java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 12:10:05,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 12:10:05,442 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 12:10:05,459 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 12:10:05,459 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 12:10:05,460 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 12:10:05,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 12:10:05,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 12:10:05,472 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 12:10:05,472 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 12:10:05,473 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 12:10:05,473 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 12:10:05,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 12:10:05,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 12:10:05,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 12:10:05,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 12:10:05,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 12:10:05,479 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 12:10:05,481 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 12:10:05,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 12:10:05,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 12:10:05,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 12:10:05,487 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 12:10:05,487 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 12:10:05,488 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 12:10:05,488 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 12:10:05,489 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 12:10:05,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 12:10:05,491 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 12:10:05,492 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 12:10:05,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 12:10:05,493 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 12:10:05,496 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 12:10:05,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 12:10:05,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 12:10:05,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 12:10:05,518 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 12:10:05,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 12:10:05,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 12:10:05,519 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 12:10:05,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 12:10:05,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 12:10:05,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 12:10:05,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 12:10:05,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 12:10:05,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 12:10:05,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 12:10:05,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 12:10:05,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 12:10:05,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 12:10:05,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 12:10:05,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 12:10:05,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 12:10:05,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 12:10:05,522 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 12:10:05,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 12:10:05,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 12:10:05,523 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 12:10:05,523 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 12:10:05,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 12:10:05,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 12:10:05,523 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 12:10:05,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 12:10:05,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 12:10:05,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 12:10:05,597 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 12:10:05,597 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 12:10:05,598 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c [2018-07-22 12:10:05,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/523c11811/a89f8f17f046450cac6b9105509c0af9/FLAGc6efa1da5 [2018-07-22 12:10:06,491 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 12:10:06,492 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label57_true-unreach-call.c [2018-07-22 12:10:06,545 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/523c11811/a89f8f17f046450cac6b9105509c0af9/FLAGc6efa1da5 [2018-07-22 12:10:06,565 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/523c11811/a89f8f17f046450cac6b9105509c0af9 [2018-07-22 12:10:06,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 12:10:06,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 12:10:06,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 12:10:06,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 12:10:06,597 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 12:10:06,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:06" (1/1) ... [2018-07-22 12:10:06,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539793c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:06, skipping insertion in model container [2018-07-22 12:10:06,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:06" (1/1) ... [2018-07-22 12:10:06,996 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 12:10:08,264 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:10:08,282 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 12:10:09,132 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:10:09,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09 WrapperNode [2018-07-22 12:10:09,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 12:10:09,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 12:10:09,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 12:10:09,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 12:10:09,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:09,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:09,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 12:10:09,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 12:10:09,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 12:10:09,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 12:10:09,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:09,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:09,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:09,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:10,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:10,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:10,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... [2018-07-22 12:10:10,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 12:10:10,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 12:10:10,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 12:10:10,412 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 12:10:10,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 12:10:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 12:10:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 12:10:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 12:10:21,021 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 12:10:21,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:21 BoogieIcfgContainer [2018-07-22 12:10:21,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 12:10:21,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 12:10:21,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 12:10:21,027 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 12:10:21,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:10:06" (1/3) ... [2018-07-22 12:10:21,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657c20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:10:21, skipping insertion in model container [2018-07-22 12:10:21,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:09" (2/3) ... [2018-07-22 12:10:21,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657c20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:10:21, skipping insertion in model container [2018-07-22 12:10:21,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:21" (3/3) ... [2018-07-22 12:10:21,031 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label57_true-unreach-call.c [2018-07-22 12:10:21,041 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 12:10:21,056 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 12:10:21,121 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 12:10:21,122 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 12:10:21,122 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 12:10:21,122 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 12:10:21,122 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 12:10:21,122 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 12:10:21,122 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 12:10:21,123 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 12:10:21,123 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 12:10:21,156 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-22 12:10:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-22 12:10:21,164 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:10:21,165 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:10:21,166 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:10:21,172 INFO L82 PathProgramCache]: Analyzing trace with hash -387853398, now seen corresponding path program 1 times [2018-07-22 12:10:21,174 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:10:21,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:10:21,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:21,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:10:21,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:10:21,669 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-22 12:10:22,106 WARN L169 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2018-07-22 12:10:22,713 WARN L169 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2018-07-22 12:10:23,122 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 4 [2018-07-22 12:10:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:10:23,177 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:10:23,177 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-22 12:10:23,180 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 12:10:23,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 12:10:23,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 12:10:23,199 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 7 states. [2018-07-22 12:10:24,367 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-22 12:10:39,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:10:39,120 INFO L93 Difference]: Finished difference Result 5413 states and 10642 transitions. [2018-07-22 12:10:39,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 12:10:39,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-07-22 12:10:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:10:39,180 INFO L225 Difference]: With dead ends: 5413 [2018-07-22 12:10:39,181 INFO L226 Difference]: Without dead ends: 4578 [2018-07-22 12:10:39,190 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-07-22 12:10:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2018-07-22 12:10:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 3072. [2018-07-22 12:10:39,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2018-07-22 12:10:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4384 transitions. [2018-07-22 12:10:39,395 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4384 transitions. Word has length 38 [2018-07-22 12:10:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:10:39,396 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4384 transitions. [2018-07-22 12:10:39,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 12:10:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4384 transitions. [2018-07-22 12:10:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-22 12:10:39,404 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:10:39,404 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:10:39,405 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:10:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1929180755, now seen corresponding path program 1 times [2018-07-22 12:10:39,405 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:10:39,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:10:39,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:39,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:10:39,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:10:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 134 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-07-22 12:10:40,012 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:10:40,013 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:10:40,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:10:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:10:40,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:10:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-07-22 12:10:40,265 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:10:40,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-22 12:10:40,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 12:10:40,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 12:10:40,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:10:40,267 INFO L87 Difference]: Start difference. First operand 3072 states and 4384 transitions. Second operand 6 states. [2018-07-22 12:10:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:10:57,629 INFO L93 Difference]: Finished difference Result 15950 states and 24157 transitions. [2018-07-22 12:10:57,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 12:10:57,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-07-22 12:10:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:10:57,679 INFO L225 Difference]: With dead ends: 15950 [2018-07-22 12:10:57,679 INFO L226 Difference]: Without dead ends: 10621 [2018-07-22 12:10:57,687 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-22 12:10:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2018-07-22 12:10:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 4575. [2018-07-22 12:10:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states. [2018-07-22 12:10:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5823 transitions. [2018-07-22 12:10:57,877 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5823 transitions. Word has length 180 [2018-07-22 12:10:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:10:57,878 INFO L471 AbstractCegarLoop]: Abstraction has 4575 states and 5823 transitions. [2018-07-22 12:10:57,878 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 12:10:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5823 transitions. [2018-07-22 12:10:57,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-07-22 12:10:57,895 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:10:57,895 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:10:57,895 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:10:57,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1624472738, now seen corresponding path program 1 times [2018-07-22 12:10:57,897 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:10:57,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:10:57,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:57,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:10:57,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:10:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:10:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 71 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:10:58,626 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:10:58,628 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 12:10:58,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:10:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:10:58,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:10:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 85 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:10:59,368 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 12:10:59,368 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-07-22 12:10:59,369 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 12:10:59,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 12:10:59,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-22 12:10:59,369 INFO L87 Difference]: Start difference. First operand 4575 states and 5823 transitions. Second operand 7 states. [2018-07-22 12:11:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:14,881 INFO L93 Difference]: Finished difference Result 24940 states and 34259 transitions. [2018-07-22 12:11:14,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-22 12:11:14,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2018-07-22 12:11:14,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:14,939 INFO L225 Difference]: With dead ends: 24940 [2018-07-22 12:11:14,939 INFO L226 Difference]: Without dead ends: 20367 [2018-07-22 12:11:14,947 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-07-22 12:11:14,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20367 states. [2018-07-22 12:11:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20367 to 19615. [2018-07-22 12:11:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19615 states. [2018-07-22 12:11:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19615 states to 19615 states and 23317 transitions. [2018-07-22 12:11:15,371 INFO L78 Accepts]: Start accepts. Automaton has 19615 states and 23317 transitions. Word has length 250 [2018-07-22 12:11:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:15,372 INFO L471 AbstractCegarLoop]: Abstraction has 19615 states and 23317 transitions. [2018-07-22 12:11:15,373 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 12:11:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 19615 states and 23317 transitions. [2018-07-22 12:11:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-07-22 12:11:15,380 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:15,380 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-07-22 12:11:15,380 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:15,380 INFO L82 PathProgramCache]: Analyzing trace with hash -384877355, now seen corresponding path program 1 times [2018-07-22 12:11:15,381 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:15,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:15,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:15,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:15,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:11:15,918 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:11:15,918 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:11:15,919 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:11:15,920 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:11:15,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:15,920 INFO L87 Difference]: Start difference. First operand 19615 states and 23317 transitions. Second operand 4 states. [2018-07-22 12:11:21,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:21,161 INFO L93 Difference]: Finished difference Result 60284 states and 73572 transitions. [2018-07-22 12:11:21,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:11:21,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2018-07-22 12:11:21,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:21,250 INFO L225 Difference]: With dead ends: 60284 [2018-07-22 12:11:21,250 INFO L226 Difference]: Without dead ends: 40671 [2018-07-22 12:11:21,274 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40671 states. [2018-07-22 12:11:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40671 to 40671. [2018-07-22 12:11:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40671 states. [2018-07-22 12:11:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40671 states to 40671 states and 48787 transitions. [2018-07-22 12:11:22,074 INFO L78 Accepts]: Start accepts. Automaton has 40671 states and 48787 transitions. Word has length 292 [2018-07-22 12:11:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:22,076 INFO L471 AbstractCegarLoop]: Abstraction has 40671 states and 48787 transitions. [2018-07-22 12:11:22,076 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:11:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 40671 states and 48787 transitions. [2018-07-22 12:11:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-07-22 12:11:22,086 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:22,087 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 12:11:22,087 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:22,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1689626427, now seen corresponding path program 1 times [2018-07-22 12:11:22,087 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:22,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:22,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:22,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:22,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 218 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-22 12:11:22,585 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:11:22,586 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-22 12:11:22,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:22,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:11:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-22 12:11:22,976 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:11:22,976 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 12:11:22,977 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:11:22,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:11:22,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:22,978 INFO L87 Difference]: Start difference. First operand 40671 states and 48787 transitions. Second operand 4 states. [2018-07-22 12:11:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:29,022 INFO L93 Difference]: Finished difference Result 135545 states and 163249 transitions. [2018-07-22 12:11:29,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:11:29,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2018-07-22 12:11:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:29,170 INFO L225 Difference]: With dead ends: 135545 [2018-07-22 12:11:29,171 INFO L226 Difference]: Without dead ends: 94876 [2018-07-22 12:11:29,214 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:29,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94876 states. [2018-07-22 12:11:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94876 to 56463. [2018-07-22 12:11:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56463 states. [2018-07-22 12:11:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56463 states to 56463 states and 64990 transitions. [2018-07-22 12:11:30,112 INFO L78 Accepts]: Start accepts. Automaton has 56463 states and 64990 transitions. Word has length 332 [2018-07-22 12:11:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:30,112 INFO L471 AbstractCegarLoop]: Abstraction has 56463 states and 64990 transitions. [2018-07-22 12:11:30,113 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:11:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 56463 states and 64990 transitions. [2018-07-22 12:11:30,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-07-22 12:11:30,123 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:30,123 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:11:30,124 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:30,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1819016660, now seen corresponding path program 1 times [2018-07-22 12:11:30,124 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:30,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:30,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:30,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:30,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 5 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-22 12:11:30,996 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:11:30,996 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-07-22 12:11:31,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:11:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:31,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:11:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-07-22 12:11:31,304 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:11:31,304 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-22 12:11:31,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:11:31,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:11:31,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:11:31,306 INFO L87 Difference]: Start difference. First operand 56463 states and 64990 transitions. Second operand 5 states. [2018-07-22 12:11:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:42,392 INFO L93 Difference]: Finished difference Result 130972 states and 151601 transitions. [2018-07-22 12:11:42,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 12:11:42,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2018-07-22 12:11:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:42,473 INFO L225 Difference]: With dead ends: 130972 [2018-07-22 12:11:42,473 INFO L226 Difference]: Without dead ends: 74511 [2018-07-22 12:11:42,506 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 12:11:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74511 states. [2018-07-22 12:11:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74511 to 71503. [2018-07-22 12:11:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71503 states. [2018-07-22 12:11:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71503 states to 71503 states and 79156 transitions. [2018-07-22 12:11:43,212 INFO L78 Accepts]: Start accepts. Automaton has 71503 states and 79156 transitions. Word has length 345 [2018-07-22 12:11:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:43,213 INFO L471 AbstractCegarLoop]: Abstraction has 71503 states and 79156 transitions. [2018-07-22 12:11:43,213 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:11:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 71503 states and 79156 transitions. [2018-07-22 12:11:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-07-22 12:11:43,224 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:43,224 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:11:43,225 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash 951827472, now seen corresponding path program 1 times [2018-07-22 12:11:43,225 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:43,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:43,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:43,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:43,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-22 12:11:43,743 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:11:43,743 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:11:43,744 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:11:43,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:11:43,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:43,745 INFO L87 Difference]: Start difference. First operand 71503 states and 79156 transitions. Second operand 4 states. [2018-07-22 12:11:49,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:49,132 INFO L93 Difference]: Finished difference Result 142251 states and 157551 transitions. [2018-07-22 12:11:49,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:11:49,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 372 [2018-07-22 12:11:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:49,207 INFO L225 Difference]: With dead ends: 142251 [2018-07-22 12:11:49,207 INFO L226 Difference]: Without dead ends: 55675 [2018-07-22 12:11:49,254 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55675 states. [2018-07-22 12:11:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55675 to 55675. [2018-07-22 12:11:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55675 states. [2018-07-22 12:11:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55675 states to 55675 states and 59853 transitions. [2018-07-22 12:11:50,249 INFO L78 Accepts]: Start accepts. Automaton has 55675 states and 59853 transitions. Word has length 372 [2018-07-22 12:11:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:50,250 INFO L471 AbstractCegarLoop]: Abstraction has 55675 states and 59853 transitions. [2018-07-22 12:11:50,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:11:50,250 INFO L276 IsEmpty]: Start isEmpty. Operand 55675 states and 59853 transitions. [2018-07-22 12:11:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-07-22 12:11:50,276 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:50,277 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:11:50,277 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:50,277 INFO L82 PathProgramCache]: Analyzing trace with hash 905229026, now seen corresponding path program 1 times [2018-07-22 12:11:50,278 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:50,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:50,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:50,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:50,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2018-07-22 12:11:50,782 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:11:50,782 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:11:50,782 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:11:50,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:11:50,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:11:50,783 INFO L87 Difference]: Start difference. First operand 55675 states and 59853 transitions. Second operand 3 states. [2018-07-22 12:11:54,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:11:54,628 INFO L93 Difference]: Finished difference Result 131652 states and 141777 transitions. [2018-07-22 12:11:54,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:11:54,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 553 [2018-07-22 12:11:54,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:11:55,104 INFO L225 Difference]: With dead ends: 131652 [2018-07-22 12:11:55,105 INFO L226 Difference]: Without dead ends: 75979 [2018-07-22 12:11:55,128 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:11:55,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75979 states. [2018-07-22 12:11:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75979 to 71467. [2018-07-22 12:11:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71467 states. [2018-07-22 12:11:55,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71467 states to 71467 states and 76864 transitions. [2018-07-22 12:11:55,699 INFO L78 Accepts]: Start accepts. Automaton has 71467 states and 76864 transitions. Word has length 553 [2018-07-22 12:11:55,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:11:55,699 INFO L471 AbstractCegarLoop]: Abstraction has 71467 states and 76864 transitions. [2018-07-22 12:11:55,699 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:11:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 71467 states and 76864 transitions. [2018-07-22 12:11:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2018-07-22 12:11:55,718 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:11:55,719 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:11:55,719 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:11:55,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1434435195, now seen corresponding path program 1 times [2018-07-22 12:11:55,719 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:11:55,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:11:55,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:55,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:11:55,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:11:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:11:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-07-22 12:11:56,412 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:11:56,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:11:56,412 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:11:56,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:11:56,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:11:56,412 INFO L87 Difference]: Start difference. First operand 71467 states and 76864 transitions. Second operand 4 states. [2018-07-22 12:12:01,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:12:01,302 INFO L93 Difference]: Finished difference Result 142931 states and 153726 transitions. [2018-07-22 12:12:01,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:12:01,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 562 [2018-07-22 12:12:01,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:12:01,360 INFO L225 Difference]: With dead ends: 142931 [2018-07-22 12:12:01,360 INFO L226 Difference]: Without dead ends: 66190 [2018-07-22 12:12:01,386 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:12:01,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66190 states. [2018-07-22 12:12:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66190 to 61678. [2018-07-22 12:12:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61678 states. [2018-07-22 12:12:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61678 states to 61678 states and 64904 transitions. [2018-07-22 12:12:01,889 INFO L78 Accepts]: Start accepts. Automaton has 61678 states and 64904 transitions. Word has length 562 [2018-07-22 12:12:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:12:01,890 INFO L471 AbstractCegarLoop]: Abstraction has 61678 states and 64904 transitions. [2018-07-22 12:12:01,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:12:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 61678 states and 64904 transitions. [2018-07-22 12:12:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2018-07-22 12:12:01,907 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:12:01,908 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:12:01,908 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:12:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash 709934627, now seen corresponding path program 1 times [2018-07-22 12:12:01,908 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:12:01,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:12:01,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:12:01,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:12:01,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:12:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:12:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 603 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-07-22 12:12:02,967 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:12:02,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:12:02,968 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:12:02,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:12:02,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:12:02,969 INFO L87 Difference]: Start difference. First operand 61678 states and 64904 transitions. Second operand 3 states. [2018-07-22 12:12:06,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:12:06,555 INFO L93 Difference]: Finished difference Result 124858 states and 131522 transitions. [2018-07-22 12:12:06,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:12:06,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 672 [2018-07-22 12:12:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:12:06,633 INFO L225 Difference]: With dead ends: 124858 [2018-07-22 12:12:06,633 INFO L226 Difference]: Without dead ends: 63934 [2018-07-22 12:12:06,664 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:12:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63934 states. [2018-07-22 12:12:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63934 to 62430. [2018-07-22 12:12:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62430 states. [2018-07-22 12:12:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62430 states to 62430 states and 64989 transitions. [2018-07-22 12:12:07,165 INFO L78 Accepts]: Start accepts. Automaton has 62430 states and 64989 transitions. Word has length 672 [2018-07-22 12:12:07,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:12:07,166 INFO L471 AbstractCegarLoop]: Abstraction has 62430 states and 64989 transitions. [2018-07-22 12:12:07,166 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:12:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 62430 states and 64989 transitions. [2018-07-22 12:12:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-07-22 12:12:07,202 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:12:07,203 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:12:07,203 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:12:07,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1532058663, now seen corresponding path program 1 times [2018-07-22 12:12:07,204 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:12:07,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:12:07,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:12:07,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:12:07,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:12:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:12:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 545 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-22 12:12:09,716 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:12:09,716 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:12:09,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:12:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:12:09,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:12:47,979 WARN L169 SmtUtils]: Spent 35.98 s on a formula simplification. DAG size of input: 1522 DAG size of output: 21 [2018-07-22 12:12:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2018-07-22 12:12:48,907 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:12:48,907 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-22 12:12:48,908 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 12:12:48,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 12:12:48,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:12:48,909 INFO L87 Difference]: Start difference. First operand 62430 states and 64989 transitions. Second operand 6 states. [2018-07-22 12:14:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:14:05,264 INFO L93 Difference]: Finished difference Result 171481 states and 178221 transitions. [2018-07-22 12:14:05,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 12:14:05,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 954 [2018-07-22 12:14:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:14:05,265 INFO L225 Difference]: With dead ends: 171481 [2018-07-22 12:14:05,265 INFO L226 Difference]: Without dead ends: 0 [2018-07-22 12:14:05,287 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-07-22 12:14:05,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-22 12:14:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-22 12:14:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-22 12:14:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-22 12:14:05,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 954 [2018-07-22 12:14:05,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:14:05,288 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-22 12:14:05,288 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 12:14:05,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-22 12:14:05,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-22 12:14:05,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2018-07-22 12:14:05,374 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-22 12:14:05,375 INFO L168 Benchmark]: Toolchain (without parser) took 238795.06 ms. Allocated memory was 309.3 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 243.1 MB in the beginning and 1.1 GB in the end (delta: -835.2 MB). Peak memory consumption was 861.3 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,376 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 309.3 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 12:14:05,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2816.71 ms. Allocated memory was 309.3 MB in the beginning and 380.6 MB in the end (delta: 71.3 MB). Free memory was 242.0 MB in the beginning and 267.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 102.3 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 453.73 ms. Allocated memory is still 380.6 MB. Free memory was 267.8 MB in the beginning and 192.3 MB in the end (delta: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,378 INFO L168 Benchmark]: Boogie Preprocessor took 551.74 ms. Allocated memory was 380.6 MB in the beginning and 393.2 MB in the end (delta: 12.6 MB). Free memory was 192.3 MB in the beginning and 260.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 114.4 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,378 INFO L168 Benchmark]: RCFGBuilder took 10610.60 ms. Allocated memory was 393.2 MB in the beginning and 797.4 MB in the end (delta: 404.2 MB). Free memory was 260.1 MB in the beginning and 438.7 MB in the end (delta: -178.6 MB). Peak memory consumption was 302.1 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,379 INFO L168 Benchmark]: TraceAbstraction took 224350.55 ms. Allocated memory was 797.4 MB in the beginning and 2.0 GB in the end (delta: 1.2 GB). Free memory was 438.7 MB in the beginning and 1.1 GB in the end (delta: -639.6 MB). Peak memory consumption was 568.9 MB. Max. memory is 5.3 GB. [2018-07-22 12:14:05,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 309.3 MB. Free memory is still 274.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2816.71 ms. Allocated memory was 309.3 MB in the beginning and 380.6 MB in the end (delta: 71.3 MB). Free memory was 242.0 MB in the beginning and 267.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 102.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 453.73 ms. Allocated memory is still 380.6 MB. Free memory was 267.8 MB in the beginning and 192.3 MB in the end (delta: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 551.74 ms. Allocated memory was 380.6 MB in the beginning and 393.2 MB in the end (delta: 12.6 MB). Free memory was 192.3 MB in the beginning and 260.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 114.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10610.60 ms. Allocated memory was 393.2 MB in the beginning and 797.4 MB in the end (delta: 404.2 MB). Free memory was 260.1 MB in the beginning and 438.7 MB in the end (delta: -178.6 MB). Peak memory consumption was 302.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 224350.55 ms. Allocated memory was 797.4 MB in the beginning and 2.0 GB in the end (delta: 1.2 GB). Free memory was 438.7 MB in the beginning and 1.1 GB in the end (delta: -639.6 MB). Peak memory consumption was 568.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 428. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem12_label57_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_12-14-05-402.csv Completed graceful shutdown