java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 07:37:52,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 07:37:52,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 07:37:52,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 07:37:52,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 07:37:52,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 07:37:52,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 07:37:52,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 07:37:52,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 07:37:52,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 07:37:52,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 07:37:52,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 07:37:52,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 07:37:52,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 07:37:52,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 07:37:52,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 07:37:52,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 07:37:52,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 07:37:52,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 07:37:52,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 07:37:52,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 07:37:52,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 07:37:52,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 07:37:52,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 07:37:52,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 07:37:52,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 07:37:52,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 07:37:52,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 07:37:52,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 07:37:52,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 07:37:52,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 07:37:52,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 07:37:52,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 07:37:52,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 07:37:52,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 07:37:52,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 07:37:52,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 07:37:52,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 07:37:52,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 07:37:52,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 07:37:52,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 07:37:52,377 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 07:37:52,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 07:37:52,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 07:37:52,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 07:37:52,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 07:37:52,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 07:37:52,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 07:37:52,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 07:37:52,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 07:37:52,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 07:37:52,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 07:37:52,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 07:37:52,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 07:37:52,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 07:37:52,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 07:37:52,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 07:37:52,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 07:37:52,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 07:37:52,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 07:37:52,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 07:37:52,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 07:37:52,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 07:37:52,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 07:37:52,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 07:37:52,428 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 07:37:52,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2019-09-08 07:37:52,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593eb047e/29e07c5264694cfbbaba58856147e0f6/FLAG9f783ceb9 [2019-09-08 07:37:53,024 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 07:37:53,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2019-09-08 07:37:53,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593eb047e/29e07c5264694cfbbaba58856147e0f6/FLAG9f783ceb9 [2019-09-08 07:37:53,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593eb047e/29e07c5264694cfbbaba58856147e0f6 [2019-09-08 07:37:53,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 07:37:53,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 07:37:53,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 07:37:53,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 07:37:53,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 07:37:53,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2740f976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53, skipping insertion in model container [2019-09-08 07:37:53,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,320 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 07:37:53,355 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 07:37:53,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:37:53,707 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 07:37:53,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:37:53,818 INFO L192 MainTranslator]: Completed translation [2019-09-08 07:37:53,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53 WrapperNode [2019-09-08 07:37:53,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 07:37:53,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 07:37:53,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 07:37:53,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 07:37:53,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... [2019-09-08 07:37:53,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 07:37:53,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 07:37:53,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 07:37:53,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 07:37:53,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (1/1) ... No working directory specified, using /storage/repos/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 [2019-09-08 07:37:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 07:37:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 07:37:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-08 07:37:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-08 07:37:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-08 07:37:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2019-09-08 07:37:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2019-09-08 07:37:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-08 07:37:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-08 07:37:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 07:37:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 07:37:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 07:37:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 07:37:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 07:37:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 07:37:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 07:37:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 07:37:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 07:37:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 07:37:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 07:37:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 07:37:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 07:37:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-08 07:37:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 07:37:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 07:37:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 07:37:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 07:37:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 07:37:54,730 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 07:37:54,731 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 07:37:54,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:37:54 BoogieIcfgContainer [2019-09-08 07:37:54,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 07:37:54,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 07:37:54,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 07:37:54,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 07:37:54,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 07:37:53" (1/3) ... [2019-09-08 07:37:54,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc9e60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:37:54, skipping insertion in model container [2019-09-08 07:37:54,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:53" (2/3) ... [2019-09-08 07:37:54,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc9e60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:37:54, skipping insertion in model container [2019-09-08 07:37:54,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:37:54" (3/3) ... [2019-09-08 07:37:54,741 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2019-09-08 07:37:54,751 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 07:37:54,760 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 07:37:54,777 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 07:37:54,808 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 07:37:54,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 07:37:54,809 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 07:37:54,809 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 07:37:54,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 07:37:54,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 07:37:54,810 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 07:37:54,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 07:37:54,810 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 07:37:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-08 07:37:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-08 07:37:54,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:37:54,844 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:37:54,846 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:37:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:37:54,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1830124153, now seen corresponding path program 1 times [2019-09-08 07:37:54,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:37:54,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:37:54,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:37:54,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:37:54,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:37:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:37:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:37:55,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:37:55,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:37:55,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:37:55,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:37:55,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:37:55,295 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-09-08 07:37:55,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:37:55,519 INFO L93 Difference]: Finished difference Result 266 states and 399 transitions. [2019-09-08 07:37:55,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 07:37:55,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2019-09-08 07:37:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:37:55,543 INFO L225 Difference]: With dead ends: 266 [2019-09-08 07:37:55,544 INFO L226 Difference]: Without dead ends: 148 [2019-09-08 07:37:55,572 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 07:37:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-08 07:37:55,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-09-08 07:37:55,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-08 07:37:55,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2019-09-08 07:37:55,627 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 61 [2019-09-08 07:37:55,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:37:55,628 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2019-09-08 07:37:55,628 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:37:55,628 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2019-09-08 07:37:55,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-08 07:37:55,632 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:37:55,632 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:37:55,633 INFO L418 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:37:55,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:37:55,633 INFO L82 PathProgramCache]: Analyzing trace with hash -101399106, now seen corresponding path program 1 times [2019-09-08 07:37:55,634 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:37:55,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:37:55,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:37:55,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:37:55,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:37:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:37:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:37:56,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:37:56,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-08 07:37:56,068 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:37:56,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:37:56,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:37:56,069 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand 13 states. [2019-09-08 07:38:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:01,830 INFO L93 Difference]: Finished difference Result 1424 states and 2143 transitions. [2019-09-08 07:38:01,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-09-08 07:38:01,831 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2019-09-08 07:38:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:01,855 INFO L225 Difference]: With dead ends: 1424 [2019-09-08 07:38:01,855 INFO L226 Difference]: Without dead ends: 1320 [2019-09-08 07:38:01,860 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=618, Invalid=2034, Unknown=0, NotChecked=0, Total=2652 [2019-09-08 07:38:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2019-09-08 07:38:02,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1098. [2019-09-08 07:38:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2019-09-08 07:38:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1617 transitions. [2019-09-08 07:38:02,012 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1617 transitions. Word has length 92 [2019-09-08 07:38:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:02,012 INFO L475 AbstractCegarLoop]: Abstraction has 1098 states and 1617 transitions. [2019-09-08 07:38:02,013 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:38:02,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1617 transitions. [2019-09-08 07:38:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 07:38:02,021 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:02,021 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:02,021 INFO L418 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1626399125, now seen corresponding path program 1 times [2019-09-08 07:38:02,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:02,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:02,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:02,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:02,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:02,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:02,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 07:38:02,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 07:38:02,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 07:38:02,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 07:38:02,228 INFO L87 Difference]: Start difference. First operand 1098 states and 1617 transitions. Second operand 11 states. [2019-09-08 07:38:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:02,395 INFO L93 Difference]: Finished difference Result 1262 states and 1884 transitions. [2019-09-08 07:38:02,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 07:38:02,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2019-09-08 07:38:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:02,406 INFO L225 Difference]: With dead ends: 1262 [2019-09-08 07:38:02,406 INFO L226 Difference]: Without dead ends: 1260 [2019-09-08 07:38:02,408 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 07:38:02,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2019-09-08 07:38:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1170. [2019-09-08 07:38:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2019-09-08 07:38:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1689 transitions. [2019-09-08 07:38:02,485 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1689 transitions. Word has length 93 [2019-09-08 07:38:02,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:02,486 INFO L475 AbstractCegarLoop]: Abstraction has 1170 states and 1689 transitions. [2019-09-08 07:38:02,486 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 07:38:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1689 transitions. [2019-09-08 07:38:02,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 07:38:02,491 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:02,491 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:02,492 INFO L418 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:02,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:02,492 INFO L82 PathProgramCache]: Analyzing trace with hash -76774090, now seen corresponding path program 1 times [2019-09-08 07:38:02,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:02,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:02,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:02,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:02,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:02,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:02,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 07:38:02,669 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 07:38:02,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 07:38:02,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 07:38:02,670 INFO L87 Difference]: Start difference. First operand 1170 states and 1689 transitions. Second operand 7 states. [2019-09-08 07:38:03,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:03,812 INFO L93 Difference]: Finished difference Result 5180 states and 7658 transitions. [2019-09-08 07:38:03,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:03,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-09-08 07:38:03,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:03,839 INFO L225 Difference]: With dead ends: 5180 [2019-09-08 07:38:03,839 INFO L226 Difference]: Without dead ends: 4054 [2019-09-08 07:38:03,847 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-09-08 07:38:03,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4054 states. [2019-09-08 07:38:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4054 to 4048. [2019-09-08 07:38:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4048 states. [2019-09-08 07:38:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5951 transitions. [2019-09-08 07:38:04,060 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5951 transitions. Word has length 94 [2019-09-08 07:38:04,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:04,061 INFO L475 AbstractCegarLoop]: Abstraction has 4048 states and 5951 transitions. [2019-09-08 07:38:04,061 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 07:38:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5951 transitions. [2019-09-08 07:38:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 07:38:04,065 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:04,065 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:04,065 INFO L418 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:04,066 INFO L82 PathProgramCache]: Analyzing trace with hash 976113655, now seen corresponding path program 1 times [2019-09-08 07:38:04,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:04,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:04,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:04,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:04,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:04,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:04,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:38:04,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:38:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:38:04,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:38:04,179 INFO L87 Difference]: Start difference. First operand 4048 states and 5951 transitions. Second operand 9 states. [2019-09-08 07:38:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:05,174 INFO L93 Difference]: Finished difference Result 8534 states and 12623 transitions. [2019-09-08 07:38:05,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:05,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2019-09-08 07:38:05,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:05,210 INFO L225 Difference]: With dead ends: 8534 [2019-09-08 07:38:05,211 INFO L226 Difference]: Without dead ends: 5509 [2019-09-08 07:38:05,222 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:38:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5509 states. [2019-09-08 07:38:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5509 to 4457. [2019-09-08 07:38:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4457 states. [2019-09-08 07:38:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 6561 transitions. [2019-09-08 07:38:05,463 INFO L78 Accepts]: Start accepts. Automaton has 4457 states and 6561 transitions. Word has length 95 [2019-09-08 07:38:05,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:05,466 INFO L475 AbstractCegarLoop]: Abstraction has 4457 states and 6561 transitions. [2019-09-08 07:38:05,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:38:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4457 states and 6561 transitions. [2019-09-08 07:38:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 07:38:05,474 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:05,474 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:05,474 INFO L418 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:05,475 INFO L82 PathProgramCache]: Analyzing trace with hash -26017575, now seen corresponding path program 1 times [2019-09-08 07:38:05,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:05,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:05,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:05,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:05,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:05,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:05,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:38:05,638 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:38:05,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:38:05,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:38:05,639 INFO L87 Difference]: Start difference. First operand 4457 states and 6561 transitions. Second operand 9 states. [2019-09-08 07:38:06,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:06,854 INFO L93 Difference]: Finished difference Result 11349 states and 16742 transitions. [2019-09-08 07:38:06,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:06,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2019-09-08 07:38:06,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:06,894 INFO L225 Difference]: With dead ends: 11349 [2019-09-08 07:38:06,894 INFO L226 Difference]: Without dead ends: 6957 [2019-09-08 07:38:06,910 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:38:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2019-09-08 07:38:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 4436. [2019-09-08 07:38:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states. [2019-09-08 07:38:07,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 6527 transitions. [2019-09-08 07:38:07,184 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 6527 transitions. Word has length 95 [2019-09-08 07:38:07,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:07,192 INFO L475 AbstractCegarLoop]: Abstraction has 4436 states and 6527 transitions. [2019-09-08 07:38:07,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:38:07,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 6527 transitions. [2019-09-08 07:38:07,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 07:38:07,202 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:07,206 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:07,207 INFO L418 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:07,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:07,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1571705605, now seen corresponding path program 1 times [2019-09-08 07:38:07,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:07,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:07,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:07,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:07,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:07,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:07,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:38:07,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:38:07,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:38:07,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:38:07,453 INFO L87 Difference]: Start difference. First operand 4436 states and 6527 transitions. Second operand 9 states. [2019-09-08 07:38:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:08,461 INFO L93 Difference]: Finished difference Result 10530 states and 15475 transitions. [2019-09-08 07:38:08,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:08,462 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2019-09-08 07:38:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:08,523 INFO L225 Difference]: With dead ends: 10530 [2019-09-08 07:38:08,524 INFO L226 Difference]: Without dead ends: 6195 [2019-09-08 07:38:08,539 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:38:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2019-09-08 07:38:08,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 4430. [2019-09-08 07:38:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4430 states. [2019-09-08 07:38:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 6517 transitions. [2019-09-08 07:38:08,867 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 6517 transitions. Word has length 95 [2019-09-08 07:38:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:08,867 INFO L475 AbstractCegarLoop]: Abstraction has 4430 states and 6517 transitions. [2019-09-08 07:38:08,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:38:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 6517 transitions. [2019-09-08 07:38:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 07:38:08,872 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:08,873 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:08,873 INFO L418 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:08,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:08,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1115354565, now seen corresponding path program 1 times [2019-09-08 07:38:08,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:08,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:08,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:08,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:08,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:09,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:09,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:38:09,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:38:09,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:38:09,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:38:09,077 INFO L87 Difference]: Start difference. First operand 4430 states and 6517 transitions. Second operand 9 states. [2019-09-08 07:38:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:10,048 INFO L93 Difference]: Finished difference Result 9711 states and 14222 transitions. [2019-09-08 07:38:10,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:10,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2019-09-08 07:38:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:10,071 INFO L225 Difference]: With dead ends: 9711 [2019-09-08 07:38:10,071 INFO L226 Difference]: Without dead ends: 5416 [2019-09-08 07:38:10,082 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:38:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2019-09-08 07:38:10,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 4427. [2019-09-08 07:38:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4427 states. [2019-09-08 07:38:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 6510 transitions. [2019-09-08 07:38:10,299 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 6510 transitions. Word has length 95 [2019-09-08 07:38:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:10,299 INFO L475 AbstractCegarLoop]: Abstraction has 4427 states and 6510 transitions. [2019-09-08 07:38:10,299 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:38:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 6510 transitions. [2019-09-08 07:38:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 07:38:10,302 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:10,302 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:38:10,303 INFO L418 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash 601942959, now seen corresponding path program 1 times [2019-09-08 07:38:10,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:10,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:10,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:10,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:10,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:10,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:38:10,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:38:10,433 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:38:10,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:38:10,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:38:10,434 INFO L87 Difference]: Start difference. First operand 4427 states and 6510 transitions. Second operand 9 states. [2019-09-08 07:38:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:11,509 INFO L93 Difference]: Finished difference Result 8942 states and 13060 transitions. [2019-09-08 07:38:11,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:38:11,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2019-09-08 07:38:11,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:11,529 INFO L225 Difference]: With dead ends: 8942 [2019-09-08 07:38:11,529 INFO L226 Difference]: Without dead ends: 4684 [2019-09-08 07:38:11,540 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:38:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2019-09-08 07:38:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4441. [2019-09-08 07:38:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4441 states. [2019-09-08 07:38:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 6529 transitions. [2019-09-08 07:38:11,716 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 6529 transitions. Word has length 95 [2019-09-08 07:38:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:11,716 INFO L475 AbstractCegarLoop]: Abstraction has 4441 states and 6529 transitions. [2019-09-08 07:38:11,717 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:38:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 6529 transitions. [2019-09-08 07:38:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-08 07:38:11,723 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:11,723 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:38:11,724 INFO L418 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:11,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:11,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1234631467, now seen corresponding path program 1 times [2019-09-08 07:38:11,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:11,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:11,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:11,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:11,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 07:38:11,820 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:38:11,821 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-09-08 07:38:11,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:11,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 07:38:11,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:38:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-08 07:38:12,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:38:12,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 07:38:12,099 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 07:38:12,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 07:38:12,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:38:12,105 INFO L87 Difference]: Start difference. First operand 4441 states and 6529 transitions. Second operand 8 states. [2019-09-08 07:38:13,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:13,085 INFO L93 Difference]: Finished difference Result 9274 states and 13658 transitions. [2019-09-08 07:38:13,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 07:38:13,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-09-08 07:38:13,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:13,110 INFO L225 Difference]: With dead ends: 9274 [2019-09-08 07:38:13,110 INFO L226 Difference]: Without dead ends: 5937 [2019-09-08 07:38:13,122 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-09-08 07:38:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5937 states. [2019-09-08 07:38:13,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5937 to 5768. [2019-09-08 07:38:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5768 states. [2019-09-08 07:38:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8388 transitions. [2019-09-08 07:38:13,594 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8388 transitions. Word has length 145 [2019-09-08 07:38:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:13,594 INFO L475 AbstractCegarLoop]: Abstraction has 5768 states and 8388 transitions. [2019-09-08 07:38:13,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 07:38:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8388 transitions. [2019-09-08 07:38:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-08 07:38:13,599 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:13,600 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:38:13,600 INFO L418 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:13,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:13,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1644697079, now seen corresponding path program 1 times [2019-09-08 07:38:13,601 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:13,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:13,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:13,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:13,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 07:38:13,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:38:13,730 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-09-08 07:38:13,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:13,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 07:38:13,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:38:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:14,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:38:14,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2019-09-08 07:38:14,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 07:38:14,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 07:38:14,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 07:38:14,010 INFO L87 Difference]: Start difference. First operand 5768 states and 8388 transitions. Second operand 4 states. [2019-09-08 07:38:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:14,689 INFO L93 Difference]: Finished difference Result 16392 states and 24032 transitions. [2019-09-08 07:38:14,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 07:38:14,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2019-09-08 07:38:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:14,745 INFO L225 Difference]: With dead ends: 16392 [2019-09-08 07:38:14,745 INFO L226 Difference]: Without dead ends: 10749 [2019-09-08 07:38:14,773 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 07:38:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10749 states. [2019-09-08 07:38:15,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10749 to 10747. [2019-09-08 07:38:15,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10747 states. [2019-09-08 07:38:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10747 states to 10747 states and 15494 transitions. [2019-09-08 07:38:15,484 INFO L78 Accepts]: Start accepts. Automaton has 10747 states and 15494 transitions. Word has length 147 [2019-09-08 07:38:15,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:15,484 INFO L475 AbstractCegarLoop]: Abstraction has 10747 states and 15494 transitions. [2019-09-08 07:38:15,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 07:38:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 10747 states and 15494 transitions. [2019-09-08 07:38:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-08 07:38:15,491 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:15,491 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:38:15,492 INFO L418 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash 642565849, now seen corresponding path program 1 times [2019-09-08 07:38:15,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:15,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:15,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:15,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:15,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-08 07:38:15,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:38:15,761 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2019-09-08 07:38:15,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:15,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:38:15,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:38:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 07:38:16,194 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:38:16,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2019-09-08 07:38:16,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:38:16,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:38:16,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:38:16,196 INFO L87 Difference]: Start difference. First operand 10747 states and 15494 transitions. Second operand 13 states. [2019-09-08 07:38:20,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:20,506 INFO L93 Difference]: Finished difference Result 47107 states and 68691 transitions. [2019-09-08 07:38:20,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 07:38:20,507 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 147 [2019-09-08 07:38:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:20,643 INFO L225 Difference]: With dead ends: 47107 [2019-09-08 07:38:20,644 INFO L226 Difference]: Without dead ends: 36556 [2019-09-08 07:38:20,688 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=504, Invalid=1476, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 07:38:20,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36556 states. [2019-09-08 07:38:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36556 to 29130. [2019-09-08 07:38:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29130 states. [2019-09-08 07:38:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29130 states to 29130 states and 41228 transitions. [2019-09-08 07:38:23,272 INFO L78 Accepts]: Start accepts. Automaton has 29130 states and 41228 transitions. Word has length 147 [2019-09-08 07:38:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:23,273 INFO L475 AbstractCegarLoop]: Abstraction has 29130 states and 41228 transitions. [2019-09-08 07:38:23,273 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:38:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 29130 states and 41228 transitions. [2019-09-08 07:38:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-08 07:38:23,284 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:23,285 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:38:23,285 INFO L418 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:23,285 INFO L82 PathProgramCache]: Analyzing trace with hash 788923494, now seen corresponding path program 1 times [2019-09-08 07:38:23,286 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:23,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:23,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:23,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:23,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-08 07:38:23,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:38:23,395 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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) [2019-09-08 07:38:23,412 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 [2019-09-08 07:38:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:23,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:38:23,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:38:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:23,870 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:38:23,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2019-09-08 07:38:23,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:38:23,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:38:23,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:38:23,874 INFO L87 Difference]: Start difference. First operand 29130 states and 41228 transitions. Second operand 13 states. [2019-09-08 07:38:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:29,855 INFO L93 Difference]: Finished difference Result 145960 states and 210234 transitions. [2019-09-08 07:38:29,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 07:38:29,856 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 148 [2019-09-08 07:38:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:38:32,046 INFO L225 Difference]: With dead ends: 145960 [2019-09-08 07:38:32,047 INFO L226 Difference]: Without dead ends: 117256 [2019-09-08 07:38:32,141 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=504, Invalid=1476, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 07:38:32,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117256 states. [2019-09-08 07:38:37,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117256 to 95693. [2019-09-08 07:38:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95693 states. [2019-09-08 07:38:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95693 states to 95693 states and 133445 transitions. [2019-09-08 07:38:37,496 INFO L78 Accepts]: Start accepts. Automaton has 95693 states and 133445 transitions. Word has length 148 [2019-09-08 07:38:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:38:37,497 INFO L475 AbstractCegarLoop]: Abstraction has 95693 states and 133445 transitions. [2019-09-08 07:38:37,497 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:38:37,497 INFO L276 IsEmpty]: Start isEmpty. Operand 95693 states and 133445 transitions. [2019-09-08 07:38:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-08 07:38:37,526 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:38:37,527 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:38:37,527 INFO L418 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:38:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:38:37,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1694389677, now seen corresponding path program 1 times [2019-09-08 07:38:37,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:38:37,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:38:37,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:37,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:38:37,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:38:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 07:38:37,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:38:37,629 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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) [2019-09-08 07:38:37,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:38:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:38:37,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:38:37,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:38:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:38:37,955 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:38:37,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2019-09-08 07:38:37,958 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:38:37,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:38:37,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:38:37,959 INFO L87 Difference]: Start difference. First operand 95693 states and 133445 transitions. Second operand 13 states. [2019-09-08 07:38:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:38:59,765 INFO L93 Difference]: Finished difference Result 448232 states and 634118 transitions. [2019-09-08 07:38:59,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 07:38:59,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 149 [2019-09-08 07:38:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:39:00,907 INFO L225 Difference]: With dead ends: 448232 [2019-09-08 07:39:00,907 INFO L226 Difference]: Without dead ends: 353451 [2019-09-08 07:39:01,117 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=504, Invalid=1476, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 07:39:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353451 states. [2019-09-08 07:39:23,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353451 to 312441. [2019-09-08 07:39:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312441 states. [2019-09-08 07:39:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312441 states to 312441 states and 429862 transitions. [2019-09-08 07:39:24,057 INFO L78 Accepts]: Start accepts. Automaton has 312441 states and 429862 transitions. Word has length 149 [2019-09-08 07:39:24,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:39:24,058 INFO L475 AbstractCegarLoop]: Abstraction has 312441 states and 429862 transitions. [2019-09-08 07:39:24,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:39:24,058 INFO L276 IsEmpty]: Start isEmpty. Operand 312441 states and 429862 transitions. [2019-09-08 07:39:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-08 07:39:24,125 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:39:24,125 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:39:24,126 INFO L418 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:39:24,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:39:24,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1975704536, now seen corresponding path program 1 times [2019-09-08 07:39:24,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:39:24,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:39:24,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:39:24,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:39:24,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:39:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:39:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-08 07:39:24,231 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:39:24,231 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:39:24,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:39:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:39:24,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:39:24,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:39:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:39:24,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:39:24,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2019-09-08 07:39:24,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:39:24,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:39:24,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:39:24,602 INFO L87 Difference]: Start difference. First operand 312441 states and 429862 transitions. Second operand 13 states. [2019-09-08 07:40:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:40:19,032 INFO L93 Difference]: Finished difference Result 1381085 states and 1922255 transitions. [2019-09-08 07:40:19,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 07:40:19,033 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 150 [2019-09-08 07:40:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:40:32,709 INFO L225 Difference]: With dead ends: 1381085 [2019-09-08 07:40:32,709 INFO L226 Difference]: Without dead ends: 1070402 [2019-09-08 07:40:33,304 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=504, Invalid=1476, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 07:40:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070402 states. [2019-09-08 07:42:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070402 to 1014155. [2019-09-08 07:42:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014155 states. [2019-09-08 07:42:20,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014155 states to 1014155 states and 1378973 transitions. [2019-09-08 07:42:20,924 INFO L78 Accepts]: Start accepts. Automaton has 1014155 states and 1378973 transitions. Word has length 150 [2019-09-08 07:42:20,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:42:20,924 INFO L475 AbstractCegarLoop]: Abstraction has 1014155 states and 1378973 transitions. [2019-09-08 07:42:20,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:42:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1014155 states and 1378973 transitions. [2019-09-08 07:42:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-08 07:42:21,096 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:42:21,097 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2019-09-08 07:42:21,097 INFO L418 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:42:21,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:42:21,097 INFO L82 PathProgramCache]: Analyzing trace with hash -506049089, now seen corresponding path program 1 times [2019-09-08 07:42:21,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:42:21,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:42:21,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:42:21,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:42:21,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:42:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:42:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-08 07:42:21,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:42:21,247 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:42:21,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:42:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:42:21,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:42:21,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:42:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:42:21,575 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:42:21,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2019-09-08 07:42:21,576 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 07:42:21,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 07:42:21,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-08 07:42:21,577 INFO L87 Difference]: Start difference. First operand 1014155 states and 1378973 transitions. Second operand 18 states. [2019-09-08 07:44:10,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:44:10,200 INFO L93 Difference]: Finished difference Result 1832817 states and 2483446 transitions. [2019-09-08 07:44:10,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 07:44:10,200 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 152 [2019-09-08 07:44:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:44:15,691 INFO L225 Difference]: With dead ends: 1832817 [2019-09-08 07:44:15,691 INFO L226 Difference]: Without dead ends: 1493557 [2019-09-08 07:44:16,354 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2019-09-08 07:44:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493557 states.