java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:40:59,822 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:40:59,824 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:40:59,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:40:59,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:40:59,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:40:59,840 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:40:59,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:40:59,846 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:40:59,847 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:40:59,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:40:59,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:40:59,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:40:59,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:40:59,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:40:59,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:40:59,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:40:59,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:40:59,867 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:40:59,869 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:40:59,871 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:40:59,873 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:40:59,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 23:40:59,892 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-23 23:40:59,919 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:40:59,919 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:40:59,920 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:40:59,921 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:40:59,921 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:40:59,922 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:40:59,922 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:40:59,923 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:40:59,923 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:40:59,923 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:40:59,923 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:40:59,923 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:40:59,924 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:40:59,924 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:40:59,924 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:40:59,924 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:40:59,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:40:59,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:40:59,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:40:59,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:40:59,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:40:59,927 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:40:59,927 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:40:59,927 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:40:59,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:40:59,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:40:59,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:40:59,928 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:40:59,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:40:59,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:40:59,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:40:59,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:40:59,997 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:40:59,998 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-07-23 23:41:00,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5b7fd7/9cc9bc6bc8714cae85dcdbe9b7bdab13/FLAGeb793efad [2018-07-23 23:41:00,464 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:41:00,464 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008_false-unreach-call_false-termination.i [2018-07-23 23:41:00,471 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5b7fd7/9cc9bc6bc8714cae85dcdbe9b7bdab13/FLAGeb793efad [2018-07-23 23:41:00,486 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06d5b7fd7/9cc9bc6bc8714cae85dcdbe9b7bdab13 [2018-07-23 23:41:00,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:41:00,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:41:00,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:41:00,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:41:00,505 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:41:00,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600c846f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00, skipping insertion in model container [2018-07-23 23:41:00,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,667 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:41:00,707 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:41:00,725 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:41:00,738 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:41:00,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00 WrapperNode [2018-07-23 23:41:00,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:41:00,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:41:00,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:41:00,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:41:00,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:41:00,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:41:00,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:41:00,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:41:00,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... [2018-07-23 23:41:00,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:41:00,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:41:00,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:41:00,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:41:00,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:41:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:41:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:41:01,317 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:41:01,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:41:01 BoogieIcfgContainer [2018-07-23 23:41:01,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:41:01,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:41:01,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:41:01,323 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:41:01,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:41:00" (1/3) ... [2018-07-23 23:41:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:41:01, skipping insertion in model container [2018-07-23 23:41:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:41:00" (2/3) ... [2018-07-23 23:41:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:41:01, skipping insertion in model container [2018-07-23 23:41:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:41:01" (3/3) ... [2018-07-23 23:41:01,327 INFO L112 eAbstractionObserver]: Analyzing ICFG gcnr2008_false-unreach-call_false-termination.i [2018-07-23 23:41:01,338 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:41:01,347 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:41:01,418 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:41:01,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:41:01,419 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:41:01,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:41:01,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:41:01,419 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:41:01,420 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:41:01,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:41:01,420 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:41:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-07-23 23:41:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 23:41:01,443 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:41:01,444 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-23 23:41:01,444 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:41:01,450 INFO L82 PathProgramCache]: Analyzing trace with hash 890522599, now seen corresponding path program 1 times [2018-07-23 23:41:01,452 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:41:01,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:41:01,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:41:01,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:41:01,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:41:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:41:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:41:01,585 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:41:01,586 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:41:01,590 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:41:01,606 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:41:01,607 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:41:01,610 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-07-23 23:41:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:41:01,628 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2018-07-23 23:41:01,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:41:01,630 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-07-23 23:41:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:41:01,642 INFO L225 Difference]: With dead ends: 26 [2018-07-23 23:41:01,643 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 23:41:01,646 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:41:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 23:41:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 23:41:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 23:41:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-07-23 23:41:01,691 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 6 [2018-07-23 23:41:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:41:01,691 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-07-23 23:41:01,692 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:41:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-07-23 23:41:01,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 23:41:01,693 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:41:01,693 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:41:01,693 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:41:01,693 INFO L82 PathProgramCache]: Analyzing trace with hash 147083492, now seen corresponding path program 1 times [2018-07-23 23:41:01,694 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:41:01,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:41:01,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:41:01,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:41:01,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:41:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 23:41:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 23:41:01,743 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-23 23:41:01,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:41:01 BoogieIcfgContainer [2018-07-23 23:41:01,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:41:01,766 INFO L168 Benchmark]: Toolchain (without parser) took 1268.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:41:01,768 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 23:41:01,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.92 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:41:01,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.83 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. [2018-07-23 23:41:01,770 INFO L168 Benchmark]: Boogie Preprocessor took 27.30 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. [2018-07-23 23:41:01,771 INFO L168 Benchmark]: RCFGBuilder took 487.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-07-23 23:41:01,772 INFO L168 Benchmark]: TraceAbstraction took 445.33 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:41:01,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 257.92 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.83 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. * Boogie Preprocessor took 27.30 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. * RCFGBuilder took 487.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 445.33 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int x,y,z,w; [L12] EXPR w = 0 [L12] EXPR z = w = 0 [L12] EXPR y = z = w = 0 [L12] x = y = z = w = 0 [L13] COND FALSE !(__VERIFIER_nondet_int() && y < 10000) [L28] CALL __VERIFIER_assert(x >= 4 && y <= 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcnr2008_false-unreach-call_false-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-41-01-791.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcnr2008_false-unreach-call_false-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-41-01-791.csv Received shutdown request...