/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/email_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 05:01:22,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 05:01:22,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 05:01:22,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 05:01:22,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 05:01:22,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 05:01:22,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 05:01:22,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 05:01:22,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 05:01:22,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 05:01:22,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 05:01:22,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 05:01:22,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 05:01:22,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 05:01:22,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 05:01:22,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 05:01:22,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 05:01:22,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 05:01:22,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 05:01:22,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 05:01:22,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 05:01:22,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 05:01:22,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 05:01:22,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 05:01:22,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 05:01:22,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 05:01:22,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 05:01:22,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 05:01:22,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 05:01:22,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 05:01:22,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 05:01:22,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 05:01:22,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 05:01:22,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 05:01:22,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 05:01:22,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 05:01:22,329 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 05:01:22,363 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 05:01:22,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 05:01:22,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 05:01:22,365 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 05:01:22,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 05:01:22,365 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 05:01:22,365 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 05:01:22,365 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 05:01:22,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 05:01:22,368 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 05:01:22,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 05:01:22,369 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 05:01:22,369 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 05:01:22,369 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 05:01:22,369 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 05:01:22,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 05:01:22,370 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 05:01:22,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 05:01:22,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 05:01:22,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 05:01:22,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 05:01:22,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 05:01:22,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 05:01:22,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 05:01:22,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 05:01:22,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 05:01:22,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 05:01:22,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 05:01:22,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 05:01:22,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 05:01:22,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 05:01:22,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 05:01:22,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 05:01:22,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 05:01:22,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 05:01:22,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 05:01:22,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 05:01:22,376 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 05:01:22,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 05:01:22,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 05:01:22,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 05:01:22,709 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 05:01:22,709 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 05:01:22,710 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2019-11-24 05:01:22,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63e22a8/43403a143cbd453cbd434a0a4f4e734c/FLAGb0247bbfc [2019-11-24 05:01:23,429 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 05:01:23,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2019-11-24 05:01:23,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63e22a8/43403a143cbd453cbd434a0a4f4e734c/FLAGb0247bbfc [2019-11-24 05:01:23,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63e22a8/43403a143cbd453cbd434a0a4f4e734c [2019-11-24 05:01:23,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 05:01:23,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 05:01:23,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 05:01:23,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 05:01:23,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 05:01:23,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:01:23" (1/1) ... [2019-11-24 05:01:23,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b55dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:23, skipping insertion in model container [2019-11-24 05:01:23,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 05:01:23" (1/1) ... [2019-11-24 05:01:23,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 05:01:23,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 05:01:24,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:01:24,452 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 05:01:24,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 05:01:24,706 INFO L208 MainTranslator]: Completed translation [2019-11-24 05:01:24,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24 WrapperNode [2019-11-24 05:01:24,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 05:01:24,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 05:01:24,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 05:01:24,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 05:01:24,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:24,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 05:01:25,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 05:01:25,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 05:01:25,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 05:01:25,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (1/1) ... [2019-11-24 05:01:25,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 05:01:25,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 05:01:25,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 05:01:25,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 05:01:25,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (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 05:01:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-24 05:01:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 05:01:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 05:01:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 05:01:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 05:01:42,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 05:01:42,664 INFO L284 CfgBuilder]: Removed 741 assume(true) statements. [2019-11-24 05:01:42,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:01:42 BoogieIcfgContainer [2019-11-24 05:01:42,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 05:01:42,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 05:01:42,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 05:01:42,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 05:01:42,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 05:01:23" (1/3) ... [2019-11-24 05:01:42,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c699d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:01:42, skipping insertion in model container [2019-11-24 05:01:42,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 05:01:24" (2/3) ... [2019-11-24 05:01:42,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7c699d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 05:01:42, skipping insertion in model container [2019-11-24 05:01:42,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 05:01:42" (3/3) ... [2019-11-24 05:01:42,674 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2019-11-24 05:01:42,683 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 05:01:42,691 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-24 05:01:42,702 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-24 05:01:42,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 05:01:42,727 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 05:01:42,727 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 05:01:42,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 05:01:42,727 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 05:01:42,727 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 05:01:42,727 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 05:01:42,727 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 05:01:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-11-24 05:01:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 05:01:42,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:01:42,751 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:01:42,751 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:01:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:01:42,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2081928244, now seen corresponding path program 1 times [2019-11-24 05:01:42,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:01:42,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673195299] [2019-11-24 05:01:42,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:01:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:01:43,152 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 05:01:43,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673195299] [2019-11-24 05:01:43,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:01:43,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 05:01:43,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902308499] [2019-11-24 05:01:43,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 05:01:43,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:01:43,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 05:01:43,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 05:01:43,169 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-11-24 05:01:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:01:43,195 INFO L93 Difference]: Finished difference Result 136 states and 201 transitions. [2019-11-24 05:01:43,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 05:01:43,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-24 05:01:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:01:43,209 INFO L225 Difference]: With dead ends: 136 [2019-11-24 05:01:43,210 INFO L226 Difference]: Without dead ends: 77 [2019-11-24 05:01:43,214 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 05:01:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-24 05:01:43,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-24 05:01:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-24 05:01:43,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2019-11-24 05:01:43,260 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 8 [2019-11-24 05:01:43,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:01:43,261 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2019-11-24 05:01:43,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 05:01:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2019-11-24 05:01:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 05:01:43,262 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:01:43,262 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:01:43,263 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:01:43,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:01:43,264 INFO L82 PathProgramCache]: Analyzing trace with hash -409311808, now seen corresponding path program 1 times [2019-11-24 05:01:43,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:01:43,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055443572] [2019-11-24 05:01:43,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:01:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:01:43,431 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 05:01:43,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055443572] [2019-11-24 05:01:43,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 05:01:43,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 05:01:43,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195201782] [2019-11-24 05:01:43,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 05:01:43,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 05:01:43,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 05:01:43,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 05:01:43,435 INFO L87 Difference]: Start difference. First operand 77 states and 104 transitions. Second operand 3 states. [2019-11-24 05:01:43,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 05:01:43,472 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2019-11-24 05:01:43,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 05:01:43,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-24 05:01:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 05:01:43,476 INFO L225 Difference]: With dead ends: 130 [2019-11-24 05:01:43,476 INFO L226 Difference]: Without dead ends: 79 [2019-11-24 05:01:43,478 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 05:01:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-24 05:01:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-11-24 05:01:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-24 05:01:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 106 transitions. [2019-11-24 05:01:43,503 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 106 transitions. Word has length 9 [2019-11-24 05:01:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 05:01:43,504 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 106 transitions. [2019-11-24 05:01:43,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 05:01:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2019-11-24 05:01:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-24 05:01:43,505 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 05:01:43,505 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 05:01:43,506 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 05:01:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 05:01:43,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1926354590, now seen corresponding path program 1 times [2019-11-24 05:01:43,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 05:01:43,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405948220] [2019-11-24 05:01:43,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 05:01:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:01:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:01:43,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405948220] [2019-11-24 05:01:43,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136292050] [2019-11-24 05:01:43,766 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 05:01:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 05:01:44,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-24 05:01:44,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 05:01:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:01:44,349 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 05:01:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 05:01:44,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [778683015] [2019-11-24 05:01:44,414 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2019-11-24 05:01:44,414 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 05:01:44,420 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 05:01:44,429 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 05:01:44,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs