java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:16:07,699 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:16:07,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:16:07,714 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:16:07,714 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:16:07,715 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:16:07,717 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:16:07,719 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:16:07,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:16:07,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:16:07,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:16:07,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:16:07,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:16:07,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:16:07,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:16:07,728 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:16:07,729 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:16:07,731 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:16:07,733 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:16:07,735 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:16:07,736 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:16:07,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:16:07,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:16:07,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 21:16:07,767 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:16:07,767 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:16:07,768 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:16:07,769 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:16:07,769 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:16:07,769 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:16:07,769 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:16:07,769 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:16:07,770 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:16:07,770 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:16:07,770 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:16:07,770 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:16:07,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:16:07,771 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:16:07,771 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:16:07,771 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:16:07,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:16:07,772 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:16:07,772 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:16:07,772 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:16:07,772 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:16:07,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:16:07,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:16:07,773 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:16:07,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:16:07,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:16:07,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:16:07,774 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:16:07,774 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:16:07,774 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:16:07,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:16:07,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:16:07,775 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:16:07,775 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:16:07,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:16:07,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:16:07,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:16:07,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:16:07,839 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:16:07,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label37_false-unreach-call.c [2018-10-23 21:16:07,903 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1bf7cf233/f170b3c4044f46babbdbe5115975e5d8/FLAG2d175553e [2018-10-23 21:16:08,608 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:16:08,611 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label37_false-unreach-call.c [2018-10-23 21:16:08,634 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1bf7cf233/f170b3c4044f46babbdbe5115975e5d8/FLAG2d175553e [2018-10-23 21:16:08,650 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1bf7cf233/f170b3c4044f46babbdbe5115975e5d8 [2018-10-23 21:16:08,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:16:08,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:16:08,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:16:08,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:16:08,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:16:08,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:16:08" (1/1) ... [2018-10-23 21:16:08,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198ea779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:08, skipping insertion in model container [2018-10-23 21:16:08,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:16:08" (1/1) ... [2018-10-23 21:16:08,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:16:08,781 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:16:09,532 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:16:09,538 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:16:09,769 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:16:09,793 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:16:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09 WrapperNode [2018-10-23 21:16:09,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:16:09,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:16:09,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:16:09,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:16:09,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:09,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:16:10,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:16:10,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:16:10,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:16:10,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... [2018-10-23 21:16:10,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:16:10,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:16:10,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:16:10,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:16:10,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:16:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:16:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:16:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:16:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:16:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:16:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:16:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:16:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:16:15,393 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:16:15,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:15 BoogieIcfgContainer [2018-10-23 21:16:15,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:16:15,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:16:15,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:16:15,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:16:15,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:16:08" (1/3) ... [2018-10-23 21:16:15,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fc0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:15, skipping insertion in model container [2018-10-23 21:16:15,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:09" (2/3) ... [2018-10-23 21:16:15,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fc0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:15, skipping insertion in model container [2018-10-23 21:16:15,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:15" (3/3) ... [2018-10-23 21:16:15,417 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label37_false-unreach-call.c [2018-10-23 21:16:15,429 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:16:15,441 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:16:15,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:16:15,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:16:15,506 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:16:15,506 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:16:15,506 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:16:15,506 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:16:15,507 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:16:15,507 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:16:15,507 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:16:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 21:16:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-23 21:16:15,564 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:15,565 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:15,570 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:15,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:15,577 INFO L82 PathProgramCache]: Analyzing trace with hash 182730809, now seen corresponding path program 1 times [2018-10-23 21:16:15,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:15,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:15,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:15,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:15,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:16,513 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 21:16:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:16,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:16,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:16:16,702 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:16,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:16:16,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:16:16,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:16,732 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-23 21:16:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:19,040 INFO L93 Difference]: Finished difference Result 845 states and 1487 transitions. [2018-10-23 21:16:19,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:16:19,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2018-10-23 21:16:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:19,069 INFO L225 Difference]: With dead ends: 845 [2018-10-23 21:16:19,069 INFO L226 Difference]: Without dead ends: 531 [2018-10-23 21:16:19,078 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-10-23 21:16:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 530. [2018-10-23 21:16:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-10-23 21:16:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 869 transitions. [2018-10-23 21:16:19,180 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 869 transitions. Word has length 156 [2018-10-23 21:16:19,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:19,182 INFO L481 AbstractCegarLoop]: Abstraction has 530 states and 869 transitions. [2018-10-23 21:16:19,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:16:19,182 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 869 transitions. [2018-10-23 21:16:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-10-23 21:16:19,189 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:19,189 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:19,190 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:19,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:19,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2037660448, now seen corresponding path program 1 times [2018-10-23 21:16:19,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:19,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:19,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:19,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:19,192 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:19,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:19,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:16:19,500 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:19,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:16:19,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:16:19,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:16:19,503 INFO L87 Difference]: Start difference. First operand 530 states and 869 transitions. Second operand 6 states. [2018-10-23 21:16:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:23,197 INFO L93 Difference]: Finished difference Result 1599 states and 2688 transitions. [2018-10-23 21:16:23,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 21:16:23,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2018-10-23 21:16:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:23,209 INFO L225 Difference]: With dead ends: 1599 [2018-10-23 21:16:23,209 INFO L226 Difference]: Without dead ends: 1075 [2018-10-23 21:16:23,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 21:16:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2018-10-23 21:16:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1034. [2018-10-23 21:16:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-10-23 21:16:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1689 transitions. [2018-10-23 21:16:23,284 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1689 transitions. Word has length 166 [2018-10-23 21:16:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:23,284 INFO L481 AbstractCegarLoop]: Abstraction has 1034 states and 1689 transitions. [2018-10-23 21:16:23,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:16:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1689 transitions. [2018-10-23 21:16:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-23 21:16:23,289 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:23,290 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:23,290 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:23,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:23,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1179442109, now seen corresponding path program 1 times [2018-10-23 21:16:23,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:23,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:23,292 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:23,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:23,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:16:23,603 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:23,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:16:23,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:16:23,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:23,605 INFO L87 Difference]: Start difference. First operand 1034 states and 1689 transitions. Second operand 3 states. [2018-10-23 21:16:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:26,124 INFO L93 Difference]: Finished difference Result 2929 states and 4967 transitions. [2018-10-23 21:16:26,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:16:26,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2018-10-23 21:16:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:26,145 INFO L225 Difference]: With dead ends: 2929 [2018-10-23 21:16:26,146 INFO L226 Difference]: Without dead ends: 1901 [2018-10-23 21:16:26,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2018-10-23 21:16:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1879. [2018-10-23 21:16:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2018-10-23 21:16:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 3071 transitions. [2018-10-23 21:16:26,238 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 3071 transitions. Word has length 169 [2018-10-23 21:16:26,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:26,238 INFO L481 AbstractCegarLoop]: Abstraction has 1879 states and 3071 transitions. [2018-10-23 21:16:26,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:16:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 3071 transitions. [2018-10-23 21:16:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-23 21:16:26,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:26,247 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:26,247 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:26,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:26,248 INFO L82 PathProgramCache]: Analyzing trace with hash 71402321, now seen corresponding path program 1 times [2018-10-23 21:16:26,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:26,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:26,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:26,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:26,251 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:26,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:26,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 21:16:26,553 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:26,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 21:16:26,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 21:16:26,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:16:26,554 INFO L87 Difference]: Start difference. First operand 1879 states and 3071 transitions. Second operand 7 states. [2018-10-23 21:16:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:28,964 INFO L93 Difference]: Finished difference Result 5724 states and 10172 transitions. [2018-10-23 21:16:28,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:16:28,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2018-10-23 21:16:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:29,006 INFO L225 Difference]: With dead ends: 5724 [2018-10-23 21:16:29,006 INFO L226 Difference]: Without dead ends: 3851 [2018-10-23 21:16:29,014 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-23 21:16:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2018-10-23 21:16:29,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3742. [2018-10-23 21:16:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2018-10-23 21:16:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 6337 transitions. [2018-10-23 21:16:29,194 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 6337 transitions. Word has length 175 [2018-10-23 21:16:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:29,194 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 6337 transitions. [2018-10-23 21:16:29,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 21:16:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 6337 transitions. [2018-10-23 21:16:29,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-23 21:16:29,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:29,208 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:29,208 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:29,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:29,209 INFO L82 PathProgramCache]: Analyzing trace with hash -602294345, now seen corresponding path program 1 times [2018-10-23 21:16:29,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:29,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:29,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:29,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:29,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:29,431 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 21:16:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 21:16:29,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:16:29,477 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:16:29,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-10-23 21:16:29,481 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [25], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [709], [711], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 21:16:29,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:16:29,575 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 21:20:43,585 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 21:20:43,585 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 21:20:43,587 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 21:20:43,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:20:43,587 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:20:43,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:20:43,598 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 21:20:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:20:43,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:20:43,848 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 21:20:44,049 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:20:44,049 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:20:44,054 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:20:44,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:20:44 BoogieIcfgContainer [2018-10-23 21:20:44,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:20:44,055 INFO L168 Benchmark]: Toolchain (without parser) took 275392.86 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -668.6 MB). Peak memory consumption was 493.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,056 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:20:44,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1130.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 291.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -893.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,059 INFO L168 Benchmark]: Boogie Preprocessor took 110.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,060 INFO L168 Benchmark]: RCFGBuilder took 5202.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.2 MB). Peak memory consumption was 253.2 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,061 INFO L168 Benchmark]: TraceAbstraction took 268653.08 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 392.7 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 266.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:44,072 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1130.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 291.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -893.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5202.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.2 MB). Peak memory consumption was 253.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268653.08 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 392.7 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -126.4 MB). Peak memory consumption was 266.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1482]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1482). Cancelled while BasicCegarLoop was analyzing trace of length 185 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 268.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 11.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 781 SDtfs, 2792 SDslu, 675 SDs, 0 SdLazy, 4227 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 254.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 173 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 666 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 266482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 33/33 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown