java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 13:41:03,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 13:41:03,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 13:41:03,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 13:41:03,801 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 13:41:03,802 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 13:41:03,803 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 13:41:03,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 13:41:03,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 13:41:03,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 13:41:03,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 13:41:03,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 13:41:03,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 13:41:03,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 13:41:03,810 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 13:41:03,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 13:41:03,811 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 13:41:03,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 13:41:03,828 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 13:41:03,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 13:41:03,831 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 13:41:03,832 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 13:41:03,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 13:41:03,854 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 13:41:03,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 13:41:03,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 13:41:03,878 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 13:41:03,882 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 13:41:03,882 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 13:41:03,883 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 13:41:03,883 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 13:41:03,883 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 13:41:03,883 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 13:41:03,884 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 13:41:03,886 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 13:41:03,886 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 13:41:03,886 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 13:41:03,887 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 13:41:03,887 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 13:41:03,887 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 13:41:03,887 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 13:41:03,887 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 13:41:03,887 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 13:41:03,888 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 13:41:03,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 13:41:03,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 13:41:03,888 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 13:41:03,888 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 13:41:03,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 13:41:03,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 13:41:03,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 13:41:03,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 13:41:03,973 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 13:41:03,974 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-07-22 13:41:04,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f33d29eea/2967e78a23f4400397bfa21a44d4e873/FLAG094545a89 [2018-07-22 13:41:04,788 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 13:41:04,789 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-07-22 13:41:04,830 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f33d29eea/2967e78a23f4400397bfa21a44d4e873/FLAG094545a89 [2018-07-22 13:41:04,844 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f33d29eea/2967e78a23f4400397bfa21a44d4e873 [2018-07-22 13:41:04,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 13:41:04,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 13:41:04,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 13:41:04,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 13:41:04,871 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 13:41:04,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:41:04" (1/1) ... [2018-07-22 13:41:04,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18723aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:04, skipping insertion in model container [2018-07-22 13:41:04,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:41:04" (1/1) ... [2018-07-22 13:41:05,132 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 13:41:05,694 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 13:41:05,710 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 13:41:06,201 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 13:41:06,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06 WrapperNode [2018-07-22 13:41:06,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 13:41:06,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 13:41:06,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 13:41:06,290 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 13:41:06,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 13:41:06,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 13:41:06,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 13:41:06,498 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 13:41:06,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:06,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:07,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... [2018-07-22 13:41:07,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 13:41:07,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 13:41:07,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 13:41:07,045 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 13:41:07,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (1/1) ... No working directory specified, using /storage/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 [2018-07-22 13:41:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 13:41:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 13:41:07,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 13:41:15,567 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 13:41:15,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:41:15 BoogieIcfgContainer [2018-07-22 13:41:15,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 13:41:15,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 13:41:15,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 13:41:15,573 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 13:41:15,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:41:04" (1/3) ... [2018-07-22 13:41:15,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388650fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:41:15, skipping insertion in model container [2018-07-22 13:41:15,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:41:06" (2/3) ... [2018-07-22 13:41:15,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388650fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:41:15, skipping insertion in model container [2018-07-22 13:41:15,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:41:15" (3/3) ... [2018-07-22 13:41:15,577 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label02_true-unreach-call.c [2018-07-22 13:41:15,586 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 13:41:15,595 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 13:41:15,646 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 13:41:15,647 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 13:41:15,647 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 13:41:15,647 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 13:41:15,647 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 13:41:15,647 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 13:41:15,647 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 13:41:15,647 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 13:41:15,648 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 13:41:15,677 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2018-07-22 13:41:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-22 13:41:15,686 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 13:41:15,687 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 13:41:15,688 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 13:41:15,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1515441142, now seen corresponding path program 1 times [2018-07-22 13:41:15,694 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 13:41:15,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 13:41:15,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 13:41:15,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 13:41:15,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 13:41:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 13:41:16,161 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-22 13:41:16,424 WARN L169 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-07-22 13:41:16,703 WARN L169 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2018-07-22 13:41:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 13:41:16,804 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 13:41:16,805 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 13:41:16,808 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 13:41:16,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 13:41:16,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 13:41:16,827 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 6 states. [2018-07-22 13:41:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 13:41:23,195 INFO L93 Difference]: Finished difference Result 1793 states and 3428 transitions. [2018-07-22 13:41:23,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 13:41:23,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-07-22 13:41:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 13:41:23,232 INFO L225 Difference]: With dead ends: 1793 [2018-07-22 13:41:23,233 INFO L226 Difference]: Without dead ends: 1386 [2018-07-22 13:41:23,239 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-22 13:41:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-07-22 13:41:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2018-07-22 13:41:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2018-07-22 13:41:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2215 transitions. [2018-07-22 13:41:23,390 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2215 transitions. Word has length 62 [2018-07-22 13:41:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 13:41:23,391 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2215 transitions. [2018-07-22 13:41:23,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 13:41:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2215 transitions. [2018-07-22 13:41:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-22 13:41:23,404 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 13:41:23,404 INFO L358 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, 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] [2018-07-22 13:41:23,405 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 13:41:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1276211193, now seen corresponding path program 1 times [2018-07-22 13:41:23,405 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 13:41:23,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 13:41:23,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 13:41:23,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 13:41:23,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 13:41:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 13:41:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 13:41:23,948 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 13:41:23,949 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 13:41:23,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 13:41:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 13:41:24,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 13:41:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 13:41:24,703 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 13:41:24,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-22 13:41:24,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 13:41:24,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 13:41:24,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-22 13:41:24,705 INFO L87 Difference]: Start difference. First operand 1386 states and 2215 transitions. Second operand 6 states. [2018-07-22 13:41:24,888 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-22 13:44:54,924 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:333) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:257) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:662) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Broken pipe at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:326) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-07-22 13:44:54,928 INFO L168 Benchmark]: Toolchain (without parser) took 230072.82 ms. Allocated memory was 308.8 MB in the beginning and 710.9 MB in the end (delta: 402.1 MB). Free memory was 247.1 MB in the beginning and 473.8 MB in the end (delta: -226.8 MB). Peak memory consumption was 175.4 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,929 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 13:44:54,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1425.77 ms. Allocated memory was 308.8 MB in the beginning and 335.0 MB in the end (delta: 26.2 MB). Free memory was 247.1 MB in the beginning and 265.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 207.39 ms. Allocated memory is still 335.0 MB. Free memory was 265.5 MB in the beginning and 240.1 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,934 INFO L168 Benchmark]: Boogie Preprocessor took 547.12 ms. Allocated memory was 335.0 MB in the beginning and 549.5 MB in the end (delta: 214.4 MB). Free memory was 240.1 MB in the beginning and 498.8 MB in the end (delta: -258.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,934 INFO L168 Benchmark]: RCFGBuilder took 8523.75 ms. Allocated memory was 549.5 MB in the beginning and 550.0 MB in the end (delta: 524.3 kB). Free memory was 498.8 MB in the beginning and 406.2 MB in the end (delta: 92.6 MB). Peak memory consumption was 202.8 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,935 INFO L168 Benchmark]: TraceAbstraction took 219358.17 ms. Allocated memory was 550.0 MB in the beginning and 710.9 MB in the end (delta: 161.0 MB). Free memory was 406.2 MB in the beginning and 473.8 MB in the end (delta: -67.6 MB). Peak memory consumption was 93.3 MB. Max. memory is 5.3 GB. [2018-07-22 13:44:54,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 308.8 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1425.77 ms. Allocated memory was 308.8 MB in the beginning and 335.0 MB in the end (delta: 26.2 MB). Free memory was 247.1 MB in the beginning and 265.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 207.39 ms. Allocated memory is still 335.0 MB. Free memory was 265.5 MB in the beginning and 240.1 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 547.12 ms. Allocated memory was 335.0 MB in the beginning and 549.5 MB in the end (delta: 214.4 MB). Free memory was 240.1 MB in the beginning and 498.8 MB in the end (delta: -258.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 8523.75 ms. Allocated memory was 549.5 MB in the beginning and 550.0 MB in the end (delta: 524.3 kB). Free memory was 498.8 MB in the beginning and 406.2 MB in the end (delta: 92.6 MB). Peak memory consumption was 202.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 219358.17 ms. Allocated memory was 550.0 MB in the beginning and 710.9 MB in the end (delta: 161.0 MB). Free memory was 406.2 MB in the beginning and 473.8 MB in the end (delta: -67.6 MB). Peak memory consumption was 93.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label02_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_13-44-54-963.csv Received shutdown request...