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/Problem10_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:01:52,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:01:52,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:01:52,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:01:52,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:01:52,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:01:52,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:01:52,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:01:52,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:01:52,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:01:52,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:01:52,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:01:52,838 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:01:52,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:01:52,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:01:52,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:01:52,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:01:52,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:01:52,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:01:52,861 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:01:52,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:01:52,868 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:01:52,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:01:52,886 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 [2018-10-24 21:01:52,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:01:52,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:01:52,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:01:52,915 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:01:52,916 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:01:52,916 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:01:52,916 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:01:52,916 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:01:52,916 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:01:52,917 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:01:52,917 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:01:52,917 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:01:52,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:01:52,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:01:52,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:01:52,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:01:52,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:01:52,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:01:52,919 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:01:52,919 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:01:52,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:01:52,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:01:52,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:01:52,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:01:52,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:01:52,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:01:52,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:01:52,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:01:52,921 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:01:52,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:01:52,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:01:52,921 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:01:52,921 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:01:52,922 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:01:52,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:01:52,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:01:52,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:01:52,989 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:01:52,990 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:01:52,990 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39_true-unreach-call.c [2018-10-24 21:01:53,052 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a12596176/883bc2f6aab84b8493ac83ec01ee5f34/FLAG398577241 [2018-10-24 21:01:53,640 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:01:53,640 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39_true-unreach-call.c [2018-10-24 21:01:53,658 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a12596176/883bc2f6aab84b8493ac83ec01ee5f34/FLAG398577241 [2018-10-24 21:01:53,676 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a12596176/883bc2f6aab84b8493ac83ec01ee5f34 [2018-10-24 21:01:53,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:01:53,691 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:01:53,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:01:53,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:01:53,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:01:53,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:01:53" (1/1) ... [2018-10-24 21:01:53,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:53, skipping insertion in model container [2018-10-24 21:01:53,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:01:53" (1/1) ... [2018-10-24 21:01:53,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:01:53,776 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:01:54,241 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:01:54,246 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:01:54,388 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:01:54,409 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:01:54,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54 WrapperNode [2018-10-24 21:01:54,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:01:54,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:01:54,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:01:54,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:01:54,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:01:54,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:01:54,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:01:54,610 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:01:54,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (1/1) ... [2018-10-24 21:01:54,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:01:54,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:01:54,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:01:54,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:01:54,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (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 [2018-10-24 21:01:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:01:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:01:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:01:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:01:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:01:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:01:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:01:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:01:58,034 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:01:58,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:01:58 BoogieIcfgContainer [2018-10-24 21:01:58,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:01:58,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:01:58,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:01:58,044 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:01:58,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:01:53" (1/3) ... [2018-10-24 21:01:58,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424a1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:01:58, skipping insertion in model container [2018-10-24 21:01:58,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:01:54" (2/3) ... [2018-10-24 21:01:58,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424a1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:01:58, skipping insertion in model container [2018-10-24 21:01:58,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:01:58" (3/3) ... [2018-10-24 21:01:58,049 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label39_true-unreach-call.c [2018-10-24 21:01:58,058 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:01:58,067 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:01:58,085 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:01:58,124 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:01:58,124 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:01:58,125 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:01:58,125 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:01:58,125 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:01:58,125 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:01:58,126 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:01:58,126 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:01:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 21:01:58,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-24 21:01:58,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:01:58,164 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] [2018-10-24 21:01:58,167 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:01:58,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:01:58,176 INFO L82 PathProgramCache]: Analyzing trace with hash -113906311, now seen corresponding path program 1 times [2018-10-24 21:01:58,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:01:58,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:01:58,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:01:58,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:01:58,231 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:01:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:01:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:01:58,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:01:58,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:01:58,643 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:01:58,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:01:58,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:01:58,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:01:58,667 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-10-24 21:02:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:02:01,815 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-10-24 21:02:01,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:02:01,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-10-24 21:02:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:02:01,841 INFO L225 Difference]: With dead ends: 737 [2018-10-24 21:02:01,841 INFO L226 Difference]: Without dead ends: 515 [2018-10-24 21:02:01,851 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:02:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-10-24 21:02:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-10-24 21:02:01,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 21:02:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 613 transitions. [2018-10-24 21:02:01,949 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 613 transitions. Word has length 33 [2018-10-24 21:02:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:02:01,950 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 613 transitions. [2018-10-24 21:02:01,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:02:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 613 transitions. [2018-10-24 21:02:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 21:02:01,960 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:02:01,961 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:02:01,962 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:02:01,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:02:01,962 INFO L82 PathProgramCache]: Analyzing trace with hash -309675669, now seen corresponding path program 1 times [2018-10-24 21:02:01,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:02:01,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:02:01,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:02:01,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:02:01,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:02:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:02:02,358 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:02:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:02:02,464 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:02:02,464 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:02:02,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 105 with the following transitions: [2018-10-24 21:02:02,468 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:02:02,544 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:02:02,544 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:02:04,714 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:02:08,738 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:02:08,740 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:02:08,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:02:08,751 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:02:11,111 INFO L232 lantSequenceWeakener]: Weakened 102 states. On average, predicates are now at 73.47% of their original sizes. [2018-10-24 21:02:11,112 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:02:12,430 INFO L413 sIntCurrentIteration]: We have 103 unified AI predicates [2018-10-24 21:02:12,431 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:02:12,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:02:12,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-10-24 21:02:12,432 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:02:12,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 21:02:12,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 21:02:12,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-10-24 21:02:12,435 INFO L87 Difference]: Start difference. First operand 356 states and 613 transitions. Second operand 12 states. [2018-10-24 21:03:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:03:11,188 INFO L93 Difference]: Finished difference Result 1232 states and 2214 transitions. [2018-10-24 21:03:11,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 21:03:11,188 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 104 [2018-10-24 21:03:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:03:11,195 INFO L225 Difference]: With dead ends: 1232 [2018-10-24 21:03:11,195 INFO L226 Difference]: Without dead ends: 882 [2018-10-24 21:03:11,199 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2018-10-24 21:03:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2018-10-24 21:03:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 795. [2018-10-24 21:03:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2018-10-24 21:03:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1088 transitions. [2018-10-24 21:03:11,258 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1088 transitions. Word has length 104 [2018-10-24 21:03:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:03:11,259 INFO L481 AbstractCegarLoop]: Abstraction has 795 states and 1088 transitions. [2018-10-24 21:03:11,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 21:03:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1088 transitions. [2018-10-24 21:03:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 21:03:11,269 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:03:11,270 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:03:11,270 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:03:11,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:11,270 INFO L82 PathProgramCache]: Analyzing trace with hash -525228850, now seen corresponding path program 1 times [2018-10-24 21:03:11,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:03:11,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:11,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:03:11,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:11,272 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:03:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:03:11,611 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:03:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 21:03:12,004 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:03:12,004 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:03:12,004 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-10-24 21:03:12,005 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:03:12,010 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:03:12,010 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:03:13,250 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:03:20,001 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:03:20,002 INFO L272 AbstractInterpreter]: Visited 84 different actions 324 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 21:03:20,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:20,008 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:03:22,312 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 77.79% of their original sizes. [2018-10-24 21:03:22,312 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:03:28,601 INFO L413 sIntCurrentIteration]: We have 179 unified AI predicates [2018-10-24 21:03:28,602 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:03:28,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:03:28,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-24 21:03:28,603 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:03:28,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 21:03:28,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 21:03:28,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-24 21:03:28,604 INFO L87 Difference]: Start difference. First operand 795 states and 1088 transitions. Second operand 14 states. [2018-10-24 21:05:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:05:46,243 INFO L93 Difference]: Finished difference Result 1903 states and 2785 transitions. [2018-10-24 21:05:46,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 21:05:46,243 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 180 [2018-10-24 21:05:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:05:46,252 INFO L225 Difference]: With dead ends: 1903 [2018-10-24 21:05:46,253 INFO L226 Difference]: Without dead ends: 1258 [2018-10-24 21:05:46,256 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2018-10-24 21:05:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2018-10-24 21:05:46,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1246. [2018-10-24 21:05:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2018-10-24 21:05:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1584 transitions. [2018-10-24 21:05:46,430 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1584 transitions. Word has length 180 [2018-10-24 21:05:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:05:46,431 INFO L481 AbstractCegarLoop]: Abstraction has 1246 states and 1584 transitions. [2018-10-24 21:05:46,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-24 21:05:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1584 transitions. [2018-10-24 21:05:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-24 21:05:46,437 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:05:46,437 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:05:46,437 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:05:46,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:05:46,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1589121165, now seen corresponding path program 1 times [2018-10-24 21:05:46,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:05:46,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:05:46,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:05:46,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:05:46,439 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:05:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:05:46,760 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:05:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 21:05:47,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:05:47,368 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:05:47,368 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-10-24 21:05:47,369 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:05:47,373 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:05:47,373 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:05:48,809 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:05:51,057 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 21:05:51,058 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 21:05:51,059 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 21:05:51,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:05:51,060 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 [2018-10-24 21:05:51,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:05:51,072 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:05:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:05:51,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:05:51,184 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 21:05:51,385 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 21:05:51,386 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:05:51,391 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:05:51,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:05:51 BoogieIcfgContainer [2018-10-24 21:05:51,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:05:51,392 INFO L168 Benchmark]: Toolchain (without parser) took 237702.09 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -248.9 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,393 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:05:51,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.60 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.07 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -796.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,395 INFO L168 Benchmark]: Boogie Preprocessor took 122.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,396 INFO L168 Benchmark]: RCFGBuilder took 3302.79 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,397 INFO L168 Benchmark]: TraceAbstraction took 233351.74 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 386.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-24 21:05:51,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.60 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 198.07 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -796.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.74 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3302.79 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233351.74 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 386.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was analyzing trace of length 196 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 233.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 199.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 504 SDtfs, 2747 SDslu, 867 SDs, 0 SdLazy, 4748 SolverSat, 915 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 307 GetRequests, 259 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.992541628122109 AbsIntWeakeningRatio, 0.16312056737588654 AbsIntAvgWeakeningVarsNumRemoved, 61.56028368794326 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 258 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 228603 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 105/149 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown