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.3.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 07:33:51,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 07:33:51,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 07:33:51,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 07:33:51,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 07:33:51,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 07:33:51,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 07:33:51,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 07:33:51,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 07:33:51,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 07:33:51,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 07:33:51,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 07:33:51,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 07:33:51,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 07:33:51,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 07:33:51,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 07:33:51,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 07:33:51,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 07:33:51,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 07:33:51,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 07:33:51,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 07:33:51,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 07:33:51,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 07:33:51,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 07:33:51,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 07:33:51,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 07:33:51,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 07:33:51,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 07:33:51,728 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 07:33:51,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 07:33:51,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 07:33:51,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 07:33:51,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 07:33:51,755 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 07:33:51,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 07:33:51,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 07:33:51,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 07:33:51,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 07:33:51,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 07:33:51,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 07:33:51,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 07:33:51,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 07:33:51,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 07:33:51,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 07:33:51,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 07:33:51,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 07:33:51,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 07:33:51,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 07:33:51,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 07:33:51,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 07:33:51,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 07:33:51,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 07:33:51,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 07:33:51,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 07:33:51,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 07:33:51,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 07:33:51,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 07:33:51,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 07:33:51,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 07:33:51,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 07:33:51,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 07:33:51,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 07:33:51,812 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 07:33:51,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c [2019-09-08 07:33:51,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d6f9e0a/172ed4e06c9e45d2ab8e93f4913d831e/FLAG61f5532c1 [2019-09-08 07:33:52,354 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 07:33:52,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c [2019-09-08 07:33:52,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d6f9e0a/172ed4e06c9e45d2ab8e93f4913d831e/FLAG61f5532c1 [2019-09-08 07:33:52,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d6f9e0a/172ed4e06c9e45d2ab8e93f4913d831e [2019-09-08 07:33:52,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 07:33:52,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 07:33:52,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 07:33:52,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 07:33:52,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 07:33:52,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:33:52" (1/1) ... [2019-09-08 07:33:52,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a11818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:52, skipping insertion in model container [2019-09-08 07:33:52,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:33:52" (1/1) ... [2019-09-08 07:33:52,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 07:33:52,749 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 07:33:52,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:33:52,989 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 07:33:53,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:33:53,180 INFO L192 MainTranslator]: Completed translation [2019-09-08 07:33:53,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53 WrapperNode [2019-09-08 07:33:53,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 07:33:53,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 07:33:53,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 07:33:53,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 07:33:53,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (1/1) ... [2019-09-08 07:33:53,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 07:33:53,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 07:33:53,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 07:33:53,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 07:33:53,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (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 07:33:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 07:33:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 07:33:53,294 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-08 07:33:53,294 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-08 07:33:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-08 07:33:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-08 07:33:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-08 07:33:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 07:33:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 07:33:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 07:33:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 07:33:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 07:33:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 07:33:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 07:33:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 07:33:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 07:33:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 07:33:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 07:33:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 07:33:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 07:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 07:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 07:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 07:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 07:33:53,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 07:33:53,915 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 07:33:53,916 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 07:33:53,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:33:53 BoogieIcfgContainer [2019-09-08 07:33:53,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 07:33:53,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 07:33:53,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 07:33:53,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 07:33:53,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 07:33:52" (1/3) ... [2019-09-08 07:33:53,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30487d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:33:53, skipping insertion in model container [2019-09-08 07:33:53,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:33:53" (2/3) ... [2019-09-08 07:33:53,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30487d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:33:53, skipping insertion in model container [2019-09-08 07:33:53,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:33:53" (3/3) ... [2019-09-08 07:33:53,932 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c [2019-09-08 07:33:53,944 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 07:33:53,955 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 07:33:53,974 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 07:33:54,017 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 07:33:54,018 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 07:33:54,018 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 07:33:54,018 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 07:33:54,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 07:33:54,019 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 07:33:54,019 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 07:33:54,019 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 07:33:54,019 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 07:33:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2019-09-08 07:33:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 07:33:54,057 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:54,058 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] [2019-09-08 07:33:54,061 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:54,068 INFO L82 PathProgramCache]: Analyzing trace with hash -285098960, now seen corresponding path program 1 times [2019-09-08 07:33:54,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:54,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:54,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:54,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:54,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:54,458 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 07:33:54,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:54,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:33:54,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:33:54,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:33:54,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:33:54,485 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 5 states. [2019-09-08 07:33:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:54,623 INFO L93 Difference]: Finished difference Result 174 states and 255 transitions. [2019-09-08 07:33:54,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 07:33:54,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-08 07:33:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:54,638 INFO L225 Difference]: With dead ends: 174 [2019-09-08 07:33:54,638 INFO L226 Difference]: Without dead ends: 97 [2019-09-08 07:33:54,643 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 07:33:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-09-08 07:33:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-09-08 07:33:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-08 07:33:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2019-09-08 07:33:54,700 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 126 transitions. Word has length 47 [2019-09-08 07:33:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:33:54,701 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 126 transitions. [2019-09-08 07:33:54,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:33:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 126 transitions. [2019-09-08 07:33:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-08 07:33:54,704 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:54,705 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] [2019-09-08 07:33:54,705 INFO L418 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:54,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1988086938, now seen corresponding path program 1 times [2019-09-08 07:33:54,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:54,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:54,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:54,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:54,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:55,008 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 07:33:55,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:55,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:33:55,010 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:33:55,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:33:55,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:33:55,012 INFO L87 Difference]: Start difference. First operand 97 states and 126 transitions. Second operand 9 states. [2019-09-08 07:33:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:56,829 INFO L93 Difference]: Finished difference Result 608 states and 874 transitions. [2019-09-08 07:33:56,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-08 07:33:56,829 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-09-08 07:33:56,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:56,840 INFO L225 Difference]: With dead ends: 608 [2019-09-08 07:33:56,840 INFO L226 Difference]: Without dead ends: 540 [2019-09-08 07:33:56,843 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2019-09-08 07:33:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-09-08 07:33:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 440. [2019-09-08 07:33:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-09-08 07:33:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 627 transitions. [2019-09-08 07:33:56,932 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 627 transitions. Word has length 63 [2019-09-08 07:33:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:33:56,936 INFO L475 AbstractCegarLoop]: Abstraction has 440 states and 627 transitions. [2019-09-08 07:33:56,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:33:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 627 transitions. [2019-09-08 07:33:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:33:56,945 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:56,945 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] [2019-09-08 07:33:56,945 INFO L418 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:56,946 INFO L82 PathProgramCache]: Analyzing trace with hash 88569194, now seen corresponding path program 1 times [2019-09-08 07:33:56,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:56,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:56,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:56,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:56,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:57,126 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 07:33:57,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:57,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 07:33:57,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 07:33:57,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 07:33:57,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:33:57,129 INFO L87 Difference]: Start difference. First operand 440 states and 627 transitions. Second operand 8 states. [2019-09-08 07:33:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:57,269 INFO L93 Difference]: Finished difference Result 528 states and 759 transitions. [2019-09-08 07:33:57,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 07:33:57,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-09-08 07:33:57,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:57,280 INFO L225 Difference]: With dead ends: 528 [2019-09-08 07:33:57,280 INFO L226 Difference]: Without dead ends: 526 [2019-09-08 07:33:57,282 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-09-08 07:33:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-09-08 07:33:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 485. [2019-09-08 07:33:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-09-08 07:33:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 672 transitions. [2019-09-08 07:33:57,353 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 672 transitions. Word has length 64 [2019-09-08 07:33:57,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:33:57,354 INFO L475 AbstractCegarLoop]: Abstraction has 485 states and 672 transitions. [2019-09-08 07:33:57,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 07:33:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 672 transitions. [2019-09-08 07:33:57,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 07:33:57,357 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:57,358 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] [2019-09-08 07:33:57,358 INFO L418 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:57,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:57,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1620385214, now seen corresponding path program 1 times [2019-09-08 07:33:57,358 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:57,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:57,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:57,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:57,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:57,467 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 07:33:57,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:57,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:33:57,469 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:33:57,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:33:57,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:33:57,469 INFO L87 Difference]: Start difference. First operand 485 states and 672 transitions. Second operand 5 states. [2019-09-08 07:33:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:57,943 INFO L93 Difference]: Finished difference Result 1657 states and 2363 transitions. [2019-09-08 07:33:57,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:33:57,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-08 07:33:57,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:57,959 INFO L225 Difference]: With dead ends: 1657 [2019-09-08 07:33:57,959 INFO L226 Difference]: Without dead ends: 1201 [2019-09-08 07:33:57,967 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 07:33:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2019-09-08 07:33:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1174. [2019-09-08 07:33:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-09-08 07:33:58,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1653 transitions. [2019-09-08 07:33:58,065 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1653 transitions. Word has length 65 [2019-09-08 07:33:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:33:58,068 INFO L475 AbstractCegarLoop]: Abstraction has 1174 states and 1653 transitions. [2019-09-08 07:33:58,069 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:33:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1653 transitions. [2019-09-08 07:33:58,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 07:33:58,072 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:58,073 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] [2019-09-08 07:33:58,073 INFO L418 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:58,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1996127695, now seen corresponding path program 1 times [2019-09-08 07:33:58,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:58,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:58,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:58,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:58,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:58,250 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 07:33:58,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:58,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:33:58,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:33:58,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:33:58,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:33:58,253 INFO L87 Difference]: Start difference. First operand 1174 states and 1653 transitions. Second operand 9 states. [2019-09-08 07:33:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:58,859 INFO L93 Difference]: Finished difference Result 2786 states and 3936 transitions. [2019-09-08 07:33:58,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:33:58,860 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2019-09-08 07:33:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:58,871 INFO L225 Difference]: With dead ends: 2786 [2019-09-08 07:33:58,871 INFO L226 Difference]: Without dead ends: 1641 [2019-09-08 07:33:58,876 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 07:33:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2019-09-08 07:33:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1243. [2019-09-08 07:33:58,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2019-09-08 07:33:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1747 transitions. [2019-09-08 07:33:58,974 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1747 transitions. Word has length 66 [2019-09-08 07:33:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:33:58,974 INFO L475 AbstractCegarLoop]: Abstraction has 1243 states and 1747 transitions. [2019-09-08 07:33:58,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:33:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1747 transitions. [2019-09-08 07:33:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 07:33:58,977 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:33:58,977 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] [2019-09-08 07:33:58,977 INFO L418 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:33:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:33:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash 32886011, now seen corresponding path program 1 times [2019-09-08 07:33:58,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:33:58,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:33:58,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:58,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:33:58,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:33:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:33:59,067 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 07:33:59,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:33:59,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:33:59,068 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:33:59,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:33:59,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:33:59,069 INFO L87 Difference]: Start difference. First operand 1243 states and 1747 transitions. Second operand 9 states. [2019-09-08 07:33:59,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:33:59,891 INFO L93 Difference]: Finished difference Result 2573 states and 3583 transitions. [2019-09-08 07:33:59,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:33:59,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2019-09-08 07:33:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:33:59,902 INFO L225 Difference]: With dead ends: 2573 [2019-09-08 07:33:59,903 INFO L226 Difference]: Without dead ends: 1402 [2019-09-08 07:33:59,907 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 07:33:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2019-09-08 07:34:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1294. [2019-09-08 07:34:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1294 states. [2019-09-08 07:34:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1819 transitions. [2019-09-08 07:34:00,023 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1819 transitions. Word has length 66 [2019-09-08 07:34:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:00,023 INFO L475 AbstractCegarLoop]: Abstraction has 1294 states and 1819 transitions. [2019-09-08 07:34:00,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:34:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1819 transitions. [2019-09-08 07:34:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 07:34:00,031 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:00,033 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] [2019-09-08 07:34:00,033 INFO L418 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:00,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 321716607, now seen corresponding path program 1 times [2019-09-08 07:34:00,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:00,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:00,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:00,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:00,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:00,218 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 07:34:00,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:34:00,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:34:00,219 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:34:00,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:34:00,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:34:00,221 INFO L87 Difference]: Start difference. First operand 1294 states and 1819 transitions. Second operand 5 states. [2019-09-08 07:34:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:00,810 INFO L93 Difference]: Finished difference Result 2589 states and 3645 transitions. [2019-09-08 07:34:00,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:34:00,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2019-09-08 07:34:00,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:00,825 INFO L225 Difference]: With dead ends: 2589 [2019-09-08 07:34:00,826 INFO L226 Difference]: Without dead ends: 1678 [2019-09-08 07:34:00,831 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:34:00,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2019-09-08 07:34:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1660. [2019-09-08 07:34:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2019-09-08 07:34:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2303 transitions. [2019-09-08 07:34:00,998 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2303 transitions. Word has length 67 [2019-09-08 07:34:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:00,999 INFO L475 AbstractCegarLoop]: Abstraction has 1660 states and 2303 transitions. [2019-09-08 07:34:00,999 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:34:00,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2303 transitions. [2019-09-08 07:34:01,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 07:34:01,001 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:01,001 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] [2019-09-08 07:34:01,002 INFO L418 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:01,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:01,002 INFO L82 PathProgramCache]: Analyzing trace with hash 426550200, now seen corresponding path program 1 times [2019-09-08 07:34:01,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:01,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:01,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:01,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:01,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-08 07:34:01,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:01,087 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) [2019-09-08 07:34:01,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:34:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:01,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:34:01,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:34:01,467 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:34:01,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2019-09-08 07:34:01,470 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:34:01,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:34:01,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:34:01,471 INFO L87 Difference]: Start difference. First operand 1660 states and 2303 transitions. Second operand 13 states. [2019-09-08 07:34:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:03,406 INFO L93 Difference]: Finished difference Result 4077 states and 5640 transitions. [2019-09-08 07:34:03,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-09-08 07:34:03,407 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2019-09-08 07:34:03,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:03,424 INFO L225 Difference]: With dead ends: 4077 [2019-09-08 07:34:03,424 INFO L226 Difference]: Without dead ends: 2395 [2019-09-08 07:34:03,431 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=375, Invalid=1107, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 07:34:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2019-09-08 07:34:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2083. [2019-09-08 07:34:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2019-09-08 07:34:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2812 transitions. [2019-09-08 07:34:03,625 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2812 transitions. Word has length 102 [2019-09-08 07:34:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:03,627 INFO L475 AbstractCegarLoop]: Abstraction has 2083 states and 2812 transitions. [2019-09-08 07:34:03,628 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:34:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2812 transitions. [2019-09-08 07:34:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-08 07:34:03,631 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:03,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:03,632 INFO L418 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:03,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:03,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1090545482, now seen corresponding path program 1 times [2019-09-08 07:34:03,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:03,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:03,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:03,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:03,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 07:34:03,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:03,798 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 07:34:03,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:03,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 07:34:03,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Stream closed [2019-09-08 07:34:04,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:34:04,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 07:34:04,089 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 07:34:04,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 07:34:04,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:34:04,090 INFO L87 Difference]: Start difference. First operand 2083 states and 2812 transitions. Second operand 8 states. [2019-09-08 07:34:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:04,835 INFO L93 Difference]: Finished difference Result 5852 states and 7990 transitions. [2019-09-08 07:34:04,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 07:34:04,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-08 07:34:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:04,859 INFO L225 Difference]: With dead ends: 5852 [2019-09-08 07:34:04,859 INFO L226 Difference]: Without dead ends: 3831 [2019-09-08 07:34:04,867 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 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 07:34:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2019-09-08 07:34:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3591. [2019-09-08 07:34:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3591 states. [2019-09-08 07:34:05,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4796 transitions. [2019-09-08 07:34:05,135 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4796 transitions. Word has length 103 [2019-09-08 07:34:05,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:05,135 INFO L475 AbstractCegarLoop]: Abstraction has 3591 states and 4796 transitions. [2019-09-08 07:34:05,136 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 07:34:05,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4796 transitions. [2019-09-08 07:34:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:34:05,138 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:05,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:05,139 INFO L418 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:05,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:05,139 INFO L82 PathProgramCache]: Analyzing trace with hash -631139325, now seen corresponding path program 1 times [2019-09-08 07:34:05,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:05,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:05,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:05,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:05,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-08 07:34:05,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:05,259 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) [2019-09-08 07:34:05,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:34:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:05,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 07:34:05,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-08 07:34:05,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:34:05,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 07:34:05,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 07:34:05,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 07:34:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:34:05,480 INFO L87 Difference]: Start difference. First operand 3591 states and 4796 transitions. Second operand 8 states. [2019-09-08 07:34:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:06,192 INFO L93 Difference]: Finished difference Result 10199 states and 13670 transitions. [2019-09-08 07:34:06,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 07:34:06,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-09-08 07:34:06,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:06,231 INFO L225 Difference]: With dead ends: 10199 [2019-09-08 07:34:06,232 INFO L226 Difference]: Without dead ends: 6694 [2019-09-08 07:34:06,243 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 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 07:34:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2019-09-08 07:34:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 6300. [2019-09-08 07:34:06,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6300 states. [2019-09-08 07:34:06,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 8203 transitions. [2019-09-08 07:34:06,734 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 8203 transitions. Word has length 104 [2019-09-08 07:34:06,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:06,734 INFO L475 AbstractCegarLoop]: Abstraction has 6300 states and 8203 transitions. [2019-09-08 07:34:06,734 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 07:34:06,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 8203 transitions. [2019-09-08 07:34:06,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-08 07:34:06,738 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:06,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:06,738 INFO L418 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:06,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash 822537722, now seen corresponding path program 1 times [2019-09-08 07:34:06,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:06,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:06,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:06,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:06,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 07:34:06,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:06,863 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 07:34:06,888 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 07:34:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:06,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 07:34:06,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-08 07:34:07,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:34:07,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 10 [2019-09-08 07:34:07,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 07:34:07,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 07:34:07,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 07:34:07,131 INFO L87 Difference]: Start difference. First operand 6300 states and 8203 transitions. Second operand 10 states. [2019-09-08 07:34:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:09,120 INFO L93 Difference]: Finished difference Result 25998 states and 34645 transitions. [2019-09-08 07:34:09,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 07:34:09,121 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2019-09-08 07:34:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:09,212 INFO L225 Difference]: With dead ends: 25998 [2019-09-08 07:34:09,212 INFO L226 Difference]: Without dead ends: 19801 [2019-09-08 07:34:09,242 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2019-09-08 07:34:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19801 states. [2019-09-08 07:34:10,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19801 to 19735. [2019-09-08 07:34:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19735 states. [2019-09-08 07:34:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19735 states to 19735 states and 24391 transitions. [2019-09-08 07:34:10,797 INFO L78 Accepts]: Start accepts. Automaton has 19735 states and 24391 transitions. Word has length 105 [2019-09-08 07:34:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:10,797 INFO L475 AbstractCegarLoop]: Abstraction has 19735 states and 24391 transitions. [2019-09-08 07:34:10,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 07:34:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 19735 states and 24391 transitions. [2019-09-08 07:34:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-08 07:34:10,803 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:10,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:10,804 INFO L418 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:10,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:10,804 INFO L82 PathProgramCache]: Analyzing trace with hash 974118638, now seen corresponding path program 1 times [2019-09-08 07:34:10,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:10,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:10,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:10,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:10,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 07:34:11,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:11,039 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:34:11,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:11,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:34:11,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 07:34:11,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:34:11,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 6] total 20 [2019-09-08 07:34:11,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 07:34:11,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 07:34:11,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-09-08 07:34:11,363 INFO L87 Difference]: Start difference. First operand 19735 states and 24391 transitions. Second operand 20 states. [2019-09-08 07:34:21,295 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-09-08 07:34:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:22,517 INFO L93 Difference]: Finished difference Result 90529 states and 112412 transitions. [2019-09-08 07:34:22,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-09-08 07:34:22,517 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-09-08 07:34:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:22,865 INFO L225 Difference]: With dead ends: 90529 [2019-09-08 07:34:22,866 INFO L226 Difference]: Without dead ends: 71053 [2019-09-08 07:34:22,983 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4156 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1854, Invalid=10136, Unknown=0, NotChecked=0, Total=11990 [2019-09-08 07:34:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71053 states. [2019-09-08 07:34:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71053 to 66627. [2019-09-08 07:34:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66627 states. [2019-09-08 07:34:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66627 states to 66627 states and 81713 transitions. [2019-09-08 07:34:28,937 INFO L78 Accepts]: Start accepts. Automaton has 66627 states and 81713 transitions. Word has length 106 [2019-09-08 07:34:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:28,937 INFO L475 AbstractCegarLoop]: Abstraction has 66627 states and 81713 transitions. [2019-09-08 07:34:28,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 07:34:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 66627 states and 81713 transitions. [2019-09-08 07:34:28,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-08 07:34:28,946 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:28,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:28,946 INFO L418 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:28,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1907187721, now seen corresponding path program 1 times [2019-09-08 07:34:28,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:28,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:28,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:28,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:28,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 07:34:29,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:29,099 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 07:34:29,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:29,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:34:29,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 07:34:29,478 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:34:29,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2019-09-08 07:34:29,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 07:34:29,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 07:34:29,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-08 07:34:29,481 INFO L87 Difference]: Start difference. First operand 66627 states and 81713 transitions. Second operand 18 states. [2019-09-08 07:34:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:35,602 INFO L93 Difference]: Finished difference Result 131070 states and 162761 transitions. [2019-09-08 07:34:35,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 07:34:35,603 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 107 [2019-09-08 07:34:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:36,000 INFO L225 Difference]: With dead ends: 131070 [2019-09-08 07:34:36,001 INFO L226 Difference]: Without dead ends: 94350 [2019-09-08 07:34:36,099 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=246, Invalid=810, Unknown=0, NotChecked=0, Total=1056 [2019-09-08 07:34:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94350 states. [2019-09-08 07:34:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94350 to 90496. [2019-09-08 07:34:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90496 states. [2019-09-08 07:34:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90496 states to 90496 states and 111165 transitions. [2019-09-08 07:34:42,585 INFO L78 Accepts]: Start accepts. Automaton has 90496 states and 111165 transitions. Word has length 107 [2019-09-08 07:34:42,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:34:42,585 INFO L475 AbstractCegarLoop]: Abstraction has 90496 states and 111165 transitions. [2019-09-08 07:34:42,585 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 07:34:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 90496 states and 111165 transitions. [2019-09-08 07:34:42,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-08 07:34:42,595 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:34:42,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:42,595 INFO L418 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:34:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:34:42,596 INFO L82 PathProgramCache]: Analyzing trace with hash -884037855, now seen corresponding path program 1 times [2019-09-08 07:34:42,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:34:42,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:34:42,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:42,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:34:42,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:34:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-08 07:34:42,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:34:42,737 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) [2019-09-08 07:34:42,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:34:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:34:42,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:34:42,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:34:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 07:34:42,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:34:42,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 14 [2019-09-08 07:34:42,962 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 07:34:42,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 07:34:42,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2019-09-08 07:34:42,963 INFO L87 Difference]: Start difference. First operand 90496 states and 111165 transitions. Second operand 14 states. [2019-09-08 07:34:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:34:52,842 INFO L93 Difference]: Finished difference Result 179877 states and 230081 transitions. [2019-09-08 07:34:52,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-08 07:34:52,842 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2019-09-08 07:34:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:34:53,340 INFO L225 Difference]: With dead ends: 179877 [2019-09-08 07:34:53,340 INFO L226 Difference]: Without dead ends: 132960 [2019-09-08 07:34:53,450 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 07:34:53,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132960 states. [2019-09-08 07:35:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132960 to 125920. [2019-09-08 07:35:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125920 states. [2019-09-08 07:35:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125920 states to 125920 states and 155097 transitions. [2019-09-08 07:35:03,408 INFO L78 Accepts]: Start accepts. Automaton has 125920 states and 155097 transitions. Word has length 108 [2019-09-08 07:35:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:35:03,408 INFO L475 AbstractCegarLoop]: Abstraction has 125920 states and 155097 transitions. [2019-09-08 07:35:03,408 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 07:35:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 125920 states and 155097 transitions. [2019-09-08 07:35:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-08 07:35:03,417 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:35:03,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:03,418 INFO L418 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:35:03,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:35:03,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1150938910, now seen corresponding path program 1 times [2019-09-08 07:35:03,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:35:03,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:35:03,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:03,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:35:03,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:35:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 07:35:03,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:35:03,553 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 07:35:03,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:35:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:35:03,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 07:35:03,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:35:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (9)] Exception during sending of exit command (exit): Stream closed [2019-09-08 07:35:03,848 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:35:03,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2019-09-08 07:35:03,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 07:35:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 07:35:03,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-08 07:35:03,849 INFO L87 Difference]: Start difference. First operand 125920 states and 155097 transitions. Second operand 18 states. [2019-09-08 07:35:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:35:11,198 INFO L93 Difference]: Finished difference Result 253623 states and 310970 transitions. [2019-09-08 07:35:11,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 07:35:11,199 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2019-09-08 07:35:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:35:11,671 INFO L225 Difference]: With dead ends: 253623 [2019-09-08 07:35:11,672 INFO L226 Difference]: Without dead ends: 140358 [2019-09-08 07:35:11,823 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 110 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 07:35:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140358 states. [2019-09-08 07:35:21,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140358 to 132844. [2019-09-08 07:35:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132844 states. [2019-09-08 07:35:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132844 states to 132844 states and 161650 transitions. [2019-09-08 07:35:22,216 INFO L78 Accepts]: Start accepts. Automaton has 132844 states and 161650 transitions. Word has length 108 [2019-09-08 07:35:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:35:22,216 INFO L475 AbstractCegarLoop]: Abstraction has 132844 states and 161650 transitions. [2019-09-08 07:35:22,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 07:35:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 132844 states and 161650 transitions. [2019-09-08 07:35:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 07:35:22,223 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:35:22,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:22,223 INFO L418 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:35:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:35:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1975593636, now seen corresponding path program 1 times [2019-09-08 07:35:22,224 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:35:22,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:35:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:22,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:35:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:35:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 07:35:22,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:35:22,375 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 07:35:22,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:35:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:35:22,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:35:22,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:35:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 07:35:22,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:35:22,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2019-09-08 07:35:22,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 07:35:22,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 07:35:22,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2019-09-08 07:35:22,638 INFO L87 Difference]: Start difference. First operand 132844 states and 161650 transitions. Second operand 17 states. [2019-09-08 07:35:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:35:33,756 INFO L93 Difference]: Finished difference Result 238222 states and 292379 transitions. [2019-09-08 07:35:33,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-08 07:35:33,757 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 109 [2019-09-08 07:35:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:35:34,377 INFO L225 Difference]: With dead ends: 238222 [2019-09-08 07:35:34,377 INFO L226 Difference]: Without dead ends: 190500 [2019-09-08 07:35:34,478 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=322, Invalid=1238, Unknown=0, NotChecked=0, Total=1560 [2019-09-08 07:35:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190500 states. [2019-09-08 07:35:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190500 to 188296. [2019-09-08 07:35:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188296 states. [2019-09-08 07:35:49,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188296 states to 188296 states and 229695 transitions. [2019-09-08 07:35:49,096 INFO L78 Accepts]: Start accepts. Automaton has 188296 states and 229695 transitions. Word has length 109 [2019-09-08 07:35:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:35:49,096 INFO L475 AbstractCegarLoop]: Abstraction has 188296 states and 229695 transitions. [2019-09-08 07:35:49,097 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 07:35:49,097 INFO L276 IsEmpty]: Start isEmpty. Operand 188296 states and 229695 transitions. [2019-09-08 07:35:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-08 07:35:49,103 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:35:49,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:49,104 INFO L418 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:35:49,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:35:49,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1716824062, now seen corresponding path program 1 times [2019-09-08 07:35:49,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:35:49,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:35:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:49,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:35:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:35:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:35:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 07:35:49,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:35:49,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:35:49,249 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:35:49,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:35:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:35:49,250 INFO L87 Difference]: Start difference. First operand 188296 states and 229695 transitions. Second operand 9 states. [2019-09-08 07:36:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:36:07,318 INFO L93 Difference]: Finished difference Result 359553 states and 444906 transitions. [2019-09-08 07:36:07,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-09-08 07:36:07,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2019-09-08 07:36:07,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:36:07,972 INFO L225 Difference]: With dead ends: 359553 [2019-09-08 07:36:07,972 INFO L226 Difference]: Without dead ends: 249904 [2019-09-08 07:36:08,108 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=829, Unknown=0, NotChecked=0, Total=1056 [2019-09-08 07:36:08,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249904 states. [2019-09-08 07:36:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249904 to 248520. [2019-09-08 07:36:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248520 states. [2019-09-08 07:36:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248520 states to 248520 states and 303087 transitions. [2019-09-08 07:36:26,185 INFO L78 Accepts]: Start accepts. Automaton has 248520 states and 303087 transitions. Word has length 109 [2019-09-08 07:36:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:36:26,185 INFO L475 AbstractCegarLoop]: Abstraction has 248520 states and 303087 transitions. [2019-09-08 07:36:26,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:36:26,185 INFO L276 IsEmpty]: Start isEmpty. Operand 248520 states and 303087 transitions. [2019-09-08 07:36:26,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-08 07:36:26,192 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:36:26,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:26,193 INFO L418 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:36:26,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:36:26,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1649328623, now seen corresponding path program 1 times [2019-09-08 07:36:26,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:36:26,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:36:26,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:36:26,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:36:26,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:36:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:36:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 07:36:26,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:36:26,375 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:36:26,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:36:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:36:27,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 07:36:27,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:36:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:36:27,247 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:36:27,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2019-09-08 07:36:27,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 07:36:27,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 07:36:27,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-09-08 07:36:27,248 INFO L87 Difference]: Start difference. First operand 248520 states and 303087 transitions. Second operand 21 states. [2019-09-08 07:37:42,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:37:42,083 INFO L93 Difference]: Finished difference Result 1410057 states and 1732228 transitions. [2019-09-08 07:37:42,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-09-08 07:37:42,084 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 113 [2019-09-08 07:37:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:37:45,379 INFO L225 Difference]: With dead ends: 1410057 [2019-09-08 07:37:45,380 INFO L226 Difference]: Without dead ends: 1163152 [2019-09-08 07:37:45,873 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1381, Invalid=5425, Unknown=0, NotChecked=0, Total=6806 [2019-09-08 07:37:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163152 states. [2019-09-08 07:39:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163152 to 1106787. [2019-09-08 07:39:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106787 states. [2019-09-08 07:39:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106787 states to 1106787 states and 1351871 transitions. [2019-09-08 07:39:46,709 INFO L78 Accepts]: Start accepts. Automaton has 1106787 states and 1351871 transitions. Word has length 113 [2019-09-08 07:39:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:39:46,710 INFO L475 AbstractCegarLoop]: Abstraction has 1106787 states and 1351871 transitions. [2019-09-08 07:39:46,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 07:39:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1106787 states and 1351871 transitions. [2019-09-08 07:39:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-08 07:39:46,725 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:39:46,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:46,726 INFO L418 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:39:46,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:39:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1409088877, now seen corresponding path program 1 times [2019-09-08 07:39:46,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:39:46,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:39:46,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:39:46,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:39:46,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:39:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:39:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 07:39:47,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:39:47,047 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:39:47,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:39:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:39:47,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 75 conjunts are in the unsatisfiable core [2019-09-08 07:39:47,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:39:48,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:39:49,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:39:50,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:39:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:39:50,229 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:39:50,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 35] total 54 [2019-09-08 07:39:50,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 54 states [2019-09-08 07:39:50,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2019-09-08 07:39:50,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2567, Unknown=0, NotChecked=0, Total=2862 [2019-09-08 07:39:50,232 INFO L87 Difference]: Start difference. First operand 1106787 states and 1351871 transitions. Second operand 54 states. [2019-09-08 07:40:03,343 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-08 07:40:03,732 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-08 07:40:04,664 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2019-09-08 07:40:04,898 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-08 07:40:05,045 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-08 07:40:05,247 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 07:40:05,463 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-09-08 07:40:05,740 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 07:40:05,882 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 07:40:06,059 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-08 07:40:06,257 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 07:40:07,125 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 07:40:07,584 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-08 07:40:08,068 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-08 07:40:08,231 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-08 07:40:08,379 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-08 07:40:08,935 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2019-09-08 07:40:09,279 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2019-09-08 07:40:09,434 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2019-09-08 07:40:09,890 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-08 07:40:10,415 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 07:40:10,625 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 07:40:10,990 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2019-09-08 07:40:11,397 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-08 07:40:13,542 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-08 07:40:14,081 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2019-09-08 07:40:14,388 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-08 07:40:15,022 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-08 07:40:17,954 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-08 07:40:18,773 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-08 07:40:18,985 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 07:40:19,355 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-09-08 07:40:19,950 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 07:40:20,461 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2019-09-08 07:40:20,774 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-08 07:40:20,986 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-08 07:40:21,282 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-08 07:40:21,539 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2019-09-08 07:40:22,042 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-08 07:40:22,408 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-08 07:40:23,109 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-08 07:40:23,396 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-08 07:40:23,856 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-08 07:40:24,769 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-08 07:40:25,332 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-08 07:40:25,552 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-08 07:40:26,269 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-08 07:40:26,684 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-08 07:40:27,062 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:40:27,505 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-08 07:40:28,624 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 07:40:28,972 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-08 07:40:30,888 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 07:40:32,639 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-08 07:40:33,059 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2019-09-08 07:40:34,422 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 07:40:34,800 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-09-08 07:40:35,115 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:40:35,487 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-08 07:40:36,367 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-08 07:40:36,619 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:40:36,941 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-08 07:40:37,320 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:40:37,623 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-08 07:40:38,309 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 07:40:38,558 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-08 07:40:42,130 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 07:40:42,351 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-09-08 07:40:42,875 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 07:40:44,686 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 07:40:45,365 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-08 07:40:46,519 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2019-09-08 07:40:46,687 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 07:40:47,319 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-08 07:40:47,598 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2019-09-08 07:40:50,733 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-08 07:40:51,937 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 07:40:53,146 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2019-09-08 07:40:53,641 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-08 07:40:54,082 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2019-09-08 07:40:54,264 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-09-08 07:40:55,156 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-08 07:40:55,886 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2019-09-08 07:40:56,674 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-08 07:40:56,870 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2019-09-08 07:41:01,593 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-08 07:41:01,771 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 07:41:02,869 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44