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-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:45:48,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:45:48,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:45:48,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:45:48,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:45:48,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:45:48,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:45:48,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:45:48,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:45:48,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:45:48,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:45:48,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:45:48,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:45:48,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:45:48,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:45:48,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:45:48,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:45:48,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:45:48,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:45:48,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:45:48,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:45:48,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:45:48,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:45:48,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:45:48,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:45:48,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:45:48,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:45:48,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:45:48,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:45:48,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:45:48,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:45:48,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:45:48,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:45:48,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:45:48,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:45:48,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:45:48,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:45:48,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:45:48,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:45:48,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:45:48,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:45:48,679 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 19:45:48,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:45:48,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:45:48,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:45:48,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:45:48,721 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:45:48,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:45:48,721 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:45:48,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:45:48,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:45:48,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:45:48,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:45:48,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:45:48,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:45:48,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:45:48,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:45:48,725 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:45:48,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:45:48,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:45:48,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:45:48,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:45:48,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:45:48,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:45:48,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:45:48,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:45:48,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:45:48,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:45:48,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:45:48,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:45:48,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:45:49,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:45:49,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:45:49,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:45:49,059 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:45:49,059 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:45:49,060 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:49,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955/FLAG875fe64e0 [2019-10-13 19:45:49,729 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:45:49,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:49,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955/FLAG875fe64e0 [2019-10-13 19:45:49,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a60d8a7/82ff9a74e20f45f7ab85c480ca4cf955 [2019-10-13 19:45:50,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:45:50,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:45:50,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:45:50,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:45:50,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:45:50,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:49" (1/1) ... [2019-10-13 19:45:50,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5d4e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:50, skipping insertion in model container [2019-10-13 19:45:50,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:49" (1/1) ... [2019-10-13 19:45:50,023 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:45:50,106 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:45:50,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:45:50,825 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:45:51,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:45:51,283 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:45:51,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51 WrapperNode [2019-10-13 19:45:51,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:45:51,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:45:51,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:45:51,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:45:51,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (1/1) ... [2019-10-13 19:45:51,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:45:51,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:45:51,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:45:51,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:45:51,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (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 19:45:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:45:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:45:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:45:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:45:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:45:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:45:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:45:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:45:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:45:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:45:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-10-13 19:45:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-10-13 19:45:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-10-13 19:45:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:45:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:45:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:45:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:45:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:45:53,359 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:45:53,359 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:45:53,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:53 BoogieIcfgContainer [2019-10-13 19:45:53,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:45:53,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:45:53,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:45:53,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:45:53,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:45:49" (1/3) ... [2019-10-13 19:45:53,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b036ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:53, skipping insertion in model container [2019-10-13 19:45:53,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:51" (2/3) ... [2019-10-13 19:45:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b036ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:53, skipping insertion in model container [2019-10-13 19:45:53,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:53" (3/3) ... [2019-10-13 19:45:53,380 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:53,394 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:45:53,417 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-13 19:45:53,432 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-13 19:45:53,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:45:53,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:45:53,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:45:53,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:45:53,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:45:53,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:45:53,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:45:53,478 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:45:53,518 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states. [2019-10-13 19:45:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 19:45:53,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:53,552 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] [2019-10-13 19:45:53,554 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:53,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:53,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1370932676, now seen corresponding path program 1 times [2019-10-13 19:45:53,571 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:53,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433466999] [2019-10-13 19:45:53,572 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:53,572 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:53,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:54,559 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:45:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:54,641 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 19:45:54,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433466999] [2019-10-13 19:45:54,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:54,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:45:54,644 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686321583] [2019-10-13 19:45:54,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:45:54,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:54,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:45:54,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:54,668 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 4 states. [2019-10-13 19:45:55,050 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2019-10-13 19:45:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:57,878 INFO L93 Difference]: Finished difference Result 754 states and 1320 transitions. [2019-10-13 19:45:57,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:45:57,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-13 19:45:57,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:57,903 INFO L225 Difference]: With dead ends: 754 [2019-10-13 19:45:57,903 INFO L226 Difference]: Without dead ends: 593 [2019-10-13 19:45:57,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-13 19:45:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591. [2019-10-13 19:45:58,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-13 19:45:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 870 transitions. [2019-10-13 19:45:58,006 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 870 transitions. Word has length 146 [2019-10-13 19:45:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:58,007 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 870 transitions. [2019-10-13 19:45:58,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:45:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 870 transitions. [2019-10-13 19:45:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 19:45:58,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:58,011 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] [2019-10-13 19:45:58,012 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash 949503868, now seen corresponding path program 1 times [2019-10-13 19:45:58,012 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:58,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352259625] [2019-10-13 19:45:58,013 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:58,013 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:58,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:58,516 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:45:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:58,563 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 19:45:58,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352259625] [2019-10-13 19:45:58,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:58,564 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:45:58,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454306559] [2019-10-13 19:45:58,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:45:58,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:45:58,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:58,567 INFO L87 Difference]: Start difference. First operand 591 states and 870 transitions. Second operand 4 states. [2019-10-13 19:45:58,855 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2019-10-13 19:46:01,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:01,025 INFO L93 Difference]: Finished difference Result 1192 states and 1809 transitions. [2019-10-13 19:46:01,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:01,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-13 19:46:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:01,039 INFO L225 Difference]: With dead ends: 1192 [2019-10-13 19:46:01,039 INFO L226 Difference]: Without dead ends: 979 [2019-10-13 19:46:01,043 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2019-10-13 19:46:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 977. [2019-10-13 19:46:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2019-10-13 19:46:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1462 transitions. [2019-10-13 19:46:01,126 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1462 transitions. Word has length 146 [2019-10-13 19:46:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:01,129 INFO L462 AbstractCegarLoop]: Abstraction has 977 states and 1462 transitions. [2019-10-13 19:46:01,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1462 transitions. [2019-10-13 19:46:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 19:46:01,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:01,134 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] [2019-10-13 19:46:01,135 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:01,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:01,136 INFO L82 PathProgramCache]: Analyzing trace with hash 949165244, now seen corresponding path program 1 times [2019-10-13 19:46:01,136 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:01,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596895045] [2019-10-13 19:46:01,137 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:01,137 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:01,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:01,971 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:02,024 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 19:46:02,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596895045] [2019-10-13 19:46:02,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:02,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:02,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130383699] [2019-10-13 19:46:02,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:02,037 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:02,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:02,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:02,038 INFO L87 Difference]: Start difference. First operand 977 states and 1462 transitions. Second operand 5 states. [2019-10-13 19:46:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:05,504 INFO L93 Difference]: Finished difference Result 2853 states and 4261 transitions. [2019-10-13 19:46:05,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:05,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-10-13 19:46:05,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:05,522 INFO L225 Difference]: With dead ends: 2853 [2019-10-13 19:46:05,522 INFO L226 Difference]: Without dead ends: 1889 [2019-10-13 19:46:05,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2019-10-13 19:46:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1849. [2019-10-13 19:46:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2019-10-13 19:46:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2753 transitions. [2019-10-13 19:46:05,607 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2753 transitions. Word has length 146 [2019-10-13 19:46:05,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:05,607 INFO L462 AbstractCegarLoop]: Abstraction has 1849 states and 2753 transitions. [2019-10-13 19:46:05,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2753 transitions. [2019-10-13 19:46:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 19:46:05,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:05,614 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] [2019-10-13 19:46:05,614 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash 538456924, now seen corresponding path program 1 times [2019-10-13 19:46:05,615 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:05,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359573157] [2019-10-13 19:46:05,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:05,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:05,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:05,950 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:06,022 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 19:46:06,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359573157] [2019-10-13 19:46:06,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:06,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:06,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258114540] [2019-10-13 19:46:06,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:06,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:06,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:06,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:06,025 INFO L87 Difference]: Start difference. First operand 1849 states and 2753 transitions. Second operand 4 states. [2019-10-13 19:46:09,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:09,294 INFO L93 Difference]: Finished difference Result 5501 states and 8189 transitions. [2019-10-13 19:46:09,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:09,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2019-10-13 19:46:09,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:09,313 INFO L225 Difference]: With dead ends: 5501 [2019-10-13 19:46:09,314 INFO L226 Difference]: Without dead ends: 3684 [2019-10-13 19:46:09,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2019-10-13 19:46:09,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 1851. [2019-10-13 19:46:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1851 states. [2019-10-13 19:46:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2755 transitions. [2019-10-13 19:46:09,414 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2755 transitions. Word has length 147 [2019-10-13 19:46:09,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:09,414 INFO L462 AbstractCegarLoop]: Abstraction has 1851 states and 2755 transitions. [2019-10-13 19:46:09,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2755 transitions. [2019-10-13 19:46:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:46:09,420 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:09,420 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] [2019-10-13 19:46:09,420 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:09,421 INFO L82 PathProgramCache]: Analyzing trace with hash 633413372, now seen corresponding path program 1 times [2019-10-13 19:46:09,421 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:09,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345726207] [2019-10-13 19:46:09,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:09,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:09,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:09,882 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:10,017 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 19:46:10,018 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345726207] [2019-10-13 19:46:10,018 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:10,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:10,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883361891] [2019-10-13 19:46:10,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:10,019 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:10,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:10,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:10,020 INFO L87 Difference]: Start difference. First operand 1851 states and 2755 transitions. Second operand 4 states. [2019-10-13 19:46:13,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:13,293 INFO L93 Difference]: Finished difference Result 5242 states and 7802 transitions. [2019-10-13 19:46:13,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:13,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2019-10-13 19:46:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:13,311 INFO L225 Difference]: With dead ends: 5242 [2019-10-13 19:46:13,312 INFO L226 Difference]: Without dead ends: 3578 [2019-10-13 19:46:13,316 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:13,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2019-10-13 19:46:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3538. [2019-10-13 19:46:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3538 states. [2019-10-13 19:46:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5226 transitions. [2019-10-13 19:46:13,450 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 5226 transitions. Word has length 148 [2019-10-13 19:46:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:13,450 INFO L462 AbstractCegarLoop]: Abstraction has 3538 states and 5226 transitions. [2019-10-13 19:46:13,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 5226 transitions. [2019-10-13 19:46:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:46:13,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:13,457 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] [2019-10-13 19:46:13,457 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash -898154727, now seen corresponding path program 1 times [2019-10-13 19:46:13,458 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:13,458 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481266449] [2019-10-13 19:46:13,458 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:13,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:13,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:14,025 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:14,061 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 19:46:14,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481266449] [2019-10-13 19:46:14,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:14,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:14,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674201432] [2019-10-13 19:46:14,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:14,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:14,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:14,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:14,071 INFO L87 Difference]: Start difference. First operand 3538 states and 5226 transitions. Second operand 5 states. [2019-10-13 19:46:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:16,217 INFO L93 Difference]: Finished difference Result 7326 states and 10753 transitions. [2019-10-13 19:46:16,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:16,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-10-13 19:46:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:16,234 INFO L225 Difference]: With dead ends: 7326 [2019-10-13 19:46:16,234 INFO L226 Difference]: Without dead ends: 3729 [2019-10-13 19:46:16,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2019-10-13 19:46:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3689. [2019-10-13 19:46:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3689 states. [2019-10-13 19:46:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5386 transitions. [2019-10-13 19:46:16,364 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5386 transitions. Word has length 148 [2019-10-13 19:46:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:16,365 INFO L462 AbstractCegarLoop]: Abstraction has 3689 states and 5386 transitions. [2019-10-13 19:46:16,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5386 transitions. [2019-10-13 19:46:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 19:46:16,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:16,373 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] [2019-10-13 19:46:16,373 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:16,374 INFO L82 PathProgramCache]: Analyzing trace with hash 869668669, now seen corresponding path program 1 times [2019-10-13 19:46:16,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:16,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033004188] [2019-10-13 19:46:16,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:16,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:16,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:16,856 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:16,896 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 19:46:16,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033004188] [2019-10-13 19:46:16,897 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:16,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:16,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939870364] [2019-10-13 19:46:16,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:16,898 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:16,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:16,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:16,899 INFO L87 Difference]: Start difference. First operand 3689 states and 5386 transitions. Second operand 5 states. [2019-10-13 19:46:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:19,895 INFO L93 Difference]: Finished difference Result 10707 states and 15556 transitions. [2019-10-13 19:46:19,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:46:19,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-10-13 19:46:19,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:19,922 INFO L225 Difference]: With dead ends: 10707 [2019-10-13 19:46:19,922 INFO L226 Difference]: Without dead ends: 7090 [2019-10-13 19:46:19,929 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:46:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2019-10-13 19:46:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7050. [2019-10-13 19:46:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7050 states. [2019-10-13 19:46:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10162 transitions. [2019-10-13 19:46:20,193 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10162 transitions. Word has length 148 [2019-10-13 19:46:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:20,193 INFO L462 AbstractCegarLoop]: Abstraction has 7050 states and 10162 transitions. [2019-10-13 19:46:20,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:46:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10162 transitions. [2019-10-13 19:46:20,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 19:46:20,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:20,203 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] [2019-10-13 19:46:20,204 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:20,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:20,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1355279811, now seen corresponding path program 1 times [2019-10-13 19:46:20,204 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:20,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012563246] [2019-10-13 19:46:20,205 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:20,205 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:20,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:20,591 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:20,641 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 19:46:20,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012563246] [2019-10-13 19:46:20,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:20,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:46:20,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382313201] [2019-10-13 19:46:20,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:46:20,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:20,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:46:20,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:20,646 INFO L87 Difference]: Start difference. First operand 7050 states and 10162 transitions. Second operand 4 states. [2019-10-13 19:46:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:22,757 INFO L93 Difference]: Finished difference Result 20956 states and 30182 transitions. [2019-10-13 19:46:22,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:46:22,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2019-10-13 19:46:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:22,803 INFO L225 Difference]: With dead ends: 20956 [2019-10-13 19:46:22,804 INFO L226 Difference]: Without dead ends: 14022 [2019-10-13 19:46:22,817 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:46:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14022 states. [2019-10-13 19:46:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14022 to 7062. [2019-10-13 19:46:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7062 states. [2019-10-13 19:46:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7062 states to 7062 states and 10174 transitions. [2019-10-13 19:46:23,212 INFO L78 Accepts]: Start accepts. Automaton has 7062 states and 10174 transitions. Word has length 149 [2019-10-13 19:46:23,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:23,212 INFO L462 AbstractCegarLoop]: Abstraction has 7062 states and 10174 transitions. [2019-10-13 19:46:23,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:46:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7062 states and 10174 transitions. [2019-10-13 19:46:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:46:23,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:23,223 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] [2019-10-13 19:46:23,223 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:23,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:23,224 INFO L82 PathProgramCache]: Analyzing trace with hash 562177598, now seen corresponding path program 1 times [2019-10-13 19:46:23,224 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:23,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580422471] [2019-10-13 19:46:23,224 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:23,225 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:23,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:23,663 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:46:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:23,704 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 19:46:23,705 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580422471] [2019-10-13 19:46:23,705 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:23,705 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:46:23,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933064954] [2019-10-13 19:46:23,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:46:23,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:23,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:46:23,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:46:23,707 INFO L87 Difference]: Start difference. First operand 7062 states and 10174 transitions. Second operand 5 states.