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/Problem02_label27_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:50:52,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:50:52,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:50:52,754 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:50:52,754 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:50:52,755 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:50:52,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:50:52,758 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:50:52,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:50:52,761 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:50:52,762 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:50:52,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:50:52,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:50:52,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:50:52,770 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:50:52,771 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:50:52,775 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:50:52,777 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:50:52,778 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:50:52,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:50:52,783 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:50:52,784 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:50:52,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 00:50:52,803 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 00:50:52,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:50:52,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:50:52,834 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:50:52,834 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:50:52,834 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:50:52,834 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:50:52,834 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:50:52,835 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:50:52,835 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:50:52,836 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:50:52,836 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:50:52,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:50:52,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:50:52,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:50:52,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:50:52,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:50:52,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:50:52,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:50:52,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:50:52,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:50:52,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:50:52,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:50:52,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:50:52,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:50:52,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:50:52,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:50:52,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:50:52,841 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:50:52,842 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:50:52,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:50:52,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:50:52,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:50:52,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:50:52,913 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:50:52,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label27_true-unreach-call_false-termination.c [2018-10-27 00:50:52,973 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6bb35750f/9fa116632e634325a668d0acb23c8a95/FLAGfd274a5e7 [2018-10-27 00:50:53,568 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:50:53,569 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label27_true-unreach-call_false-termination.c [2018-10-27 00:50:53,581 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6bb35750f/9fa116632e634325a668d0acb23c8a95/FLAGfd274a5e7 [2018-10-27 00:50:53,597 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6bb35750f/9fa116632e634325a668d0acb23c8a95 [2018-10-27 00:50:53,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:50:53,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:50:53,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:50:53,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:50:53,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:50:53,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:53" (1/1) ... [2018-10-27 00:50:53,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68109397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:53, skipping insertion in model container [2018-10-27 00:50:53,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:53" (1/1) ... [2018-10-27 00:50:53,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:50:53,686 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:50:54,157 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:50:54,162 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:50:54,313 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:50:54,338 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:50:54,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54 WrapperNode [2018-10-27 00:50:54,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:50:54,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:50:54,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:50:54,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:50:54,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:50:54,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:50:54,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:50:54,534 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:50:54,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... [2018-10-27 00:50:54,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:50:54,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:50:54,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:50:54,613 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:50:54,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:50:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:50:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:50:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:50:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:50:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:50:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:50:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:50:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:50:57,857 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:50:57,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:57 BoogieIcfgContainer [2018-10-27 00:50:57,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:50:57,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:50:57,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:50:57,874 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:50:57,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:50:53" (1/3) ... [2018-10-27 00:50:57,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0ea61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:57, skipping insertion in model container [2018-10-27 00:50:57,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:54" (2/3) ... [2018-10-27 00:50:57,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0ea61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:57, skipping insertion in model container [2018-10-27 00:50:57,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:57" (3/3) ... [2018-10-27 00:50:57,879 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label27_true-unreach-call_false-termination.c [2018-10-27 00:50:57,890 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:50:57,905 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:50:57,926 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:50:57,976 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:50:57,976 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:50:57,977 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:50:57,977 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:50:57,977 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:50:57,977 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:50:57,978 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:50:57,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:50:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-27 00:50:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-27 00:50:58,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:50:58,027 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] [2018-10-27 00:50:58,030 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:50:58,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:50:58,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1664661616, now seen corresponding path program 1 times [2018-10-27 00:50:58,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:50:58,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:58,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:50:58,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:58,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:50:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:50:58,678 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 00:50:58,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:50:58,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:50:58,682 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:50:58,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:50:58,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:50:58,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:50:58,712 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-27 00:51:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:51:00,707 INFO L93 Difference]: Finished difference Result 621 states and 1061 transitions. [2018-10-27 00:51:00,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:51:00,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2018-10-27 00:51:00,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:51:00,731 INFO L225 Difference]: With dead ends: 621 [2018-10-27 00:51:00,731 INFO L226 Difference]: Without dead ends: 382 [2018-10-27 00:51:00,738 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:51:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-10-27 00:51:00,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2018-10-27 00:51:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-27 00:51:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 641 transitions. [2018-10-27 00:51:00,815 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 641 transitions. Word has length 102 [2018-10-27 00:51:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:51:00,816 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 641 transitions. [2018-10-27 00:51:00,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:51:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 641 transitions. [2018-10-27 00:51:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-27 00:51:00,824 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:51:00,824 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:51:00,824 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:51:00,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:51:00,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1726268791, now seen corresponding path program 1 times [2018-10-27 00:51:00,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:51:00,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:51:00,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:51:00,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:51:00,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:51:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:51:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:51:01,197 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:51:01,197 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:51:01,198 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2018-10-27 00:51:01,200 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [487], [489], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-27 00:51:01,285 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:51:01,286 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:51:30,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:51:30,639 INFO L272 AbstractInterpreter]: Visited 105 different actions 204 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-27 00:51:30,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:51:30,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:51:35,232 INFO L227 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 84.62% of their original sizes. [2018-10-27 00:51:35,232 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:54:04,065 INFO L415 sIntCurrentIteration]: We unified 115 AI predicates to 115 [2018-10-27 00:54:04,065 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:54:04,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:54:04,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-10-27 00:54:04,067 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:54:04,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 00:54:04,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 00:54:04,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-10-27 00:54:04,069 INFO L87 Difference]: Start difference. First operand 380 states and 641 transitions. Second operand 17 states. Received shutdown request... [2018-10-27 00:55:19,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-27 00:55:19,826 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:55:19,831 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:55:19,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:55:19 BoogieIcfgContainer [2018-10-27 00:55:19,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:55:19,832 INFO L168 Benchmark]: Toolchain (without parser) took 266223.27 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,836 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:55:19,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.19 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 685.8 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -763.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,839 INFO L168 Benchmark]: Boogie Preprocessor took 78.02 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,841 INFO L168 Benchmark]: RCFGBuilder took 3245.77 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,841 INFO L168 Benchmark]: TraceAbstraction took 261967.32 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 633.9 MB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -722.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-27 00:55:19,847 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 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 194.19 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 685.8 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -763.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.02 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3245.77 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261967.32 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 633.9 MB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -722.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 457]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 457). Cancelled while BasicCegarLoop was constructing difference of abstraction (380states) and FLOYD_HOARE automaton (currently 21 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 24 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 261.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 77.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 395 SDslu, 56 SDs, 0 SdLazy, 751 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 128 GetRequests, 62 SyntacticMatches, 42 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 153.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=380occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9933391056960849 AbsIntWeakeningRatio, 0.23478260869565218 AbsIntAvgWeakeningVarsNumRemoved, 821.3652173913043 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 97813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/11 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown