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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:42:24,969 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:42:24,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:42:24,990 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:42:24,990 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:42:24,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:42:24,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:42:24,996 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:42:24,999 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:42:25,000 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:42:25,003 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:42:25,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:42:25,005 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:42:25,006 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:42:25,015 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:42:25,016 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:42:25,017 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:42:25,019 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:42:25,020 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:42:25,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:42:25,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:42:25,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:42:25,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:42:25,027 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:42:25,027 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:42:25,028 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:42:25,029 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:42:25,029 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:42:25,030 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:42:25,031 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:42:25,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:42:25,032 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 18:42:25,035 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 18:42:25,058 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:42:25,058 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:42:25,060 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:42:25,060 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:42:25,061 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:42:25,061 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:42:25,061 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:42:25,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:42:25,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:42:25,064 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:42:25,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:42:25,064 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:42:25,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:42:25,065 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:42:25,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:42:25,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:42:25,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:42:25,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:42:25,066 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:42:25,067 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:42:25,067 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:42:25,067 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:42:25,067 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:42:25,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:42:25,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:42:25,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:42:25,148 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:42:25,149 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:42:25,150 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label43_false-unreach-call.c [2018-10-23 18:42:25,212 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/97251a4b3/712a331eb6994a7a83e8793487471fa6/FLAG80c05bb3a [2018-10-23 18:42:26,115 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:42:26,117 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label43_false-unreach-call.c [2018-10-23 18:42:26,169 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/97251a4b3/712a331eb6994a7a83e8793487471fa6/FLAG80c05bb3a [2018-10-23 18:42:26,188 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/97251a4b3/712a331eb6994a7a83e8793487471fa6 [2018-10-23 18:42:26,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:42:26,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:42:26,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:42:26,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:42:26,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:42:26,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:26" (1/1) ... [2018-10-23 18:42:26,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1b2c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:26, skipping insertion in model container [2018-10-23 18:42:26,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:42:26" (1/1) ... [2018-10-23 18:42:26,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:42:26,499 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:42:28,367 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:42:28,374 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:42:29,529 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:42:29,585 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:42:29,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29 WrapperNode [2018-10-23 18:42:29,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:42:29,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:42:29,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:42:29,587 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:42:29,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:29,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:30,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:42:30,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:42:30,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:42:30,681 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:42:30,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:30,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:30,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:30,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:31,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:31,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:31,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (1/1) ... [2018-10-23 18:42:31,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:42:31,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:42:31,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:42:31,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:42:31,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (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 [2018-10-23 18:42:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:42:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:42:31,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:42:50,368 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:42:50,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:50 BoogieIcfgContainer [2018-10-23 18:42:50,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:42:50,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:42:50,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:42:50,374 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:42:50,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:42:26" (1/3) ... [2018-10-23 18:42:50,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2fcbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:50, skipping insertion in model container [2018-10-23 18:42:50,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:42:29" (2/3) ... [2018-10-23 18:42:50,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2fcbe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:42:50, skipping insertion in model container [2018-10-23 18:42:50,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:42:50" (3/3) ... [2018-10-23 18:42:50,378 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label43_false-unreach-call.c [2018-10-23 18:42:50,388 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:42:50,399 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:42:50,417 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:42:50,466 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:42:50,467 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:42:50,467 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:42:50,467 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:42:50,468 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:42:50,468 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:42:50,468 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:42:50,468 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:42:50,468 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:42:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 18:42:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-23 18:42:50,521 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:42:50,522 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] [2018-10-23 18:42:50,525 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:42:50,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:42:50,531 INFO L82 PathProgramCache]: Analyzing trace with hash -314381782, now seen corresponding path program 1 times [2018-10-23 18:42:50,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:42:50,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:42:50,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:42:50,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:42:50,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:42:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:42:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:42:50,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:42:50,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:42:50,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:42:50,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:42:50,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:42:50,859 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 18:43:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:43:17,003 INFO L93 Difference]: Finished difference Result 6431 states and 12286 transitions. [2018-10-23 18:43:17,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:43:17,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-23 18:43:17,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:43:17,060 INFO L225 Difference]: With dead ends: 6431 [2018-10-23 18:43:17,060 INFO L226 Difference]: Without dead ends: 4675 [2018-10-23 18:43:17,072 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:43:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2018-10-23 18:43:17,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 4581. [2018-10-23 18:43:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4581 states. [2018-10-23 18:43:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 7890 transitions. [2018-10-23 18:43:17,284 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 7890 transitions. Word has length 23 [2018-10-23 18:43:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:43:17,285 INFO L481 AbstractCegarLoop]: Abstraction has 4581 states and 7890 transitions. [2018-10-23 18:43:17,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:43:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 7890 transitions. [2018-10-23 18:43:17,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-23 18:43:17,289 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:43:17,289 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:43:17,290 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:43:17,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:43:17,290 INFO L82 PathProgramCache]: Analyzing trace with hash 528267678, now seen corresponding path program 1 times [2018-10-23 18:43:17,290 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:43:17,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:43:17,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:43:17,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:43:17,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:43:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:43:17,772 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 18:43:18,327 WARN L179 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-23 18:43:18,546 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-10-23 18:43:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:43:18,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:43:18,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 18:43:18,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:43:18,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:43:18,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:43:18,879 INFO L87 Difference]: Start difference. First operand 4581 states and 7890 transitions. Second operand 6 states. [2018-10-23 18:43:19,080 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 18:43:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:43:51,609 INFO L93 Difference]: Finished difference Result 17384 states and 28714 transitions. [2018-10-23 18:43:51,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:43:51,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-10-23 18:43:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:43:51,670 INFO L225 Difference]: With dead ends: 17384 [2018-10-23 18:43:51,671 INFO L226 Difference]: Without dead ends: 12805 [2018-10-23 18:43:51,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 18:43:51,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12805 states. [2018-10-23 18:43:51,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12805 to 11430. [2018-10-23 18:43:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11430 states. [2018-10-23 18:43:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11430 states to 11430 states and 17329 transitions. [2018-10-23 18:43:51,902 INFO L78 Accepts]: Start accepts. Automaton has 11430 states and 17329 transitions. Word has length 95 [2018-10-23 18:43:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:43:51,902 INFO L481 AbstractCegarLoop]: Abstraction has 11430 states and 17329 transitions. [2018-10-23 18:43:51,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:43:51,903 INFO L276 IsEmpty]: Start isEmpty. Operand 11430 states and 17329 transitions. [2018-10-23 18:43:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-23 18:43:51,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:43:51,925 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:43:51,925 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:43:51,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:43:51,926 INFO L82 PathProgramCache]: Analyzing trace with hash 19672493, now seen corresponding path program 1 times [2018-10-23 18:43:51,926 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:43:51,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:43:51,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:43:51,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:43:51,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:43:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:43:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-23 18:43:52,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:43:52,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 18:43:52,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 18:43:52,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 18:43:52,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:43:52,871 INFO L87 Difference]: Start difference. First operand 11430 states and 17329 transitions. Second operand 7 states. [2018-10-23 18:44:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:44:27,393 INFO L93 Difference]: Finished difference Result 35166 states and 54823 transitions. [2018-10-23 18:44:27,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:44:27,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2018-10-23 18:44:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:44:27,463 INFO L225 Difference]: With dead ends: 35166 [2018-10-23 18:44:27,463 INFO L226 Difference]: Without dead ends: 23738 [2018-10-23 18:44:27,478 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:44:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23738 states. [2018-10-23 18:44:27,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23738 to 19636. [2018-10-23 18:44:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19636 states. [2018-10-23 18:44:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19636 states to 19636 states and 26064 transitions. [2018-10-23 18:44:27,824 INFO L78 Accepts]: Start accepts. Automaton has 19636 states and 26064 transitions. Word has length 309 [2018-10-23 18:44:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:44:27,825 INFO L481 AbstractCegarLoop]: Abstraction has 19636 states and 26064 transitions. [2018-10-23 18:44:27,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 18:44:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 19636 states and 26064 transitions. [2018-10-23 18:44:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-23 18:44:27,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:27,831 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:44:27,835 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:27,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash 2023125715, now seen corresponding path program 1 times [2018-10-23 18:44:27,835 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:27,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:27,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:27,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:27,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 18:44:28,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:44:28,452 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-10-23 18:44:28,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:28,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:44:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:44:28,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:44:28,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 18:44:28,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:44:28,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:44:28,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:44:28,798 INFO L87 Difference]: Start difference. First operand 19636 states and 26064 transitions. Second operand 4 states. [2018-10-23 18:44:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:44:56,840 INFO L93 Difference]: Finished difference Result 68184 states and 93591 transitions. [2018-10-23 18:44:56,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:44:56,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 337 [2018-10-23 18:44:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:44:56,991 INFO L225 Difference]: With dead ends: 68184 [2018-10-23 18:44:56,992 INFO L226 Difference]: Without dead ends: 49916 [2018-10-23 18:44:57,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:44:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49916 states. [2018-10-23 18:44:57,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49916 to 31922. [2018-10-23 18:44:57,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31922 states. [2018-10-23 18:44:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31922 states to 31922 states and 43418 transitions. [2018-10-23 18:44:57,691 INFO L78 Accepts]: Start accepts. Automaton has 31922 states and 43418 transitions. Word has length 337 [2018-10-23 18:44:57,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:44:57,692 INFO L481 AbstractCegarLoop]: Abstraction has 31922 states and 43418 transitions. [2018-10-23 18:44:57,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:44:57,692 INFO L276 IsEmpty]: Start isEmpty. Operand 31922 states and 43418 transitions. [2018-10-23 18:44:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-10-23 18:44:57,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:57,700 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:44:57,700 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:57,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:57,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1256201348, now seen corresponding path program 1 times [2018-10-23 18:44:57,701 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:57,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:57,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:57,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:57,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 41 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-10-23 18:44:58,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:44:58,552 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-10-23 18:44:58,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:58,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:44:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:44:58,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:44:58,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 18:44:58,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:44:58,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:44:58,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:44:58,919 INFO L87 Difference]: Start difference. First operand 31922 states and 43418 transitions. Second operand 5 states. [2018-10-23 18:45:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:45:37,029 INFO L93 Difference]: Finished difference Result 133872 states and 192096 transitions. [2018-10-23 18:45:37,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:45:37,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2018-10-23 18:45:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:45:37,208 INFO L225 Difference]: With dead ends: 133872 [2018-10-23 18:45:37,209 INFO L226 Difference]: Without dead ends: 97852 [2018-10-23 18:45:37,249 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:45:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97852 states. [2018-10-23 18:45:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97852 to 95031. [2018-10-23 18:45:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95031 states. [2018-10-23 18:45:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95031 states to 95031 states and 117721 transitions. [2018-10-23 18:45:38,301 INFO L78 Accepts]: Start accepts. Automaton has 95031 states and 117721 transitions. Word has length 382 [2018-10-23 18:45:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:45:38,302 INFO L481 AbstractCegarLoop]: Abstraction has 95031 states and 117721 transitions. [2018-10-23 18:45:38,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:45:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 95031 states and 117721 transitions. [2018-10-23 18:45:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-10-23 18:45:38,309 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:45:38,310 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:45:38,310 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:45:38,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:45:38,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1233959186, now seen corresponding path program 1 times [2018-10-23 18:45:38,311 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:45:38,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:45:38,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:38,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:38,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:39,295 WARN L179 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 18:45:39,499 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 18:45:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 256 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:45:39,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:45:39,932 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:45:39,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:40,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:45:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:45:40,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:45:40,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 18:45:40,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:45:40,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:45:40,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:45:40,306 INFO L87 Difference]: Start difference. First operand 95031 states and 117721 transitions. Second operand 5 states. [2018-10-23 18:46:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:46:08,509 INFO L93 Difference]: Finished difference Result 210553 states and 259099 transitions. [2018-10-23 18:46:08,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:46:08,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 479 [2018-10-23 18:46:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:46:08,645 INFO L225 Difference]: With dead ends: 210553 [2018-10-23 18:46:08,645 INFO L226 Difference]: Without dead ends: 112789 [2018-10-23 18:46:09,237 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 479 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:46:09,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112789 states. [2018-10-23 18:46:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112789 to 111421. [2018-10-23 18:46:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111421 states. [2018-10-23 18:46:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111421 states to 111421 states and 125638 transitions. [2018-10-23 18:46:10,241 INFO L78 Accepts]: Start accepts. Automaton has 111421 states and 125638 transitions. Word has length 479 [2018-10-23 18:46:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:46:10,241 INFO L481 AbstractCegarLoop]: Abstraction has 111421 states and 125638 transitions. [2018-10-23 18:46:10,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:46:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 111421 states and 125638 transitions. [2018-10-23 18:46:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2018-10-23 18:46:10,263 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:46:10,264 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:46:10,265 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:46:10,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:46:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash -146976363, now seen corresponding path program 1 times [2018-10-23 18:46:10,265 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:46:10,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:46:10,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:10,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:10,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:11,079 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-10-23 18:46:11,413 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 9 [2018-10-23 18:46:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 41 proven. 65 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-10-23 18:46:12,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:46:12,382 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:46:12,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:12,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:46:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:46:13,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:46:13,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:46:13,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 18:46:13,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 18:46:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:46:13,613 INFO L87 Difference]: Start difference. First operand 111421 states and 125638 transitions. Second operand 7 states. Received shutdown request... [2018-10-23 18:46:23,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 18:46:23,793 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:46:23,800 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:46:23,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:46:23 BoogieIcfgContainer [2018-10-23 18:46:23,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:46:23,802 INFO L168 Benchmark]: Toolchain (without parser) took 237600.32 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 576.8 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,803 INFO L168 Benchmark]: CDTParser took 0.30 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. [2018-10-23 18:46:23,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3381.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 1093.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,806 INFO L168 Benchmark]: Boogie Preprocessor took 754.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,806 INFO L168 Benchmark]: RCFGBuilder took 18933.67 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.5 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -386.1 MB). Peak memory consumption was 863.2 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,808 INFO L168 Benchmark]: TraceAbstraction took 213430.66 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 3.2 GB in the end (delta: -767.2 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:46:23,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 3381.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1093.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 754.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18933.67 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.5 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -386.1 MB). Peak memory consumption was 863.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213430.66 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 3.2 GB in the end (delta: -767.2 MB). Peak memory consumption was 461.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 82). Cancelled while BasicCegarLoop was constructing difference of abstraction (111421states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (77500 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 199.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8097 SDtfs, 49232 SDslu, 4040 SDs, 0 SdLazy, 85276 SolverSat, 22699 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 171.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1972 GetRequests, 1931 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111421occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 27754 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 4285 NumberOfCodeBlocks, 4285 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4274 ConstructedInterpolants, 0 QuantifiedInterpolants, 12381580 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2280 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1598/1736 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown