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/Problem14_label09_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:37:54,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:37:54,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:37:54,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:37:54,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:37:54,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:37:54,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:37:54,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:37:54,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:37:54,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:37:54,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:37:54,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:37:54,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:37:54,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:37:54,937 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:37:54,938 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:37:54,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:37:54,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:37:54,943 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:37:54,944 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:37:54,945 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:37:54,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:37:54,949 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:37:54,958 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 21:37:54,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:37:54,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:37:54,978 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:37:54,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:37:54,978 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:37:54,979 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:37:54,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:37:54,979 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:37:54,979 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:37:54,979 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:37:54,980 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:37:54,980 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:37:54,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:37:54,981 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:37:54,981 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:37:54,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:37:54,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:37:54,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:37:54,982 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:37:54,982 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:37:54,982 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:37:54,982 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:37:54,982 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:37:54,983 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:37:54,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:37:54,983 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:37:54,983 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:37:54,983 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:37:54,984 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:37:54,984 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:37:54,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:37:54,984 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:37:54,984 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:37:54,985 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:37:55,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:37:55,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:37:55,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:37:55,069 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:37:55,070 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:37:55,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-10-24 21:37:55,133 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4ad23da7a/c553d6449548445d920795524fae76a8/FLAG871ddbc9e [2018-10-24 21:37:55,752 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:37:55,753 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-10-24 21:37:55,769 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4ad23da7a/c553d6449548445d920795524fae76a8/FLAG871ddbc9e [2018-10-24 21:37:55,794 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4ad23da7a/c553d6449548445d920795524fae76a8 [2018-10-24 21:37:55,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:37:55,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:37:55,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:37:55,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:37:55,817 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:37:55,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:37:55" (1/1) ... [2018-10-24 21:37:55,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bed1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:55, skipping insertion in model container [2018-10-24 21:37:55,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:37:55" (1/1) ... [2018-10-24 21:37:55,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:37:55,898 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:37:56,457 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:37:56,462 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:37:56,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:37:56,618 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:37:56,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56 WrapperNode [2018-10-24 21:37:56,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:37:56,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:37:56,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:37:56,620 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:37:56,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:37:56,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:37:56,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:37:56,874 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:37:56,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:56,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (1/1) ... [2018-10-24 21:37:57,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:37:57,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:37:57,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:37:57,002 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:37:57,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (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 21:37:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:37:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:37:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:37:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:37:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:37:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:37:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:37:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:38:00,692 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:38:00,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:38:00 BoogieIcfgContainer [2018-10-24 21:38:00,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:38:00,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:38:00,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:38:00,698 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:38:00,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:37:55" (1/3) ... [2018-10-24 21:38:00,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3f7c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:38:00, skipping insertion in model container [2018-10-24 21:38:00,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56" (2/3) ... [2018-10-24 21:38:00,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3f7c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:38:00, skipping insertion in model container [2018-10-24 21:38:00,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:38:00" (3/3) ... [2018-10-24 21:38:00,702 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label09_true-unreach-call_false-termination.c [2018-10-24 21:38:00,712 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:38:00,720 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:38:00,738 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:38:00,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:38:00,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:38:00,780 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:38:00,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:38:00,781 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:38:00,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:38:00,781 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:38:00,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:38:00,810 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 21:38:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 21:38:00,820 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:38:00,822 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] [2018-10-24 21:38:00,824 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:38:00,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:00,831 INFO L82 PathProgramCache]: Analyzing trace with hash 968801788, now seen corresponding path program 1 times [2018-10-24 21:38:00,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:38:00,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:00,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:38:00,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:00,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:38:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:38:01,350 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 21:38:01,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:38:01,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:38:01,353 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:38:01,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:38:01,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:38:01,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:38:01,380 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-10-24 21:38:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:38:04,475 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-10-24 21:38:04,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:38:04,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-24 21:38:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:38:04,502 INFO L225 Difference]: With dead ends: 894 [2018-10-24 21:38:04,503 INFO L226 Difference]: Without dead ends: 633 [2018-10-24 21:38:04,513 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 21:38:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-10-24 21:38:04,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-10-24 21:38:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-10-24 21:38:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 962 transitions. [2018-10-24 21:38:04,622 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 962 transitions. Word has length 52 [2018-10-24 21:38:04,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:38:04,623 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 962 transitions. [2018-10-24 21:38:04,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:38:04,623 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 962 transitions. [2018-10-24 21:38:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-24 21:38:04,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:38:04,635 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, 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, 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 21:38:04,635 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:38:04,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:04,636 INFO L82 PathProgramCache]: Analyzing trace with hash -415473421, now seen corresponding path program 1 times [2018-10-24 21:38:04,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:38:04,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:04,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:38:04,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:04,638 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:38:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:38:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:38:04,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:38:04,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:38:04,969 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:38:04,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:38:04,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:38:04,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:38:04,972 INFO L87 Difference]: Start difference. First operand 633 states and 962 transitions. Second operand 4 states. [2018-10-24 21:38:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:38:08,650 INFO L93 Difference]: Finished difference Result 2358 states and 3740 transitions. [2018-10-24 21:38:08,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:38:08,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-10-24 21:38:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:38:08,678 INFO L225 Difference]: With dead ends: 2358 [2018-10-24 21:38:08,679 INFO L226 Difference]: Without dead ends: 1731 [2018-10-24 21:38:08,688 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:38:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-10-24 21:38:08,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-10-24 21:38:08,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-10-24 21:38:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2514 transitions. [2018-10-24 21:38:08,804 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2514 transitions. Word has length 165 [2018-10-24 21:38:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:38:08,805 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2514 transitions. [2018-10-24 21:38:08,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:38:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2514 transitions. [2018-10-24 21:38:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-24 21:38:08,828 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:38:08,828 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, 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, 1, 1, 1, 1, 1, 1, 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 21:38:08,828 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:38:08,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:08,832 INFO L82 PathProgramCache]: Analyzing trace with hash 603968484, now seen corresponding path program 1 times [2018-10-24 21:38:08,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:38:08,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:08,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:38:08,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:08,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:38:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:38:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:38:09,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:38:09,494 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:38:09,495 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-10-24 21:38:09,497 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], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [630], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:38:09,567 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:38:09,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:38:11,732 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:38:11,733 INFO L272 AbstractInterpreter]: Visited 109 different actions 109 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:38:11,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:11,745 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:38:13,943 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 78.02% of their original sizes. [2018-10-24 21:38:13,944 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:38:14,150 INFO L413 sIntCurrentIteration]: We have 239 unified AI predicates [2018-10-24 21:38:14,151 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:38:14,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:38:14,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:38:14,152 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:38:14,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:38:14,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:38:14,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:38:14,154 INFO L87 Difference]: Start difference. First operand 1731 states and 2514 transitions. Second operand 7 states. [2018-10-24 21:38:16,594 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:38:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:38:43,925 INFO L93 Difference]: Finished difference Result 3641 states and 5264 transitions. [2018-10-24 21:38:43,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:38:43,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2018-10-24 21:38:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:38:43,938 INFO L225 Difference]: With dead ends: 3641 [2018-10-24 21:38:43,938 INFO L226 Difference]: Without dead ends: 1916 [2018-10-24 21:38:43,947 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:38:43,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-10-24 21:38:43,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2018-10-24 21:38:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-10-24 21:38:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2705 transitions. [2018-10-24 21:38:44,008 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2705 transitions. Word has length 240 [2018-10-24 21:38:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:38:44,009 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2705 transitions. [2018-10-24 21:38:44,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:38:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2705 transitions. [2018-10-24 21:38:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-10-24 21:38:44,018 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:38:44,019 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 21:38:44,019 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:38:44,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:44,020 INFO L82 PathProgramCache]: Analyzing trace with hash -350582061, now seen corresponding path program 1 times [2018-10-24 21:38:44,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:38:44,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:44,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:38:44,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:38:44,022 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:38:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:38:44,610 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:38:44,826 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:38:45,073 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:38:45,549 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 222 proven. 161 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:38:45,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:38:45,549 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:38:45,549 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 326 with the following transitions: [2018-10-24 21:38:45,550 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], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [630], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:38:45,556 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:38:45,556 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:38:48,718 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:38:48,718 INFO L272 AbstractInterpreter]: Visited 113 different actions 219 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:38:48,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:38:48,725 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:38:51,806 INFO L232 lantSequenceWeakener]: Weakened 88 states. On average, predicates are now at 77.79% of their original sizes. [2018-10-24 21:38:51,806 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:39:27,507 INFO L413 sIntCurrentIteration]: We have 324 unified AI predicates [2018-10-24 21:39:27,508 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:39:27,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:39:27,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2018-10-24 21:39:27,509 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:39:27,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 21:39:27,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 21:39:27,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-10-24 21:39:27,511 INFO L87 Difference]: Start difference. First operand 1914 states and 2705 transitions. Second operand 18 states. [2018-10-24 21:40:30,203 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:42:00,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 21:42:00,637 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:42:00,643 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:42:00,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:42:00 BoogieIcfgContainer [2018-10-24 21:42:00,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:42:00,645 INFO L168 Benchmark]: Toolchain (without parser) took 244836.33 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 904.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,646 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-10-24 21:42:00,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,649 INFO L168 Benchmark]: Boogie Preprocessor took 127.92 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,650 INFO L168 Benchmark]: RCFGBuilder took 3691.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,651 INFO L168 Benchmark]: TraceAbstraction took 239950.00 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 817.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:42:00,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 808.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 253.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.92 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3691.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239950.00 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 817.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was constructing difference of abstraction (1914states) and FLOYD_HOARE automaton (currently 18 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (2895 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 239.8s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 189.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 632 SDtfs, 3082 SDslu, 548 SDs, 0 SdLazy, 4795 SolverSat, 814 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 581 GetRequests, 509 SyntacticMatches, 40 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 37.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1914occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.995659252966767 AbsIntWeakeningRatio, 0.10301953818827708 AbsIntAvgWeakeningVarsNumRemoved, 587.8880994671404 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 778 ConstructedInterpolants, 0 QuantifiedInterpolants, 1444707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 444/607 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown