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.7.1.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 08:02:10,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 08:02:10,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 08:02:10,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 08:02:10,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 08:02:10,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 08:02:10,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 08:02:10,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 08:02:10,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 08:02:10,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 08:02:10,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 08:02:10,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 08:02:10,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 08:02:10,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 08:02:10,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 08:02:10,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 08:02:10,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 08:02:10,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 08:02:10,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 08:02:10,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 08:02:10,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 08:02:10,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 08:02:10,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 08:02:10,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 08:02:10,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 08:02:10,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 08:02:10,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 08:02:10,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 08:02:10,355 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 08:02:10,370 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 08:02:10,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 08:02:10,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 08:02:10,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 08:02:10,371 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 08:02:10,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 08:02:10,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 08:02:10,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 08:02:10,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 08:02:10,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 08:02:10,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 08:02:10,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 08:02:10,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 08:02:10,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 08:02:10,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 08:02:10,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 08:02:10,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 08:02:10,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 08:02:10,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 08:02:10,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 08:02:10,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 08:02:10,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 08:02:10,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 08:02:10,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 08:02:10,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 08:02:10,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 08:02:10,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 08:02:10,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 08:02:10,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 08:02:10,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 08:02:10,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 08:02:10,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 08:02:10,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 08:02:10,428 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 08:02:10,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2019-09-08 08:02:10,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ba03f21/1c2600ded4584284bffce0b1e19e934a/FLAGcbc7eb710 [2019-09-08 08:02:10,954 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 08:02:10,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2019-09-08 08:02:10,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ba03f21/1c2600ded4584284bffce0b1e19e934a/FLAGcbc7eb710 [2019-09-08 08:02:11,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49ba03f21/1c2600ded4584284bffce0b1e19e934a [2019-09-08 08:02:11,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 08:02:11,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 08:02:11,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 08:02:11,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 08:02:11,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 08:02:11,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ab9795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11, skipping insertion in model container [2019-09-08 08:02:11,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,307 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 08:02:11,358 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 08:02:11,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 08:02:11,727 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 08:02:11,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 08:02:11,837 INFO L192 MainTranslator]: Completed translation [2019-09-08 08:02:11,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11 WrapperNode [2019-09-08 08:02:11,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 08:02:11,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 08:02:11,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 08:02:11,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 08:02:11,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (1/1) ... [2019-09-08 08:02:11,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 08:02:11,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 08:02:11,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 08:02:11,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 08:02:11,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (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 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-08 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-08 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-08 08:02:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2019-09-08 08:02:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2019-09-08 08:02:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2019-09-08 08:02:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2019-09-08 08:02:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-08 08:02:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-08 08:02:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 08:02:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 08:02:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 08:02:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 08:02:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 08:02:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2019-09-08 08:02:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 08:02:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 08:02:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 08:02:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 08:02:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 08:02:12,761 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 08:02:12,761 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 08:02:12,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:02:12 BoogieIcfgContainer [2019-09-08 08:02:12,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 08:02:12,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 08:02:12,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 08:02:12,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 08:02:12,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:02:11" (1/3) ... [2019-09-08 08:02:12,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b96545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:02:12, skipping insertion in model container [2019-09-08 08:02:12,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:02:11" (2/3) ... [2019-09-08 08:02:12,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b96545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:02:12, skipping insertion in model container [2019-09-08 08:02:12,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:02:12" (3/3) ... [2019-09-08 08:02:12,771 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2019-09-08 08:02:12,780 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 08:02:12,788 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 08:02:12,804 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 08:02:12,831 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 08:02:12,832 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 08:02:12,832 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 08:02:12,832 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 08:02:12,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 08:02:12,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 08:02:12,832 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 08:02:12,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 08:02:12,833 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 08:02:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-08 08:02:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-08 08:02:12,865 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:12,866 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:02:12,869 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:12,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1658309622, now seen corresponding path program 1 times [2019-09-08 08:02:12,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:12,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:12,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:12,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:12,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:13,347 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 08:02:13,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:13,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:13,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:13,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:13,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:13,402 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 5 states. [2019-09-08 08:02:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:13,588 INFO L93 Difference]: Finished difference Result 272 states and 407 transitions. [2019-09-08 08:02:13,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 08:02:13,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2019-09-08 08:02:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:13,603 INFO L225 Difference]: With dead ends: 272 [2019-09-08 08:02:13,603 INFO L226 Difference]: Without dead ends: 160 [2019-09-08 08:02:13,608 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 08:02:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-08 08:02:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-09-08 08:02:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-08 08:02:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 200 transitions. [2019-09-08 08:02:13,662 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 200 transitions. Word has length 75 [2019-09-08 08:02:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:13,663 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 200 transitions. [2019-09-08 08:02:13,663 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 200 transitions. [2019-09-08 08:02:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-09-08 08:02:13,669 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:13,669 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:13,669 INFO L418 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:13,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:13,670 INFO L82 PathProgramCache]: Analyzing trace with hash -456402126, now seen corresponding path program 1 times [2019-09-08 08:02:13,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:13,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:13,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:13,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:13,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:14,223 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 08:02:14,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:14,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-08 08:02:14,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 08:02:14,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 08:02:14,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2019-09-08 08:02:14,227 INFO L87 Difference]: Start difference. First operand 160 states and 200 transitions. Second operand 17 states. [2019-09-08 08:02:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:27,129 INFO L93 Difference]: Finished difference Result 2171 states and 3403 transitions. [2019-09-08 08:02:27,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2019-09-08 08:02:27,130 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 124 [2019-09-08 08:02:27,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:27,168 INFO L225 Difference]: With dead ends: 2171 [2019-09-08 08:02:27,168 INFO L226 Difference]: Without dead ends: 2073 [2019-09-08 08:02:27,177 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1998, Invalid=7122, Unknown=0, NotChecked=0, Total=9120 [2019-09-08 08:02:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2019-09-08 08:02:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1059. [2019-09-08 08:02:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2019-09-08 08:02:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1507 transitions. [2019-09-08 08:02:27,397 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1507 transitions. Word has length 124 [2019-09-08 08:02:27,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:27,401 INFO L475 AbstractCegarLoop]: Abstraction has 1059 states and 1507 transitions. [2019-09-08 08:02:27,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 08:02:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1507 transitions. [2019-09-08 08:02:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:27,420 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:27,420 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:27,420 INFO L418 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:27,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1039057762, now seen corresponding path program 1 times [2019-09-08 08:02:27,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:27,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:27,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:27,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:27,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:27,603 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 08:02:27,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:27,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:27,604 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:27,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:27,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:27,605 INFO L87 Difference]: Start difference. First operand 1059 states and 1507 transitions. Second operand 5 states. [2019-09-08 08:02:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:28,348 INFO L93 Difference]: Finished difference Result 3864 states and 5589 transitions. [2019-09-08 08:02:28,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:28,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:28,381 INFO L225 Difference]: With dead ends: 3864 [2019-09-08 08:02:28,381 INFO L226 Difference]: Without dead ends: 2867 [2019-09-08 08:02:28,389 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 08:02:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2019-09-08 08:02:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2863. [2019-09-08 08:02:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2863 states. [2019-09-08 08:02:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 4081 transitions. [2019-09-08 08:02:28,579 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 4081 transitions. Word has length 126 [2019-09-08 08:02:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:28,579 INFO L475 AbstractCegarLoop]: Abstraction has 2863 states and 4081 transitions. [2019-09-08 08:02:28,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 4081 transitions. [2019-09-08 08:02:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:28,584 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:28,585 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:28,585 INFO L418 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:28,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:28,586 INFO L82 PathProgramCache]: Analyzing trace with hash -248644694, now seen corresponding path program 1 times [2019-09-08 08:02:28,586 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:28,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:28,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:28,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:28,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:28,850 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 08:02:28,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:28,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:28,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:28,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:28,852 INFO L87 Difference]: Start difference. First operand 2863 states and 4081 transitions. Second operand 5 states. [2019-09-08 08:02:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:29,688 INFO L93 Difference]: Finished difference Result 8264 states and 11869 transitions. [2019-09-08 08:02:29,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:29,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:29,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:29,731 INFO L225 Difference]: With dead ends: 8264 [2019-09-08 08:02:29,732 INFO L226 Difference]: Without dead ends: 5463 [2019-09-08 08:02:29,743 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 08:02:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2019-09-08 08:02:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 5461. [2019-09-08 08:02:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5461 states. [2019-09-08 08:02:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 7770 transitions. [2019-09-08 08:02:30,085 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 7770 transitions. Word has length 126 [2019-09-08 08:02:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:30,086 INFO L475 AbstractCegarLoop]: Abstraction has 5461 states and 7770 transitions. [2019-09-08 08:02:30,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 7770 transitions. [2019-09-08 08:02:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:30,093 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:30,093 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:30,093 INFO L418 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:30,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:30,094 INFO L82 PathProgramCache]: Analyzing trace with hash 947100576, now seen corresponding path program 1 times [2019-09-08 08:02:30,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:30,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:30,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:30,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:30,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:30,277 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 08:02:30,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:30,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:30,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:30,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:30,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:30,279 INFO L87 Difference]: Start difference. First operand 5461 states and 7770 transitions. Second operand 5 states. [2019-09-08 08:02:31,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:31,448 INFO L93 Difference]: Finished difference Result 15893 states and 22710 transitions. [2019-09-08 08:02:31,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:31,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:31,507 INFO L225 Difference]: With dead ends: 15893 [2019-09-08 08:02:31,508 INFO L226 Difference]: Without dead ends: 10494 [2019-09-08 08:02:31,528 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 08:02:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10494 states. [2019-09-08 08:02:32,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10494 to 10492. [2019-09-08 08:02:32,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10492 states. [2019-09-08 08:02:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10492 states to 10492 states and 14831 transitions. [2019-09-08 08:02:32,354 INFO L78 Accepts]: Start accepts. Automaton has 10492 states and 14831 transitions. Word has length 126 [2019-09-08 08:02:32,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:32,354 INFO L475 AbstractCegarLoop]: Abstraction has 10492 states and 14831 transitions. [2019-09-08 08:02:32,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:32,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10492 states and 14831 transitions. [2019-09-08 08:02:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:32,358 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:32,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:32,359 INFO L418 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:32,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1143879702, now seen corresponding path program 1 times [2019-09-08 08:02:32,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:32,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:32,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:32,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:32,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:32,559 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 08:02:32,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:32,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:32,560 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:32,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:32,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:32,561 INFO L87 Difference]: Start difference. First operand 10492 states and 14831 transitions. Second operand 5 states. [2019-09-08 08:02:33,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:33,916 INFO L93 Difference]: Finished difference Result 30584 states and 43393 transitions. [2019-09-08 08:02:33,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:33,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:34,029 INFO L225 Difference]: With dead ends: 30584 [2019-09-08 08:02:34,030 INFO L226 Difference]: Without dead ends: 20154 [2019-09-08 08:02:34,058 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 08:02:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20154 states. [2019-09-08 08:02:35,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20154 to 20152. [2019-09-08 08:02:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20152 states. [2019-09-08 08:02:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20152 states to 20152 states and 28295 transitions. [2019-09-08 08:02:35,825 INFO L78 Accepts]: Start accepts. Automaton has 20152 states and 28295 transitions. Word has length 126 [2019-09-08 08:02:35,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:35,827 INFO L475 AbstractCegarLoop]: Abstraction has 20152 states and 28295 transitions. [2019-09-08 08:02:35,834 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20152 states and 28295 transitions. [2019-09-08 08:02:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:35,838 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:35,838 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:35,838 INFO L418 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:35,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1799912160, now seen corresponding path program 1 times [2019-09-08 08:02:35,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:35,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:35,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:35,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:35,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:35,967 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 08:02:35,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:35,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:35,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:35,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:35,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:35,969 INFO L87 Difference]: Start difference. First operand 20152 states and 28295 transitions. Second operand 5 states. [2019-09-08 08:02:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:37,535 INFO L93 Difference]: Finished difference Result 58868 states and 82857 transitions. [2019-09-08 08:02:37,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:37,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:37,691 INFO L225 Difference]: With dead ends: 58868 [2019-09-08 08:02:37,691 INFO L226 Difference]: Without dead ends: 38778 [2019-09-08 08:02:37,754 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 08:02:37,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38778 states. [2019-09-08 08:02:39,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38778 to 38776. [2019-09-08 08:02:39,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38776 states. [2019-09-08 08:02:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38776 states to 38776 states and 53991 transitions. [2019-09-08 08:02:39,842 INFO L78 Accepts]: Start accepts. Automaton has 38776 states and 53991 transitions. Word has length 126 [2019-09-08 08:02:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:39,843 INFO L475 AbstractCegarLoop]: Abstraction has 38776 states and 53991 transitions. [2019-09-08 08:02:39,843 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 38776 states and 53991 transitions. [2019-09-08 08:02:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:39,845 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:39,845 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:39,846 INFO L418 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:39,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:39,846 INFO L82 PathProgramCache]: Analyzing trace with hash 613257386, now seen corresponding path program 1 times [2019-09-08 08:02:39,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:39,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:39,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:39,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:39,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:39,976 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 08:02:39,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:39,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:39,978 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:39,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:39,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:39,979 INFO L87 Difference]: Start difference. First operand 38776 states and 53991 transitions. Second operand 5 states. [2019-09-08 08:02:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:43,113 INFO L93 Difference]: Finished difference Result 113132 states and 157945 transitions. [2019-09-08 08:02:43,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:43,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:43,422 INFO L225 Difference]: With dead ends: 113132 [2019-09-08 08:02:43,422 INFO L226 Difference]: Without dead ends: 74418 [2019-09-08 08:02:43,505 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 08:02:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74418 states. [2019-09-08 08:02:46,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74418 to 74416. [2019-09-08 08:02:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74416 states. [2019-09-08 08:02:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74416 states to 74416 states and 102751 transitions. [2019-09-08 08:02:46,992 INFO L78 Accepts]: Start accepts. Automaton has 74416 states and 102751 transitions. Word has length 126 [2019-09-08 08:02:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:46,992 INFO L475 AbstractCegarLoop]: Abstraction has 74416 states and 102751 transitions. [2019-09-08 08:02:46,992 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:02:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 74416 states and 102751 transitions. [2019-09-08 08:02:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:02:46,994 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:46,994 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:46,995 INFO L418 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:46,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1860766240, now seen corresponding path program 1 times [2019-09-08 08:02:46,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:46,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:46,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:46,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:46,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:02:47,129 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 08:02:47,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:02:47,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 08:02:47,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 08:02:47,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 08:02:47,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 08:02:47,131 INFO L87 Difference]: Start difference. First operand 74416 states and 102751 transitions. Second operand 5 states. [2019-09-08 08:02:52,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:02:52,886 INFO L93 Difference]: Finished difference Result 216692 states and 300129 transitions. [2019-09-08 08:02:52,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 08:02:52,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2019-09-08 08:02:52,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:02:53,401 INFO L225 Difference]: With dead ends: 216692 [2019-09-08 08:02:53,401 INFO L226 Difference]: Without dead ends: 142338 [2019-09-08 08:02:53,541 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 08:02:53,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142338 states. [2019-09-08 08:03:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142338 to 142336. [2019-09-08 08:03:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142336 states. [2019-09-08 08:03:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142336 states to 142336 states and 194911 transitions. [2019-09-08 08:03:05,523 INFO L78 Accepts]: Start accepts. Automaton has 142336 states and 194911 transitions. Word has length 126 [2019-09-08 08:03:05,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:03:05,524 INFO L475 AbstractCegarLoop]: Abstraction has 142336 states and 194911 transitions. [2019-09-08 08:03:05,524 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 08:03:05,524 INFO L276 IsEmpty]: Start isEmpty. Operand 142336 states and 194911 transitions. [2019-09-08 08:03:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:03:05,525 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:03:05,525 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:05,526 INFO L418 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:03:05,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:03:05,526 INFO L82 PathProgramCache]: Analyzing trace with hash 222538090, now seen corresponding path program 1 times [2019-09-08 08:03:05,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:03:05,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:03:05,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:03:05,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:03:05,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:03:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:03:05,928 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 08:03:05,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:03:05,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-08 08:03:05,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 08:03:05,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 08:03:05,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2019-09-08 08:03:05,931 INFO L87 Difference]: Start difference. First operand 142336 states and 194911 transitions. Second operand 17 states. [2019-09-08 08:03:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:03:37,148 INFO L93 Difference]: Finished difference Result 468862 states and 707950 transitions. [2019-09-08 08:03:37,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2019-09-08 08:03:37,148 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 126 [2019-09-08 08:03:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:03:38,833 INFO L225 Difference]: With dead ends: 468862 [2019-09-08 08:03:38,833 INFO L226 Difference]: Without dead ends: 326588 [2019-09-08 08:03:39,139 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3713 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2040, Invalid=7080, Unknown=0, NotChecked=0, Total=9120 [2019-09-08 08:03:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326588 states. [2019-09-08 08:03:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326588 to 194752. [2019-09-08 08:03:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194752 states. [2019-09-08 08:03:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194752 states to 194752 states and 267039 transitions. [2019-09-08 08:03:57,327 INFO L78 Accepts]: Start accepts. Automaton has 194752 states and 267039 transitions. Word has length 126 [2019-09-08 08:03:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:03:57,328 INFO L475 AbstractCegarLoop]: Abstraction has 194752 states and 267039 transitions. [2019-09-08 08:03:57,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 08:03:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 194752 states and 267039 transitions. [2019-09-08 08:03:57,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-08 08:03:57,329 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:03:57,330 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:57,330 INFO L418 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:03:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:03:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash 463021734, now seen corresponding path program 1 times [2019-09-08 08:03:57,330 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:03:57,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:03:57,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:03:57,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:03:57,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:03:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:03:57,457 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 08:03:57,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:03:57,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 08:03:57,458 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 08:03:57,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 08:03:57,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 08:03:57,458 INFO L87 Difference]: Start difference. First operand 194752 states and 267039 transitions. Second operand 9 states. [2019-09-08 08:04:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:04:12,559 INFO L93 Difference]: Finished difference Result 377157 states and 519262 transitions. [2019-09-08 08:04:12,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 08:04:12,559 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 126 [2019-09-08 08:04:12,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:04:13,254 INFO L225 Difference]: With dead ends: 377157 [2019-09-08 08:04:13,254 INFO L226 Difference]: Without dead ends: 240003 [2019-09-08 08:04:13,448 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 08:04:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240003 states. [2019-09-08 08:04:25,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240003 to 219845. [2019-09-08 08:04:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219845 states. [2019-09-08 08:04:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219845 states to 219845 states and 302543 transitions. [2019-09-08 08:04:25,597 INFO L78 Accepts]: Start accepts. Automaton has 219845 states and 302543 transitions. Word has length 126 [2019-09-08 08:04:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:04:25,598 INFO L475 AbstractCegarLoop]: Abstraction has 219845 states and 302543 transitions. [2019-09-08 08:04:25,598 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 08:04:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 219845 states and 302543 transitions. [2019-09-08 08:04:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-09-08 08:04:25,599 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:04:25,600 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:25,600 INFO L418 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:04:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:04:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1528434433, now seen corresponding path program 1 times [2019-09-08 08:04:25,601 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:04:25,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:04:25,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:04:25,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:04:25,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:04:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:04:25,763 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 08:04:25,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:04:25,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 08:04:25,764 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 08:04:25,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 08:04:25,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 08:04:25,765 INFO L87 Difference]: Start difference. First operand 219845 states and 302543 transitions. Second operand 11 states. [2019-09-08 08:04:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:04:39,185 INFO L93 Difference]: Finished difference Result 255402 states and 371156 transitions. [2019-09-08 08:04:39,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 08:04:39,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 127 [2019-09-08 08:04:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:04:40,446 INFO L225 Difference]: With dead ends: 255402 [2019-09-08 08:04:40,447 INFO L226 Difference]: Without dead ends: 255400 [2019-09-08 08:04:40,536 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 08:04:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255400 states. [2019-09-08 08:04:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255400 to 232517. [2019-09-08 08:04:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232517 states. [2019-09-08 08:04:58,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232517 states to 232517 states and 315535 transitions. [2019-09-08 08:04:58,785 INFO L78 Accepts]: Start accepts. Automaton has 232517 states and 315535 transitions. Word has length 127 [2019-09-08 08:04:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:04:58,786 INFO L475 AbstractCegarLoop]: Abstraction has 232517 states and 315535 transitions. [2019-09-08 08:04:58,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 08:04:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 232517 states and 315535 transitions. [2019-09-08 08:04:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-09-08 08:04:58,787 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:04:58,787 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:58,788 INFO L418 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:04:58,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:04:58,788 INFO L82 PathProgramCache]: Analyzing trace with hash 346953462, now seen corresponding path program 1 times [2019-09-08 08:04:58,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:04:58,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:04:58,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:04:58,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:04:58,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:04:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:04:58,940 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 08:04:58,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 08:04:58,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 08:04:58,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 08:04:58,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 08:04:58,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 08:04:58,942 INFO L87 Difference]: Start difference. First operand 232517 states and 315535 transitions. Second operand 7 states. [2019-09-08 08:05:18,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:05:18,538 INFO L93 Difference]: Finished difference Result 500019 states and 682266 transitions. [2019-09-08 08:05:18,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 08:05:18,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2019-09-08 08:05:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:05:19,432 INFO L225 Difference]: With dead ends: 500019 [2019-09-08 08:05:19,432 INFO L226 Difference]: Without dead ends: 328606 [2019-09-08 08:05:19,649 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-08 08:05:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328606 states. [2019-09-08 08:05:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328606 to 303557. [2019-09-08 08:05:40,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303557 states. [2019-09-08 08:05:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303557 states to 303557 states and 410221 transitions. [2019-09-08 08:05:41,045 INFO L78 Accepts]: Start accepts. Automaton has 303557 states and 410221 transitions. Word has length 127 [2019-09-08 08:05:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:05:41,045 INFO L475 AbstractCegarLoop]: Abstraction has 303557 states and 410221 transitions. [2019-09-08 08:05:41,046 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 08:05:41,046 INFO L276 IsEmpty]: Start isEmpty. Operand 303557 states and 410221 transitions. [2019-09-08 08:05:41,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-08 08:05:41,157 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:05:41,158 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:41,158 INFO L418 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:05:41,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:05:41,159 INFO L82 PathProgramCache]: Analyzing trace with hash -598279232, now seen corresponding path program 1 times [2019-09-08 08:05:41,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:05:41,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:05:41,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:05:41,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:05:41,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:05:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:05:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-08 08:05:41,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:05:41,270 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:05:41,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:05:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:05:41,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 08:05:41,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:05:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-08 08:05:41,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:05:41,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2019-09-08 08:05:41,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 08:05:41,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 08:05:41,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-09-08 08:05:41,984 INFO L87 Difference]: Start difference. First operand 303557 states and 410221 transitions. Second operand 18 states. [2019-09-08 08:06:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:06:09,748 INFO L93 Difference]: Finished difference Result 577417 states and 778093 transitions. [2019-09-08 08:06:09,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-09-08 08:06:09,748 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 193 [2019-09-08 08:06:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:06:10,734 INFO L225 Difference]: With dead ends: 577417 [2019-09-08 08:06:10,734 INFO L226 Difference]: Without dead ends: 273966 [2019-09-08 08:06:11,110 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=589, Invalid=1763, Unknown=0, NotChecked=0, Total=2352 [2019-09-08 08:06:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273966 states. [2019-09-08 08:06:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273966 to 249244. [2019-09-08 08:06:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249244 states. [2019-09-08 08:06:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249244 states to 249244 states and 331196 transitions. [2019-09-08 08:06:34,645 INFO L78 Accepts]: Start accepts. Automaton has 249244 states and 331196 transitions. Word has length 193 [2019-09-08 08:06:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:06:34,646 INFO L475 AbstractCegarLoop]: Abstraction has 249244 states and 331196 transitions. [2019-09-08 08:06:34,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 08:06:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 249244 states and 331196 transitions. [2019-09-08 08:06:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-08 08:06:34,787 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:06:34,788 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:34,788 INFO L418 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:06:34,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:06:34,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1748263958, now seen corresponding path program 1 times [2019-09-08 08:06:34,789 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:06:34,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:06:34,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:06:34,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:06:34,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:06:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:06:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 08:06:35,421 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:06:35,421 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) [2019-09-08 08:06:35,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:06:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:06:35,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 08:06:35,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:06:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 08:06:36,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:06:36,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [21] total 40 [2019-09-08 08:06:36,509 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-08 08:06:36,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-08 08:06:36,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1374, Unknown=0, NotChecked=0, Total=1560 [2019-09-08 08:06:36,511 INFO L87 Difference]: Start difference. First operand 249244 states and 331196 transitions. Second operand 40 states. [2019-09-08 08:08:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:08:20,984 INFO L93 Difference]: Finished difference Result 862184 states and 1238785 transitions. [2019-09-08 08:08:20,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-09-08 08:08:20,984 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 193 [2019-09-08 08:08:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:08:23,467 INFO L225 Difference]: With dead ends: 862184 [2019-09-08 08:08:23,467 INFO L226 Difference]: Without dead ends: 807110 [2019-09-08 08:08:23,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 245 SyntacticMatches, 7 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12905 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4051, Invalid=28169, Unknown=0, NotChecked=0, Total=32220 [2019-09-08 08:08:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807110 states. [2019-09-08 08:09:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807110 to 698450. [2019-09-08 08:09:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698450 states. [2019-09-08 08:09:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698450 states to 698450 states and 930161 transitions. [2019-09-08 08:09:34,379 INFO L78 Accepts]: Start accepts. Automaton has 698450 states and 930161 transitions. Word has length 193 [2019-09-08 08:09:34,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:09:34,379 INFO L475 AbstractCegarLoop]: Abstraction has 698450 states and 930161 transitions. [2019-09-08 08:09:34,379 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-08 08:09:34,380 INFO L276 IsEmpty]: Start isEmpty. Operand 698450 states and 930161 transitions. [2019-09-08 08:09:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-08 08:09:34,478 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:09:34,479 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:34,479 INFO L418 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:09:34,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:09:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1817043562, now seen corresponding path program 1 times [2019-09-08 08:09:34,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:09:34,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:09:34,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:09:34,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:09:34,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:09:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:09:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-08 08:09:34,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:09:34,911 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:09:34,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:09:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:09:35,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 08:09:35,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:09:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-08 08:09:35,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 08:09:35,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [21] total 35 [2019-09-08 08:09:35,691 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-09-08 08:09:35,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-09-08 08:09:35,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1022, Unknown=0, NotChecked=0, Total=1190 [2019-09-08 08:09:35,692 INFO L87 Difference]: Start difference. First operand 698450 states and 930161 transitions. Second operand 35 states.