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/loop-invgen/apache-get-tag.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:16:16,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:16:16,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:16:16,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:16:16,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:16:16,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:16:16,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:16:16,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:16:16,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:16:16,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:16:16,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:16:16,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:16:16,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:16:16,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:16:16,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:16:16,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:16:16,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:16:16,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:16:16,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:16:16,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:16:16,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:16:16,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:16:16,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:16:16,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:16:16,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:16:16,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:16:16,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:16:16,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:16:16,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:16:16,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:16:16,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:16:16,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:16:16,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:16:16,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:16:16,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:16:16,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:16:16,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:16:16,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:16:16,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:16:16,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:16:16,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:16:16,525 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 [2019-10-13 19:16:16,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:16:16,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:16:16,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:16:16,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:16:16,541 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:16:16,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:16:16,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:16:16,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:16:16,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:16:16,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:16:16,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:16:16,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:16:16,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:16:16,543 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:16:16,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:16:16,543 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:16:16,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:16:16,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:16:16,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:16:16,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:16:16,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:16:16,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:16:16,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:16:16,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:16:16,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:16:16,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:16:16,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:16:16,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:16:16,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:16:16,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:16:16,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:16:16,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:16:16,882 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:16:16,882 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:16:16,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+sep-reducer.c [2019-10-13 19:16:16,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd858090/f05b0cf872f7497f8d5bff2d4b9106d6/FLAG078f7b868 [2019-10-13 19:16:17,580 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:16:17,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+sep-reducer.c [2019-10-13 19:16:17,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd858090/f05b0cf872f7497f8d5bff2d4b9106d6/FLAG078f7b868 [2019-10-13 19:16:17,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dd858090/f05b0cf872f7497f8d5bff2d4b9106d6 [2019-10-13 19:16:17,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:16:17,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:16:17,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:17,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:16:17,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:16:17,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:17" (1/1) ... [2019-10-13 19:16:17,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db268e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:17, skipping insertion in model container [2019-10-13 19:16:17,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:17" (1/1) ... [2019-10-13 19:16:17,853 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:16:17,960 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:16:18,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:18,947 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:16:19,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:19,328 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:16:19,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19 WrapperNode [2019-10-13 19:16:19,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:19,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:16:19,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:16:19,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:16:19,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (1/1) ... [2019-10-13 19:16:19,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:16:19,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:16:19,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:16:19,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:16:19,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (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 [2019-10-13 19:16:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:16:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:16:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:16:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:16:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:16:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:16:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:16:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:16:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:16:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:16:22,238 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:16:22,239 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:16:22,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:22 BoogieIcfgContainer [2019-10-13 19:16:22,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:16:22,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:16:22,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:16:22,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:16:22,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:17" (1/3) ... [2019-10-13 19:16:22,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f10cc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:22, skipping insertion in model container [2019-10-13 19:16:22,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:19" (2/3) ... [2019-10-13 19:16:22,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f10cc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:22, skipping insertion in model container [2019-10-13 19:16:22,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:22" (3/3) ... [2019-10-13 19:16:22,259 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+sep-reducer.c [2019-10-13 19:16:22,270 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:16:22,281 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-10-13 19:16:22,289 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-10-13 19:16:22,332 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:16:22,332 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:16:22,332 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:16:22,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:16:22,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:16:22,333 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:16:22,333 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:16:22,333 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:16:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2019-10-13 19:16:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 19:16:22,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:22,386 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:22,389 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1514750688, now seen corresponding path program 1 times [2019-10-13 19:16:22,404 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:22,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058071426] [2019-10-13 19:16:22,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:22,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:22,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:22,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058071426] [2019-10-13 19:16:22,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:22,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:16:22,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865332807] [2019-10-13 19:16:22,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:16:22,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:22,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:16:22,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:16:22,716 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 5 states. [2019-10-13 19:16:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:25,144 INFO L93 Difference]: Finished difference Result 499 states and 926 transitions. [2019-10-13 19:16:25,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:16:25,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-13 19:16:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:25,160 INFO L225 Difference]: With dead ends: 499 [2019-10-13 19:16:25,160 INFO L226 Difference]: Without dead ends: 306 [2019-10-13 19:16:25,165 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:16:25,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-13 19:16:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 301. [2019-10-13 19:16:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-13 19:16:25,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 364 transitions. [2019-10-13 19:16:25,231 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 364 transitions. Word has length 11 [2019-10-13 19:16:25,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:25,231 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 364 transitions. [2019-10-13 19:16:25,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:16:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 364 transitions. [2019-10-13 19:16:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 19:16:25,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:25,233 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:25,233 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash 287371989, now seen corresponding path program 1 times [2019-10-13 19:16:25,234 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:25,234 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118558688] [2019-10-13 19:16:25,234 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:25,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:25,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:25,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:25,360 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118558688] [2019-10-13 19:16:25,360 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:25,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:16:25,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879352598] [2019-10-13 19:16:25,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:16:25,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:25,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:16:25,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:16:25,364 INFO L87 Difference]: Start difference. First operand 301 states and 364 transitions. Second operand 5 states. [2019-10-13 19:16:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:26,350 INFO L93 Difference]: Finished difference Result 304 states and 367 transitions. [2019-10-13 19:16:26,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:16:26,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-13 19:16:26,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:26,354 INFO L225 Difference]: With dead ends: 304 [2019-10-13 19:16:26,354 INFO L226 Difference]: Without dead ends: 296 [2019-10-13 19:16:26,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:16:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-10-13 19:16:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-10-13 19:16:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-10-13 19:16:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 299 transitions. [2019-10-13 19:16:26,376 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 299 transitions. Word has length 12 [2019-10-13 19:16:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:26,377 INFO L462 AbstractCegarLoop]: Abstraction has 296 states and 299 transitions. [2019-10-13 19:16:26,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:16:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 299 transitions. [2019-10-13 19:16:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 19:16:26,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:26,388 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:26,388 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:26,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:26,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1097283636, now seen corresponding path program 1 times [2019-10-13 19:16:26,390 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:26,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787209441] [2019-10-13 19:16:26,390 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:26,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:26,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:28,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787209441] [2019-10-13 19:16:28,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:28,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2019-10-13 19:16:28,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970547276] [2019-10-13 19:16:28,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2019-10-13 19:16:28,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:28,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2019-10-13 19:16:28,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=2138, Unknown=0, NotChecked=0, Total=4032 [2019-10-13 19:16:28,913 INFO L87 Difference]: Start difference. First operand 296 states and 299 transitions. Second operand 64 states. [2019-10-13 19:16:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:34,073 INFO L93 Difference]: Finished difference Result 297 states and 300 transitions. [2019-10-13 19:16:34,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-10-13 19:16:34,074 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 248 [2019-10-13 19:16:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:34,077 INFO L225 Difference]: With dead ends: 297 [2019-10-13 19:16:34,078 INFO L226 Difference]: Without dead ends: 295 [2019-10-13 19:16:34,089 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5673, Invalid=9579, Unknown=0, NotChecked=0, Total=15252 [2019-10-13 19:16:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-10-13 19:16:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 294. [2019-10-13 19:16:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-13 19:16:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 297 transitions. [2019-10-13 19:16:34,113 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 297 transitions. Word has length 248 [2019-10-13 19:16:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:34,115 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 297 transitions. [2019-10-13 19:16:34,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 64 states. [2019-10-13 19:16:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 297 transitions. [2019-10-13 19:16:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 19:16:34,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:34,132 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:34,135 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:34,137 INFO L82 PathProgramCache]: Analyzing trace with hash -343940819, now seen corresponding path program 1 times [2019-10-13 19:16:34,137 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:34,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055340629] [2019-10-13 19:16:34,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:34,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:34,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:35,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055340629] [2019-10-13 19:16:35,834 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:35,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:16:35,835 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709800676] [2019-10-13 19:16:35,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:16:35,836 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:35,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:16:35,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:16:35,838 INFO L87 Difference]: Start difference. First operand 294 states and 297 transitions. Second operand 7 states. [2019-10-13 19:16:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:36,891 INFO L93 Difference]: Finished difference Result 296 states and 299 transitions. [2019-10-13 19:16:36,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:16:36,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2019-10-13 19:16:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:36,895 INFO L225 Difference]: With dead ends: 296 [2019-10-13 19:16:36,896 INFO L226 Difference]: Without dead ends: 294 [2019-10-13 19:16:36,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 120 SyntacticMatches, 59 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:16:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-10-13 19:16:36,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2019-10-13 19:16:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-10-13 19:16:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 295 transitions. [2019-10-13 19:16:36,904 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 295 transitions. Word has length 249 [2019-10-13 19:16:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:36,905 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 295 transitions. [2019-10-13 19:16:36,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:16:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 295 transitions. [2019-10-13 19:16:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-13 19:16:36,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:36,910 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:36,910 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:36,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:36,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1455800989, now seen corresponding path program 1 times [2019-10-13 19:16:36,911 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:36,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410074882] [2019-10-13 19:16:36,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:36,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:36,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:38,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410074882] [2019-10-13 19:16:38,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:38,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2019-10-13 19:16:38,831 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879282141] [2019-10-13 19:16:38,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2019-10-13 19:16:38,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:38,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2019-10-13 19:16:38,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2019, Invalid=2271, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 19:16:38,834 INFO L87 Difference]: Start difference. First operand 292 states and 295 transitions. Second operand 66 states. [2019-10-13 19:16:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:43,715 INFO L93 Difference]: Finished difference Result 295 states and 298 transitions. [2019-10-13 19:16:43,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-10-13 19:16:43,716 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 252 [2019-10-13 19:16:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:43,718 INFO L225 Difference]: With dead ends: 295 [2019-10-13 19:16:43,718 INFO L226 Difference]: Without dead ends: 293 [2019-10-13 19:16:43,723 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5923, Invalid=10079, Unknown=0, NotChecked=0, Total=16002 [2019-10-13 19:16:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-10-13 19:16:43,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2019-10-13 19:16:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-13 19:16:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 293 transitions. [2019-10-13 19:16:43,733 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 293 transitions. Word has length 252 [2019-10-13 19:16:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:43,734 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 293 transitions. [2019-10-13 19:16:43,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 66 states. [2019-10-13 19:16:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 293 transitions. [2019-10-13 19:16:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-13 19:16:43,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:43,738 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:43,739 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:43,739 INFO L82 PathProgramCache]: Analyzing trace with hash -2114804744, now seen corresponding path program 1 times [2019-10-13 19:16:43,739 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:43,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942774771] [2019-10-13 19:16:43,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:43,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:43,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:44,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942774771] [2019-10-13 19:16:44,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:44,641 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:16:44,642 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129956982] [2019-10-13 19:16:44,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:16:44,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:44,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:16:44,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:16:44,645 INFO L87 Difference]: Start difference. First operand 290 states and 293 transitions. Second operand 7 states. [2019-10-13 19:16:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:45,542 INFO L93 Difference]: Finished difference Result 290 states and 293 transitions. [2019-10-13 19:16:45,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:16:45,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2019-10-13 19:16:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:45,546 INFO L225 Difference]: With dead ends: 290 [2019-10-13 19:16:45,546 INFO L226 Difference]: Without dead ends: 288 [2019-10-13 19:16:45,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 122 SyntacticMatches, 60 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:16:45,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-10-13 19:16:45,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2019-10-13 19:16:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2019-10-13 19:16:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 291 transitions. [2019-10-13 19:16:45,553 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 291 transitions. Word has length 253 [2019-10-13 19:16:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:45,554 INFO L462 AbstractCegarLoop]: Abstraction has 288 states and 291 transitions. [2019-10-13 19:16:45,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:16:45,554 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 291 transitions. [2019-10-13 19:16:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-13 19:16:45,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:45,558 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:45,558 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:45,559 INFO L82 PathProgramCache]: Analyzing trace with hash -807674468, now seen corresponding path program 1 times [2019-10-13 19:16:45,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:45,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162001761] [2019-10-13 19:16:45,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:45,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:45,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:47,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162001761] [2019-10-13 19:16:47,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:47,404 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2019-10-13 19:16:47,404 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689177581] [2019-10-13 19:16:47,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-10-13 19:16:47,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:47,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-10-13 19:16:47,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2083, Invalid=2339, Unknown=0, NotChecked=0, Total=4422 [2019-10-13 19:16:47,406 INFO L87 Difference]: Start difference. First operand 288 states and 291 transitions. Second operand 67 states. [2019-10-13 19:16:52,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:52,382 INFO L93 Difference]: Finished difference Result 298 states and 302 transitions. [2019-10-13 19:16:52,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-10-13 19:16:52,383 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 255 [2019-10-13 19:16:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:52,387 INFO L225 Difference]: With dead ends: 298 [2019-10-13 19:16:52,387 INFO L226 Difference]: Without dead ends: 296 [2019-10-13 19:16:52,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2135 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5988, Invalid=10268, Unknown=0, NotChecked=0, Total=16256 [2019-10-13 19:16:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-10-13 19:16:52,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 286. [2019-10-13 19:16:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2019-10-13 19:16:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 289 transitions. [2019-10-13 19:16:52,404 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 289 transitions. Word has length 255 [2019-10-13 19:16:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:52,404 INFO L462 AbstractCegarLoop]: Abstraction has 286 states and 289 transitions. [2019-10-13 19:16:52,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-10-13 19:16:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 289 transitions. [2019-10-13 19:16:52,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-13 19:16:52,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:52,408 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:52,409 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:52,410 INFO L82 PathProgramCache]: Analyzing trace with hash 731900137, now seen corresponding path program 1 times [2019-10-13 19:16:52,410 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:52,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908715235] [2019-10-13 19:16:52,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:52,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:52,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:52,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908715235] [2019-10-13 19:16:52,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:52,602 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:16:52,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248685810] [2019-10-13 19:16:52,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:16:52,604 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:52,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:16:52,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:16:52,604 INFO L87 Difference]: Start difference. First operand 286 states and 289 transitions. Second operand 5 states. [2019-10-13 19:16:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:53,318 INFO L93 Difference]: Finished difference Result 286 states and 289 transitions. [2019-10-13 19:16:53,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:16:53,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2019-10-13 19:16:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:53,326 INFO L225 Difference]: With dead ends: 286 [2019-10-13 19:16:53,326 INFO L226 Difference]: Without dead ends: 282 [2019-10-13 19:16:53,326 INFO L600 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 [2019-10-13 19:16:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-10-13 19:16:53,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2019-10-13 19:16:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-10-13 19:16:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 285 transitions. [2019-10-13 19:16:53,333 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 285 transitions. Word has length 256 [2019-10-13 19:16:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:53,334 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 285 transitions. [2019-10-13 19:16:53,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:16:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 285 transitions. [2019-10-13 19:16:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 19:16:53,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:53,338 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:53,338 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:53,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1228876781, now seen corresponding path program 1 times [2019-10-13 19:16:53,339 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:53,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507036260] [2019-10-13 19:16:53,339 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:53,340 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:53,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY