/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_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:37:58,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:37:58,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:37:58,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:37:58,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:37:58,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:37:58,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:37:58,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:37:58,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:37:58,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:37:58,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:37:58,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:37:58,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:37:58,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:37:58,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:37:58,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:37:58,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:37:58,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:37:58,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:37:58,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:37:58,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:37:58,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:37:58,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:37:58,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:37:58,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:37:58,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:37:58,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:37:58,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:37:58,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:37:58,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:37:58,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:37:58,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:37:58,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:37:58,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:37:58,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:37:58,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:37:58,070 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 05:37:58,094 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:37:58,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:37:58,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:37:58,096 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:37:58,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:37:58,096 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:37:58,096 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:37:58,096 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:37:58,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:37:58,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:37:58,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:37:58,098 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:37:58,098 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:37:58,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:37:58,099 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:37:58,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:37:58,101 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:37:58,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:37:58,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:37:58,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:37:58,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:37:58,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:37:58,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:37:58,103 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:37:58,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:37:58,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:37:58,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:37:58,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:37:58,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:37:58,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:37:58,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:37:58,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:37:58,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:37:58,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:37:58,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:37:58,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:37:58,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:37:58,107 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:37:58,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:37:58,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:37:58,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:37:58,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:37:58,445 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:37:58,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-11-24 05:37:58,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3b3ac95/67a18046ddb54e6d83f85a4033a67d15/FLAG6ee9dc652 [2019-11-24 05:37:59,125 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:37:59,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2019-11-24 05:37:59,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3b3ac95/67a18046ddb54e6d83f85a4033a67d15/FLAG6ee9dc652 [2019-11-24 05:37:59,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3b3ac95/67a18046ddb54e6d83f85a4033a67d15 [2019-11-24 05:37:59,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:37:59,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:37:59,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:37:59,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:37:59,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:37:59,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:37:59" (1/1) ... [2019-11-24 05:37:59,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2548fb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:37:59, skipping insertion in model container [2019-11-24 05:37:59,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:37:59" (1/1) ... [2019-11-24 05:37:59,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:37:59,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:37:59,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:37:59,878 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:37:59,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:38:00,010 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:38:00,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00 WrapperNode [2019-11-24 05:38:00,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:38:00,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:38:00,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:38:00,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:38:00,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:38:00,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:38:00,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:38:00,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:38:00,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (1/1) ... [2019-11-24 05:38:00,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:38:00,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:38:00,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:38:00,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:38:00,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (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 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:38:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:38:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:38:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:38:04,461 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:38:04,462 INFO L284 CfgBuilder]: Removed 368 assume(true) statements. [2019-11-24 05:38:04,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:38:04 BoogieIcfgContainer [2019-11-24 05:38:04,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:38:04,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:38:04,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:38:04,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:38:04,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:37:59" (1/3) ... [2019-11-24 05:38:04,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35497bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:38:04, skipping insertion in model container [2019-11-24 05:38:04,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:38:00" (2/3) ... [2019-11-24 05:38:04,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35497bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:38:04, skipping insertion in model container [2019-11-24 05:38:04,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:38:04" (3/3) ... [2019-11-24 05:38:04,474 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-11-24 05:38:04,486 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:38:04,496 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 05:38:04,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 05:38:04,545 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:38:04,546 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:38:04,546 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:38:04,546 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:38:04,546 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:38:04,547 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:38:04,547 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:38:04,547 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:38:04,567 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-24 05:38:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:38:04,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:38:04,576 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:38:04,577 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:38:04,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:38:04,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2098171670, now seen corresponding path program 1 times [2019-11-24 05:38:04,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:38:04,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783105467] [2019-11-24 05:38:04,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:38:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:38:04,949 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 05:38:04,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783105467] [2019-11-24 05:38:04,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:38:04,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:38:04,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354997972] [2019-11-24 05:38:04,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:38:04,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:38:04,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:38:04,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:38:04,975 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-24 05:38:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:38:05,004 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-24 05:38:05,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:38:05,006 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:38:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:38:05,020 INFO L225 Difference]: With dead ends: 50 [2019-11-24 05:38:05,021 INFO L226 Difference]: Without dead ends: 24 [2019-11-24 05:38:05,026 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 05:38:05,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-24 05:38:05,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-24 05:38:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 05:38:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-24 05:38:05,075 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-24 05:38:05,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:38:05,076 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-24 05:38:05,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:38:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-24 05:38:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:38:05,078 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:38:05,078 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:38:05,078 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:38:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:38:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1588251626, now seen corresponding path program 1 times [2019-11-24 05:38:05,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:38:05,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040121595] [2019-11-24 05:38:05,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:38:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:38:05,544 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 05:38:05,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040121595] [2019-11-24 05:38:05,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:38:05,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-24 05:38:05,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123227553] [2019-11-24 05:38:05,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 05:38:05,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:38:05,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 05:38:05,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-24 05:38:05,549 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 6 states. [2019-11-24 05:38:05,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:38:05,872 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2019-11-24 05:38:05,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 05:38:05,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-11-24 05:38:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:38:05,874 INFO L225 Difference]: With dead ends: 57 [2019-11-24 05:38:05,874 INFO L226 Difference]: Without dead ends: 53 [2019-11-24 05:38:05,875 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-24 05:38:05,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-24 05:38:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 33. [2019-11-24 05:38:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-24 05:38:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2019-11-24 05:38:05,891 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 8 [2019-11-24 05:38:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:38:05,892 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2019-11-24 05:38:05,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 05:38:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2019-11-24 05:38:05,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-24 05:38:05,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:38:05,893 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:38:05,894 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:38:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:38:05,894 INFO L82 PathProgramCache]: Analyzing trace with hash 637207007, now seen corresponding path program 1 times [2019-11-24 05:38:05,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:38:05,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960716661] [2019-11-24 05:38:05,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:38:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:38:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:38:06,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960716661] [2019-11-24 05:38:06,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248568134] [2019-11-24 05:38:06,105 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 05:38:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:38:06,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-24 05:38:06,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:38:06,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:38:06,427 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:38:06,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 05:38:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:38:06,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1124961975] [2019-11-24 05:38:06,524 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-24 05:38:06,524 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:38:06,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:38:06,541 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:38:06,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 05:38:14,375 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-24 05:38:15,975 WARN L192 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-24 05:38:16,106 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-24 05:38:16,845 WARN L192 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 717 DAG size of output: 615 [2019-11-24 05:38:19,470 WARN L192 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-11-24 05:38:38,480 WARN L192 SmtUtils]: Spent 8.92 s on a formula simplification. DAG size of input: 2156 DAG size of output: 1242