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/Problem01_label25_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:37:20,744 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:37:20,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:37:20,758 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:37:20,758 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:37:20,759 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:37:20,760 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:37:20,762 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:37:20,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:37:20,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:37:20,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:37:20,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:37:20,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:37:20,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:37:20,769 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:37:20,770 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:37:20,771 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:37:20,773 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:37:20,775 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:37:20,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:37:20,777 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:37:20,779 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:37:20,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 00:37:20,790 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 [2018-10-27 00:37:20,805 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:37:20,805 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:37:20,806 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:37:20,806 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:37:20,806 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:37:20,807 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:37:20,807 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:37:20,807 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:37:20,807 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:37:20,807 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:37:20,807 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:37:20,808 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:37:20,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:37:20,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:37:20,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:37:20,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:37:20,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:37:20,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:37:20,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:37:20,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:37:20,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:37:20,811 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:37:20,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:37:20,811 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:37:20,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:37:20,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:37:20,812 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:37:20,812 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:37:20,812 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:37:20,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:37:20,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:37:20,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:37:20,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:37:20,895 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:37:20,896 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label25_true-unreach-call_false-termination.c [2018-10-27 00:37:20,966 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe0b71c01/f7b1fc95d58b426ab69bceb75bb80983/FLAG88353d2e4 [2018-10-27 00:37:21,495 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:37:21,496 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label25_true-unreach-call_false-termination.c [2018-10-27 00:37:21,515 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe0b71c01/f7b1fc95d58b426ab69bceb75bb80983/FLAG88353d2e4 [2018-10-27 00:37:21,528 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe0b71c01/f7b1fc95d58b426ab69bceb75bb80983 [2018-10-27 00:37:21,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:37:21,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:37:21,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:37:21,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:37:21,546 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:37:21,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:37:21" (1/1) ... [2018-10-27 00:37:21,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf5b06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:21, skipping insertion in model container [2018-10-27 00:37:21,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:37:21" (1/1) ... [2018-10-27 00:37:21,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:37:21,646 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:37:22,079 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:37:22,084 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:37:22,239 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:37:22,260 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:37:22,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22 WrapperNode [2018-10-27 00:37:22,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:37:22,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:37:22,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:37:22,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:37:22,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:37:22,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:37:22,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:37:22,465 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:37:22,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (1/1) ... [2018-10-27 00:37:22,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:37:22,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:37:22,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:37:22,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:37:22,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (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 [2018-10-27 00:37:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:37:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:37:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:37:22,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:37:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:37:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:37:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:37:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:37:26,019 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:37:26,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:37:26 BoogieIcfgContainer [2018-10-27 00:37:26,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:37:26,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:37:26,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:37:26,025 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:37:26,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:37:21" (1/3) ... [2018-10-27 00:37:26,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383e4cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:37:26, skipping insertion in model container [2018-10-27 00:37:26,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:37:22" (2/3) ... [2018-10-27 00:37:26,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383e4cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:37:26, skipping insertion in model container [2018-10-27 00:37:26,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:37:26" (3/3) ... [2018-10-27 00:37:26,029 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label25_true-unreach-call_false-termination.c [2018-10-27 00:37:26,040 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:37:26,048 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:37:26,066 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:37:26,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:37:26,103 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:37:26,103 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:37:26,103 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:37:26,103 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:37:26,104 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:37:26,104 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:37:26,104 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:37:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-27 00:37:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-27 00:37:26,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:37:26,146 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:37:26,149 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:37:26,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:37:26,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1106686112, now seen corresponding path program 1 times [2018-10-27 00:37:26,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:37:26,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:26,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:37:26,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:26,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:37:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:26,838 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:37:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:37:26,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:37:26,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:37:26,957 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:37:26,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:37:26,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:37:26,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:37:26,985 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-27 00:37:28,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:37:28,680 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-27 00:37:28,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:37:28,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-10-27 00:37:28,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:37:28,702 INFO L225 Difference]: With dead ends: 550 [2018-10-27 00:37:28,702 INFO L226 Difference]: Without dead ends: 340 [2018-10-27 00:37:28,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:37:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-27 00:37:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-27 00:37:28,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-27 00:37:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-10-27 00:37:28,820 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 126 [2018-10-27 00:37:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:37:28,822 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-10-27 00:37:28,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:37:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-10-27 00:37:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-27 00:37:28,840 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:37:28,841 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:37:28,841 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:37:28,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:37:28,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1635455447, now seen corresponding path program 1 times [2018-10-27 00:37:28,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:37:28,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:28,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:37:28,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:28,847 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:37:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:29,080 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:37:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:37:29,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:37:29,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:37:29,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:37:29,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:37:29,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:37:29,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:37:29,234 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-10-27 00:37:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:37:30,989 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-10-27 00:37:30,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:37:30,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-10-27 00:37:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:37:31,005 INFO L225 Difference]: With dead ends: 1079 [2018-10-27 00:37:31,006 INFO L226 Difference]: Without dead ends: 745 [2018-10-27 00:37:31,014 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:37:31,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-10-27 00:37:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-10-27 00:37:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-10-27 00:37:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-10-27 00:37:31,067 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 136 [2018-10-27 00:37:31,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:37:31,067 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-10-27 00:37:31,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:37:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-10-27 00:37:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-27 00:37:31,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:37:31,072 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:37:31,072 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:37:31,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:37:31,074 INFO L82 PathProgramCache]: Analyzing trace with hash 852389443, now seen corresponding path program 1 times [2018-10-27 00:37:31,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:37:31,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:31,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:37:31,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:37:31,075 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:37:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:37:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:37:31,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:37:31,466 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:37:31,467 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-10-27 00:37:31,470 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [49], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [645], [647], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 00:37:31,543 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:37:31,543 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:37:40,894 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:37:40,895 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-10-27 00:37:40,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:37:40,906 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:37:43,541 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 79.74% of their original sizes. [2018-10-27 00:37:43,542 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:37:44,684 INFO L415 sIntCurrentIteration]: We unified 145 AI predicates to 145 [2018-10-27 00:37:44,684 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:37:44,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:37:44,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-10-27 00:37:44,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:37:44,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-27 00:37:44,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-27 00:37:44,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-27 00:37:44,688 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 12 states. [2018-10-27 00:38:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:00,203 INFO L93 Difference]: Finished difference Result 1521 states and 2423 transitions. [2018-10-27 00:38:00,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 00:38:00,204 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 146 [2018-10-27 00:38:00,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:00,209 INFO L225 Difference]: With dead ends: 1521 [2018-10-27 00:38:00,209 INFO L226 Difference]: Without dead ends: 794 [2018-10-27 00:38:00,212 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-10-27 00:38:00,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2018-10-27 00:38:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2018-10-27 00:38:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-10-27 00:38:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1232 transitions. [2018-10-27 00:38:00,257 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1232 transitions. Word has length 146 [2018-10-27 00:38:00,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:00,258 INFO L481 AbstractCegarLoop]: Abstraction has 794 states and 1232 transitions. [2018-10-27 00:38:00,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-27 00:38:00,258 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1232 transitions. [2018-10-27 00:38:00,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-27 00:38:00,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:00,262 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:38:00,263 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:00,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:00,265 INFO L82 PathProgramCache]: Analyzing trace with hash -768658678, now seen corresponding path program 1 times [2018-10-27 00:38:00,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:38:00,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:00,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:00,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:00,267 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:38:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:00,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:38:00,738 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:38:00,738 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-10-27 00:38:00,739 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [645], [647], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 00:38:00,752 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:38:00,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:38:39,903 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:38:39,903 INFO L272 AbstractInterpreter]: Visited 130 different actions 195 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-27 00:38:39,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:39,911 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:38:45,019 INFO L227 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 80.86% of their original sizes. [2018-10-27 00:38:45,019 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:40:22,788 INFO L415 sIntCurrentIteration]: We unified 147 AI predicates to 147 [2018-10-27 00:40:22,788 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:40:22,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:40:22,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-10-27 00:40:22,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:40:22,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-27 00:40:22,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-27 00:40:22,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2018-10-27 00:40:22,790 INFO L87 Difference]: Start difference. First operand 794 states and 1232 transitions. Second operand 23 states. Received shutdown request... [2018-10-27 00:41:41,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 00:41:41,769 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:41:41,775 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:41:41,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:41:41 BoogieIcfgContainer [2018-10-27 00:41:41,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:41:41,776 INFO L168 Benchmark]: Toolchain (without parser) took 260235.50 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 297.0 MB. Max. memory is 7.1 GB. [2018-10-27 00:41:41,777 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:41:41,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.91 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-27 00:41:41,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:41:41,779 INFO L168 Benchmark]: Boogie Preprocessor took 79.41 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:41:41,780 INFO L168 Benchmark]: RCFGBuilder took 3476.04 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: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:41:41,781 INFO L168 Benchmark]: TraceAbstraction took 255753.77 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -857.5 MB). Peak memory consumption was 209.5 MB. Max. memory is 7.1 GB. [2018-10-27 00:41:41,785 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.91 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 201.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.41 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3476.04 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: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255753.77 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.1 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -857.5 MB). Peak memory consumption was 209.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 533]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 533). Cancelled while BasicCegarLoop was constructing difference of abstraction (794states) and FLOYD_HOARE automaton (currently 20 states, 23 states before enhancement),while ReachableStatesComputation was computing reachable states (1407 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 255.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 98.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 682 SDtfs, 2022 SDslu, 818 SDs, 0 SdLazy, 3829 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 324 GetRequests, 243 SyntacticMatches, 25 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 105.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 48.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9945985076289126 AbsIntWeakeningRatio, 0.2191780821917808 AbsIntAvgWeakeningVarsNumRemoved, 1097.7945205479452 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 552 ConstructedInterpolants, 0 QuantifiedInterpolants, 199614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 31/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown