java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:45:25,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:45:25,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:45:25,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:45:25,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:45:25,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:45:25,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:45:25,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:45:25,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:45:25,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:45:25,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:45:25,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:45:25,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:45:25,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:45:25,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:45:25,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:45:25,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:45:25,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:45:25,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:45:25,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:45:25,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:45:25,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:45:25,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:45:25,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:45:25,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:45:25,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:45:25,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:45:25,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:45:25,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:45:25,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:45:25,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:45:25,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:45:25,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:45:25,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:45:25,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:45:25,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:45:25,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:45:25,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:45:25,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:45:25,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:45:25,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:45:25,755 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 [2019-10-14 23:45:25,778 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:45:25,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:45:25,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:45:25,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:45:25,780 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:45:25,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:45:25,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:45:25,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:45:25,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:45:25,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:45:25,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:45:25,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:45:25,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:45:25,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:45:25,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:45:25,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:45:25,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:45:25,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:45:25,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:45:25,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:45:25,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:45:25,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:45:25,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:45:25,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:45:25,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:45:25,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:45:25,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:45:25,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:45:25,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:45:26,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:45:26,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:45:26,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:45:26,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:45:26,124 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:45:26,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:26,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5648d67d7/3254648fe4fe40a4b7b06d6bc3d038a9/FLAG3ecce5cd6 [2019-10-14 23:45:26,720 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:45:26,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:26,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5648d67d7/3254648fe4fe40a4b7b06d6bc3d038a9/FLAG3ecce5cd6 [2019-10-14 23:45:27,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5648d67d7/3254648fe4fe40a4b7b06d6bc3d038a9 [2019-10-14 23:45:27,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:45:27,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:45:27,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:27,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:45:27,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:45:27,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e5469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27, skipping insertion in model container [2019-10-14 23:45:27,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,069 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:45:27,119 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:45:27,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:27,571 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:45:27,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:27,674 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:45:27,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27 WrapperNode [2019-10-14 23:45:27,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:27,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:45:27,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:45:27,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:45:27,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (1/1) ... [2019-10-14 23:45:27,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:45:27,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:45:27,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:45:27,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:45:27,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (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 [2019-10-14 23:45:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:45:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:45:27,809 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-14 23:45:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-14 23:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:45:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-14 23:45:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:45:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-14 23:45:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:45:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:45:28,693 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:45:28,693 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:45:28,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:28 BoogieIcfgContainer [2019-10-14 23:45:28,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:45:28,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:45:28,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:45:28,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:45:28,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:45:27" (1/3) ... [2019-10-14 23:45:28,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbb3927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:28, skipping insertion in model container [2019-10-14 23:45:28,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:27" (2/3) ... [2019-10-14 23:45:28,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbb3927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:28, skipping insertion in model container [2019-10-14 23:45:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:28" (3/3) ... [2019-10-14 23:45:28,703 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:28,713 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:45:28,720 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:45:28,731 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:45:28,759 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:45:28,759 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:45:28,760 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:45:28,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:45:28,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:45:28,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:45:28,762 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:45:28,762 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:45:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2019-10-14 23:45:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:45:28,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:28,797 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] [2019-10-14 23:45:28,801 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:28,808 INFO L82 PathProgramCache]: Analyzing trace with hash -512765460, now seen corresponding path program 1 times [2019-10-14 23:45:28,818 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:28,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290138240] [2019-10-14 23:45:28,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:28,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:28,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,400 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:29,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290138240] [2019-10-14 23:45:29,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:29,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:29,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212022038] [2019-10-14 23:45:29,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:29,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:29,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:29,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:29,812 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 11 states. [2019-10-14 23:45:30,098 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:31,466 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-14 23:45:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:32,578 INFO L93 Difference]: Finished difference Result 455 states and 698 transitions. [2019-10-14 23:45:32,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:32,580 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-14 23:45:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:32,600 INFO L225 Difference]: With dead ends: 455 [2019-10-14 23:45:32,601 INFO L226 Difference]: Without dead ends: 232 [2019-10-14 23:45:32,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:45:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-14 23:45:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2019-10-14 23:45:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-14 23:45:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 324 transitions. [2019-10-14 23:45:32,711 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 324 transitions. Word has length 65 [2019-10-14 23:45:32,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:32,728 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 324 transitions. [2019-10-14 23:45:32,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 324 transitions. [2019-10-14 23:45:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-14 23:45:32,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:32,733 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] [2019-10-14 23:45:32,733 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:32,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1221172995, now seen corresponding path program 1 times [2019-10-14 23:45:32,734 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:32,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570884518] [2019-10-14 23:45:32,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:32,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:32,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,020 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:33,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570884518] [2019-10-14 23:45:33,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:33,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:33,237 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626176952] [2019-10-14 23:45:33,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:33,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:33,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:33,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:33,243 INFO L87 Difference]: Start difference. First operand 232 states and 324 transitions. Second operand 11 states. [2019-10-14 23:45:34,353 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:45:34,499 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:35,680 INFO L93 Difference]: Finished difference Result 446 states and 636 transitions. [2019-10-14 23:45:35,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:35,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-14 23:45:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:35,686 INFO L225 Difference]: With dead ends: 446 [2019-10-14 23:45:35,686 INFO L226 Difference]: Without dead ends: 236 [2019-10-14 23:45:35,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:45:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-10-14 23:45:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-10-14 23:45:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-14 23:45:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2019-10-14 23:45:35,725 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 76 [2019-10-14 23:45:35,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:35,725 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2019-10-14 23:45:35,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2019-10-14 23:45:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:45:35,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:35,728 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] [2019-10-14 23:45:35,728 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:35,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:35,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2093661207, now seen corresponding path program 1 times [2019-10-14 23:45:35,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:35,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367060949] [2019-10-14 23:45:35,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:35,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:35,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,955 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:36,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367060949] [2019-10-14 23:45:36,283 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:36,283 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:36,283 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555422243] [2019-10-14 23:45:36,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:36,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:36,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:36,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:36,286 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand 16 states. [2019-10-14 23:45:36,492 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:37,865 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-14 23:45:38,570 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:40,606 INFO L93 Difference]: Finished difference Result 537 states and 746 transitions. [2019-10-14 23:45:40,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:40,608 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-14 23:45:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:40,619 INFO L225 Difference]: With dead ends: 537 [2019-10-14 23:45:40,619 INFO L226 Difference]: Without dead ends: 323 [2019-10-14 23:45:40,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-14 23:45:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-14 23:45:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2019-10-14 23:45:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-14 23:45:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-14 23:45:40,695 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 94 [2019-10-14 23:45:40,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:40,695 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-14 23:45:40,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-14 23:45:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-14 23:45:40,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:40,698 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] [2019-10-14 23:45:40,698 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 130349043, now seen corresponding path program 1 times [2019-10-14 23:45:40,699 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:40,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351357098] [2019-10-14 23:45:40,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:40,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:40,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,906 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:41,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351357098] [2019-10-14 23:45:41,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:41,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:41,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542309523] [2019-10-14 23:45:41,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:41,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:41,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:41,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:41,170 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 16 states. [2019-10-14 23:45:41,359 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:43,400 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:45,366 INFO L93 Difference]: Finished difference Result 543 states and 754 transitions. [2019-10-14 23:45:45,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:45,366 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-14 23:45:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:45,371 INFO L225 Difference]: With dead ends: 543 [2019-10-14 23:45:45,371 INFO L226 Difference]: Without dead ends: 326 [2019-10-14 23:45:45,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-14 23:45:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-14 23:45:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2019-10-14 23:45:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-14 23:45:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-14 23:45:45,407 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 95 [2019-10-14 23:45:45,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:45,407 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-14 23:45:45,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:45,408 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-14 23:45:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:45:45,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:45,410 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] [2019-10-14 23:45:45,410 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:45,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:45,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1810109727, now seen corresponding path program 1 times [2019-10-14 23:45:45,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:45,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660234293] [2019-10-14 23:45:45,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:45,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:45,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,623 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:45,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660234293] [2019-10-14 23:45:45,870 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:45,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:45,870 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042020815] [2019-10-14 23:45:45,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:45,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:45,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:45,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:45,872 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 12 states. [2019-10-14 23:45:46,724 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:46,889 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-10-14 23:45:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:49,776 INFO L93 Difference]: Finished difference Result 773 states and 1078 transitions. [2019-10-14 23:45:49,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:49,777 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:45:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:49,783 INFO L225 Difference]: With dead ends: 773 [2019-10-14 23:45:49,783 INFO L226 Difference]: Without dead ends: 556 [2019-10-14 23:45:49,785 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:45:49,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-14 23:45:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 538. [2019-10-14 23:45:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-14 23:45:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 746 transitions. [2019-10-14 23:45:49,845 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 746 transitions. Word has length 97 [2019-10-14 23:45:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:49,846 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 746 transitions. [2019-10-14 23:45:49,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:49,846 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 746 transitions. [2019-10-14 23:45:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:45:49,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:49,848 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] [2019-10-14 23:45:49,848 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:49,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:49,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1438423074, now seen corresponding path program 1 times [2019-10-14 23:45:49,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:49,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585226137] [2019-10-14 23:45:49,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:49,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:49,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,038 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:50,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585226137] [2019-10-14 23:45:50,258 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:50,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:50,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545217607] [2019-10-14 23:45:50,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:50,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:50,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:50,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:50,261 INFO L87 Difference]: Start difference. First operand 538 states and 746 transitions. Second operand 12 states. [2019-10-14 23:45:51,643 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:45:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:52,494 INFO L93 Difference]: Finished difference Result 929 states and 1310 transitions. [2019-10-14 23:45:52,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:52,495 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-14 23:45:52,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:52,501 INFO L225 Difference]: With dead ends: 929 [2019-10-14 23:45:52,502 INFO L226 Difference]: Without dead ends: 538 [2019-10-14 23:45:52,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:45:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-14 23:45:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-10-14 23:45:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-14 23:45:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 745 transitions. [2019-10-14 23:45:52,590 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 745 transitions. Word has length 98 [2019-10-14 23:45:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:52,592 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 745 transitions. [2019-10-14 23:45:52,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 745 transitions. [2019-10-14 23:45:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:45:52,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:52,594 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] [2019-10-14 23:45:52,594 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:52,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:52,595 INFO L82 PathProgramCache]: Analyzing trace with hash 737358496, now seen corresponding path program 1 times [2019-10-14 23:45:52,595 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:52,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079014823] [2019-10-14 23:45:52,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:52,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:52,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,778 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:53,029 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079014823] [2019-10-14 23:45:53,030 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:53,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:53,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2437083] [2019-10-14 23:45:53,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:53,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:53,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:53,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:53,032 INFO L87 Difference]: Start difference. First operand 538 states and 745 transitions. Second operand 12 states. [2019-10-14 23:45:54,110 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:56,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:56,660 INFO L93 Difference]: Finished difference Result 1171 states and 1643 transitions. [2019-10-14 23:45:56,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:56,660 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-14 23:45:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:56,664 INFO L225 Difference]: With dead ends: 1171 [2019-10-14 23:45:56,665 INFO L226 Difference]: Without dead ends: 730 [2019-10-14 23:45:56,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:45:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-10-14 23:45:56,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 724. [2019-10-14 23:45:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2019-10-14 23:45:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1010 transitions. [2019-10-14 23:45:56,736 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1010 transitions. Word has length 98 [2019-10-14 23:45:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:56,737 INFO L462 AbstractCegarLoop]: Abstraction has 724 states and 1010 transitions. [2019-10-14 23:45:56,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1010 transitions. [2019-10-14 23:45:56,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:45:56,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:56,739 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] [2019-10-14 23:45:56,739 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:56,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:56,740 INFO L82 PathProgramCache]: Analyzing trace with hash -638890142, now seen corresponding path program 1 times [2019-10-14 23:45:56,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:56,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367009925] [2019-10-14 23:45:56,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:56,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:56,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,009 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:57,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367009925] [2019-10-14 23:45:57,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:57,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:45:57,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328147315] [2019-10-14 23:45:57,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:45:57,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:57,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:45:57,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:45:57,282 INFO L87 Difference]: Start difference. First operand 724 states and 1010 transitions. Second operand 13 states. [2019-10-14 23:45:58,707 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:45:58,852 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:59,766 INFO L93 Difference]: Finished difference Result 1312 states and 1857 transitions. [2019-10-14 23:45:59,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:45:59,767 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2019-10-14 23:45:59,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:59,773 INFO L225 Difference]: With dead ends: 1312 [2019-10-14 23:45:59,773 INFO L226 Difference]: Without dead ends: 739 [2019-10-14 23:45:59,776 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:45:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-14 23:45:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2019-10-14 23:45:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2019-10-14 23:45:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1022 transitions. [2019-10-14 23:45:59,846 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1022 transitions. Word has length 98 [2019-10-14 23:45:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:59,846 INFO L462 AbstractCegarLoop]: Abstraction has 739 states and 1022 transitions. [2019-10-14 23:45:59,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:45:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1022 transitions. [2019-10-14 23:45:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-14 23:45:59,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:59,849 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] [2019-10-14 23:45:59,849 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash -397676862, now seen corresponding path program 1 times [2019-10-14 23:45:59,850 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:59,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779322176] [2019-10-14 23:45:59,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:59,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:59,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,057 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:00,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779322176] [2019-10-14 23:46:00,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:00,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:00,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323403062] [2019-10-14 23:46:00,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:00,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:00,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:00,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:00,355 INFO L87 Difference]: Start difference. First operand 739 states and 1022 transitions. Second operand 13 states. [2019-10-14 23:46:01,793 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:01,939 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:46:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:02,789 INFO L93 Difference]: Finished difference Result 1342 states and 1890 transitions. [2019-10-14 23:46:02,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:46:02,789 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2019-10-14 23:46:02,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:02,795 INFO L225 Difference]: With dead ends: 1342 [2019-10-14 23:46:02,795 INFO L226 Difference]: Without dead ends: 754 [2019-10-14 23:46:02,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:46:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-14 23:46:02,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2019-10-14 23:46:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2019-10-14 23:46:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1034 transitions. [2019-10-14 23:46:02,866 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1034 transitions. Word has length 106 [2019-10-14 23:46:02,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:02,866 INFO L462 AbstractCegarLoop]: Abstraction has 754 states and 1034 transitions. [2019-10-14 23:46:02,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:46:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1034 transitions. [2019-10-14 23:46:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-14 23:46:02,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:02,869 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:46:02,869 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:02,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1572879564, now seen corresponding path program 1 times [2019-10-14 23:46:02,869 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:02,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767941255] [2019-10-14 23:46:02,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:02,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:02,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,058 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:03,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767941255] [2019-10-14 23:46:03,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:03,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:03,266 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219022783] [2019-10-14 23:46:03,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:03,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:03,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:03,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:03,268 INFO L87 Difference]: Start difference. First operand 754 states and 1034 transitions. Second operand 13 states.