,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:20:59,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:20:59,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:20:59,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:20:59,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:20:59,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (1/1) ... [2019-11-24 05:20:59,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:20:59,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:20:59,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:20:59,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:20:59,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (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 05:20:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:20:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:20:59,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:20:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:21:01,687 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:21:01,688 INFO L284 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-24 05:21:01,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:21:01 BoogieIcfgContainer [2019-11-24 05:21:01,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:21:01,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:21:01,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:21:01,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:21:01,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:20:58" (1/3) ... [2019-11-24 05:21:01,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b1cf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:21:01, skipping insertion in model container [2019-11-24 05:21:01,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:20:59" (2/3) ... [2019-11-24 05:21:01,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b1cf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:21:01, skipping insertion in model container [2019-11-24 05:21:01,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:21:01" (3/3) ... [2019-11-24 05:21:01,704 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2019-11-24 05:21:01,719 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:21:01,729 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:21:01,743 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:21:01,779 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:21:01,779 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:21:01,779 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:21:01,779 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:21:01,780 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:21:01,780 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:21:01,781 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:21:01,781 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:21:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:21:01,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:21:01,811 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:21:01,812 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:21:01,813 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:21:01,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:21:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 533443839, now seen corresponding path program 1 times [2019-11-24 05:21:01,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:21:01,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755985864] [2019-11-24 05:21:01,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:21:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:02,211 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 05:21:02,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755985864] [2019-11-24 05:21:02,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:21:02,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:21:02,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844232651] [2019-11-24 05:21:02,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:21:02,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:21:02,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:21:02,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:21:02,235 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-24 05:21:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:21:02,318 INFO L93 Difference]: Finished difference Result 68 states and 105 transitions. [2019-11-24 05:21:02,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:21:02,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-24 05:21:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:21:02,331 INFO L225 Difference]: With dead ends: 68 [2019-11-24 05:21:02,331 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 05:21:02,335 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 05:21:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 05:21:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-24 05:21:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-24 05:21:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-24 05:21:02,391 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-24 05:21:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:21:02,392 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-24 05:21:02,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:21:02,392 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-24 05:21:02,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:21:02,395 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:21:02,395 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-24 05:21:02,395 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:21:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:21:02,396 INFO L82 PathProgramCache]: Analyzing trace with hash 694655352, now seen corresponding path program 1 times [2019-11-24 05:21:02,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:21:02,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186847198] [2019-11-24 05:21:02,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:21:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:21:02,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186847198] [2019-11-24 05:21:02,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590906278] [2019-11-24 05:21:02,718 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 05:21:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:21:02,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-24 05:21:02,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:21:03,159 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-11-24 05:21:03,344 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-11-24 05:21:03,471 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2019-11-24 05:21:03,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:21:03,638 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:21:03,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:21:03,929 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 05:21:03,929 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1019760115] [2019-11-24 05:21:03,954 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:21:03,954 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:21:03,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:21:03,967 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:21:03,968 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:21:11,938 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:21:13,690 WARN L192 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:21:13,859 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:21:15,044 WARN L192 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 683 [2019-11-24 05:21:17,745 WARN L192 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 801 DAG size of output: 797 [2019-11-24 05:21:18,732 WARN L192 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:19,294 WARN L192 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:19,697 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:20,030 WARN L192 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:20,373 WARN L192 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:20,685 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 712 [2019-11-24 05:21:20,710 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 05:21:25,364 WARN L192 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 486 DAG size of output: 431 [2019-11-24 05:21:46,989 WARN L192 SmtUtils]: Spent 21.15 s on a formula simplification. DAG size of input: 712 DAG size of output: 521 [2019-11-24 05:22:12,575 WARN L192 SmtUtils]: Spent 25.06 s on a formula simplification. DAG size of input: 794 DAG size of output: 554