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/Problem17_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:53:36,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:53:36,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:53:36,819 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:53:36,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:53:36,820 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:53:36,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:53:36,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:53:36,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:53:36,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:53:36,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:53:36,827 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:53:36,828 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:53:36,829 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:53:36,831 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:53:36,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:53:36,832 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:53:36,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:53:36,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:53:36,838 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:53:36,839 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:53:36,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:53:36,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:53:36,858 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:53:36,889 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:53:36,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:53:36,890 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:53:36,890 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:53:36,890 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:53:36,891 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:53:36,891 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:53:36,891 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:53:36,891 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:53:36,891 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:53:36,892 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:53:36,892 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:53:36,893 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:53:36,893 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:53:36,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:53:36,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:53:36,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:53:36,894 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:53:36,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:53:36,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:53:36,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:53:36,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:53:36,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:53:36,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:53:36,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:53:36,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:53:36,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:53:36,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:53:36,896 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:53:36,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:53:36,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:53:36,896 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:53:36,896 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:53:36,897 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:53:36,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:53:36,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:53:36,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:53:36,963 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:53:36,963 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:53:36,964 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label40_false-unreach-call.c [2018-10-24 18:53:37,030 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/45766cedf/e657789989ca49d2bc1e8882a8a5f4df/FLAG71ab14b0b [2018-10-24 18:53:37,732 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:53:37,733 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label40_false-unreach-call.c [2018-10-24 18:53:37,760 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/45766cedf/e657789989ca49d2bc1e8882a8a5f4df/FLAG71ab14b0b [2018-10-24 18:53:37,777 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/45766cedf/e657789989ca49d2bc1e8882a8a5f4df [2018-10-24 18:53:37,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:53:37,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:53:37,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:53:37,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:53:37,796 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:53:37,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:37" (1/1) ... [2018-10-24 18:53:37,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614a20c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:37, skipping insertion in model container [2018-10-24 18:53:37,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:37" (1/1) ... [2018-10-24 18:53:37,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:53:37,936 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:53:38,968 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:53:38,973 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:53:39,412 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:53:39,434 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:53:39,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39 WrapperNode [2018-10-24 18:53:39,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:53:39,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:53:39,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:53:39,436 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:53:39,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:39,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:39,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:53:39,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:53:39,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:53:39,917 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:53:39,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:39,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:39,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:39,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:40,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:40,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:40,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... [2018-10-24 18:53:40,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:53:40,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:53:40,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:53:40,210 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:53:40,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:53:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:53:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:53:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:53:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:53:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:53:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:53:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:53:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:53:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:53:40,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:53:51,588 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:53:51,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:51 BoogieIcfgContainer [2018-10-24 18:53:51,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:53:51,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:53:51,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:53:51,597 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:53:51,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:53:37" (1/3) ... [2018-10-24 18:53:51,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaf2d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:51, skipping insertion in model container [2018-10-24 18:53:51,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:39" (2/3) ... [2018-10-24 18:53:51,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaf2d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:51, skipping insertion in model container [2018-10-24 18:53:51,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:51" (3/3) ... [2018-10-24 18:53:51,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label40_false-unreach-call.c [2018-10-24 18:53:51,613 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:53:51,631 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:53:51,656 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:53:51,714 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:53:51,715 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:53:51,715 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:53:51,715 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:53:51,715 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:53:51,715 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:53:51,715 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:53:51,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:53:51,776 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:53:51,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-24 18:53:51,787 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:51,788 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] [2018-10-24 18:53:51,793 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:51,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:51,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1682620046, now seen corresponding path program 1 times [2018-10-24 18:53:51,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:51,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:51,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:51,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:51,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:52,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:52,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:53:52,347 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:52,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:53:52,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:53:52,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:53:52,372 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:54:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:54:02,675 INFO L93 Difference]: Finished difference Result 2125 states and 3954 transitions. [2018-10-24 18:54:02,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:54:02,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-10-24 18:54:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:54:02,711 INFO L225 Difference]: With dead ends: 2125 [2018-10-24 18:54:02,712 INFO L226 Difference]: Without dead ends: 1515 [2018-10-24 18:54:02,723 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:54:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2018-10-24 18:54:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1043. [2018-10-24 18:54:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-10-24 18:54:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1647 transitions. [2018-10-24 18:54:02,847 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1647 transitions. Word has length 29 [2018-10-24 18:54:02,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:54:02,848 INFO L481 AbstractCegarLoop]: Abstraction has 1043 states and 1647 transitions. [2018-10-24 18:54:02,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:54:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1647 transitions. [2018-10-24 18:54:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 18:54:02,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:54:02,854 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:54:02,854 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:54:02,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:02,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1607791969, now seen corresponding path program 1 times [2018-10-24 18:54:02,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:54:02,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:02,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:02,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:02,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:54:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:54:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:54:03,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:54:03,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:54:03,141 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:54:03,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:54:03,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:54:03,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:54:03,144 INFO L87 Difference]: Start difference. First operand 1043 states and 1647 transitions. Second operand 5 states. [2018-10-24 18:54:13,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:54:13,219 INFO L93 Difference]: Finished difference Result 3017 states and 4847 transitions. [2018-10-24 18:54:13,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:54:13,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-10-24 18:54:13,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:54:13,235 INFO L225 Difference]: With dead ends: 3017 [2018-10-24 18:54:13,235 INFO L226 Difference]: Without dead ends: 1980 [2018-10-24 18:54:13,239 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:54:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2018-10-24 18:54:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1954. [2018-10-24 18:54:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-10-24 18:54:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2892 transitions. [2018-10-24 18:54:13,325 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2892 transitions. Word has length 101 [2018-10-24 18:54:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:54:13,325 INFO L481 AbstractCegarLoop]: Abstraction has 1954 states and 2892 transitions. [2018-10-24 18:54:13,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:54:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2892 transitions. [2018-10-24 18:54:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 18:54:13,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:54:13,338 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:54:13,339 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:54:13,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash 221393273, now seen corresponding path program 1 times [2018-10-24 18:54:13,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:54:13,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:13,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:13,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:54:13,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:54:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:54:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:54:13,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:54:13,775 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:54:13,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 105 with the following transitions: [2018-10-24 18:54:13,778 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [842], [844], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:54:13,874 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:54:13,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:54:15,314 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:54:33,419 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 18:54:33,421 INFO L272 AbstractInterpreter]: Visited 83 different actions 544 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:54:33,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:54:33,444 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 18:54:33,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:54:33,444 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:54:33,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:54:33,460 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:54:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:54:33,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:55:02,369 WARN L179 SmtUtils]: Spent 24.33 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-10-24 18:55:22,593 WARN L179 SmtUtils]: Spent 16.09 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-10-24 18:55:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:22,826 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 18:55:27,377 WARN L179 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-10-24 18:55:27,454 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-24 18:55:30,122 WARN L179 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-24 18:55:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:55:30,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 18:55:30,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-24 18:55:30,458 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:55:30,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:55:30,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:55:30,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=160, Unknown=5, NotChecked=0, Total=210 [2018-10-24 18:55:30,460 INFO L87 Difference]: Start difference. First operand 1954 states and 2892 transitions. Second operand 6 states. [2018-10-24 18:56:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:32,247 INFO L93 Difference]: Finished difference Result 7536 states and 11509 transitions. [2018-10-24 18:56:32,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:56:32,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-24 18:56:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:32,282 INFO L225 Difference]: With dead ends: 7536 [2018-10-24 18:56:32,282 INFO L226 Difference]: Without dead ends: 5588 [2018-10-24 18:56:32,298 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 56.3s TimeCoverageRelationStatistics Valid=52, Invalid=183, Unknown=5, NotChecked=0, Total=240 [2018-10-24 18:56:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5588 states. [2018-10-24 18:56:32,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5588 to 5549. [2018-10-24 18:56:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5549 states. [2018-10-24 18:56:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 8007 transitions. [2018-10-24 18:56:32,456 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 8007 transitions. Word has length 104 [2018-10-24 18:56:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:32,457 INFO L481 AbstractCegarLoop]: Abstraction has 5549 states and 8007 transitions. [2018-10-24 18:56:32,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:56:32,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 8007 transitions. [2018-10-24 18:56:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-24 18:56:32,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:32,461 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:56:32,461 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:32,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:32,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1900453457, now seen corresponding path program 1 times [2018-10-24 18:56:32,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:32,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:32,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:32,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:32,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:56:32,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:56:32,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:56:32,666 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:56:32,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:56:32,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:56:32,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:56:32,667 INFO L87 Difference]: Start difference. First operand 5549 states and 8007 transitions. Second operand 6 states. [2018-10-24 18:56:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:38,115 INFO L93 Difference]: Finished difference Result 13851 states and 20306 transitions. [2018-10-24 18:56:38,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:56:38,118 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-24 18:56:38,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:38,164 INFO L225 Difference]: With dead ends: 13851 [2018-10-24 18:56:38,165 INFO L226 Difference]: Without dead ends: 8308 [2018-10-24 18:56:38,197 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:56:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8308 states. [2018-10-24 18:56:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8308 to 8245. [2018-10-24 18:56:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8245 states. [2018-10-24 18:56:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8245 states to 8245 states and 10561 transitions. [2018-10-24 18:56:38,446 INFO L78 Accepts]: Start accepts. Automaton has 8245 states and 10561 transitions. Word has length 109 [2018-10-24 18:56:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:38,447 INFO L481 AbstractCegarLoop]: Abstraction has 8245 states and 10561 transitions. [2018-10-24 18:56:38,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:56:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8245 states and 10561 transitions. [2018-10-24 18:56:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-24 18:56:38,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:38,453 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 18:56:38,453 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:38,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:38,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1496008104, now seen corresponding path program 1 times [2018-10-24 18:56:38,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:38,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:38,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:38,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:38,456 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 18:56:38,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:56:38,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:56:38,708 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:56:38,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:56:38,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:56:38,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:56:38,710 INFO L87 Difference]: Start difference. First operand 8245 states and 10561 transitions. Second operand 3 states. [2018-10-24 18:56:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:43,356 INFO L93 Difference]: Finished difference Result 21760 states and 28477 transitions. [2018-10-24 18:56:43,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:56:43,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2018-10-24 18:56:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:43,434 INFO L225 Difference]: With dead ends: 21760 [2018-10-24 18:56:43,435 INFO L226 Difference]: Without dead ends: 13521 [2018-10-24 18:56:43,500 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:56:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13521 states. [2018-10-24 18:56:43,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13521 to 13520. [2018-10-24 18:56:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13520 states. [2018-10-24 18:56:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13520 states to 13520 states and 16582 transitions. [2018-10-24 18:56:43,810 INFO L78 Accepts]: Start accepts. Automaton has 13520 states and 16582 transitions. Word has length 193 [2018-10-24 18:56:43,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:43,811 INFO L481 AbstractCegarLoop]: Abstraction has 13520 states and 16582 transitions. [2018-10-24 18:56:43,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:56:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 13520 states and 16582 transitions. [2018-10-24 18:56:43,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-24 18:56:43,817 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:43,818 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:56:43,818 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:43,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:43,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1623818265, now seen corresponding path program 1 times [2018-10-24 18:56:43,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:43,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:43,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:43,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:43,820 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:44,127 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 18:56:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 18:56:44,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:56:44,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:56:44,152 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:56:44,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:56:44,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:56:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:56:44,153 INFO L87 Difference]: Start difference. First operand 13520 states and 16582 transitions. Second operand 4 states. [2018-10-24 18:56:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:56:52,352 INFO L93 Difference]: Finished difference Result 39371 states and 50977 transitions. [2018-10-24 18:56:52,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:56:52,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2018-10-24 18:56:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:56:52,483 INFO L225 Difference]: With dead ends: 39371 [2018-10-24 18:56:52,483 INFO L226 Difference]: Without dead ends: 25857 [2018-10-24 18:56:52,555 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:56:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25857 states. [2018-10-24 18:56:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25857 to 25852. [2018-10-24 18:56:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25852 states. [2018-10-24 18:56:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25852 states to 25852 states and 31411 transitions. [2018-10-24 18:56:53,119 INFO L78 Accepts]: Start accepts. Automaton has 25852 states and 31411 transitions. Word has length 204 [2018-10-24 18:56:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:56:53,120 INFO L481 AbstractCegarLoop]: Abstraction has 25852 states and 31411 transitions. [2018-10-24 18:56:53,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:56:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 25852 states and 31411 transitions. [2018-10-24 18:56:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-24 18:56:53,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:56:53,129 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:56:53,129 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:56:53,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:56:53,130 INFO L82 PathProgramCache]: Analyzing trace with hash -430136309, now seen corresponding path program 1 times [2018-10-24 18:56:53,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:56:53,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:53,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:56:53,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:56:53,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:56:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:56:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 18:56:53,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:56:53,766 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:56:53,767 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-24 18:56:53,767 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [842], [844], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1286], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:56:53,780 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:56:53,780 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:56:55,405 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:57:16,415 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 18:57:16,415 INFO L272 AbstractInterpreter]: Visited 98 different actions 570 times. Merged at 7 different actions 38 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-24 18:57:16,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:57:16,422 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 18:57:16,422 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:57:16,422 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 18:57:16,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:57:16,431 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:57:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:57:16,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:57:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 18:57:16,695 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 18:57:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 49 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:57:17,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 18:57:17,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 16 [2018-10-24 18:57:17,542 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 18:57:17,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 18:57:17,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 18:57:17,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-10-24 18:57:17,544 INFO L87 Difference]: Start difference. First operand 25852 states and 31411 transitions. Second operand 10 states. [2018-10-24 18:57:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:57:40,940 INFO L93 Difference]: Finished difference Result 85245 states and 110112 transitions. [2018-10-24 18:57:40,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 18:57:40,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2018-10-24 18:57:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:57:41,230 INFO L225 Difference]: With dead ends: 85245 [2018-10-24 18:57:41,230 INFO L226 Difference]: Without dead ends: 59399 [2018-10-24 18:57:41,422 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2018-10-24 18:57:41,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59399 states. Received shutdown request... [2018-10-24 18:57:41,951 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:57:41,956 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:57:41,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:57:41 BoogieIcfgContainer [2018-10-24 18:57:41,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:57:41,958 INFO L168 Benchmark]: Toolchain (without parser) took 244167.95 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,959 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:57:41,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1643.43 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 480.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -945.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,961 INFO L168 Benchmark]: Boogie Preprocessor took 293.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,962 INFO L168 Benchmark]: RCFGBuilder took 11382.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 474.8 MB). Peak memory consumption was 474.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,963 INFO L168 Benchmark]: TraceAbstraction took 230363.75 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -707.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 18:57:41,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1643.43 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 480.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -945.6 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 293.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11382.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 474.8 MB). Peak memory consumption was 474.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230363.75 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: -707.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 74). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 230.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 124.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2949 SDtfs, 15260 SDslu, 2042 SDs, 0 SdLazy, 24526 SolverSat, 6984 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 114.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 680 GetRequests, 621 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 58.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25852occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 42.3s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 606 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 59.9s InterpolantComputationTime, 1256 NumberOfCodeBlocks, 1256 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1555 ConstructedInterpolants, 196 QuantifiedInterpolants, 1933799 SizeOfPredicates, 5 NumberOfNonLiveVariables, 658 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 630/757 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown