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.4_2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:32,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:32,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:32,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:32,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:32,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:32,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:32,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:32,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:32,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:32,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:32,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:32,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:32,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:32,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:32,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:32,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:32,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:32,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:32,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:32,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:32,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:32,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:32,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:32,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:32,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:32,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:32,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:32,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:32,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:32,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:32,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:32,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:32,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:32,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:32,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:32,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:32,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:32,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:32,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:32,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:32,823 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 19:46:32,839 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:32,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:32,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:32,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:32,841 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:32,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:32,842 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:32,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:32,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:32,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:32,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:32,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:32,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:32,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:32,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:32,844 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:32,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:32,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:32,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:32,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:32,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:32,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:32,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:32,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:32,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:32,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:32,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:32,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:32,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:33,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:33,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:33,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:33,205 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:33,205 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:33,206 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:33,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e71e2cfb/d9507b891cf340e78e5d19d192d247d0/FLAGe8d6c0f6e [2019-10-13 19:46:33,832 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:33,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:33,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e71e2cfb/d9507b891cf340e78e5d19d192d247d0/FLAGe8d6c0f6e [2019-10-13 19:46:34,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e71e2cfb/d9507b891cf340e78e5d19d192d247d0 [2019-10-13 19:46:34,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:34,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:34,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:34,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:34,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:34,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e20f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34, skipping insertion in model container [2019-10-13 19:46:34,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,173 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:34,232 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:34,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:34,652 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:34,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:34,806 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:34,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34 WrapperNode [2019-10-13 19:46:34,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:34,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:34,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:34,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:34,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (1/1) ... [2019-10-13 19:46:34,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:34,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:34,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:34,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:34,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (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 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-13 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-13 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-13 19:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:46:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-13 19:46:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-13 19:46:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:46:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 19:46:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-13 19:46:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-13 19:46:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:35,876 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:35,877 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:46:35,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:35 BoogieIcfgContainer [2019-10-13 19:46:35,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:35,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:35,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:35,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:35,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:34" (1/3) ... [2019-10-13 19:46:35,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccf315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:35, skipping insertion in model container [2019-10-13 19:46:35,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:34" (2/3) ... [2019-10-13 19:46:35,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccf315a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:35, skipping insertion in model container [2019-10-13 19:46:35,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:35" (3/3) ... [2019-10-13 19:46:35,888 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_2.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:35,898 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:35,908 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:35,920 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:35,948 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:35,948 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:35,948 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:35,948 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:35,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:35,949 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:35,949 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:35,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2019-10-13 19:46:35,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:46:35,984 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:35,986 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] [2019-10-13 19:46:35,988 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:35,993 INFO L82 PathProgramCache]: Analyzing trace with hash -512765460, now seen corresponding path program 1 times [2019-10-13 19:46:36,002 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:36,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572233752] [2019-10-13 19:46:36,002 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,629 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,984 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 19:46:36,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572233752] [2019-10-13 19:46:36,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:36,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:36,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580697302] [2019-10-13 19:46:36,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:36,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:37,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:37,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:37,008 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 11 states. [2019-10-13 19:46:37,292 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:39,758 INFO L93 Difference]: Finished difference Result 455 states and 698 transitions. [2019-10-13 19:46:39,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:39,759 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-13 19:46:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:39,775 INFO L225 Difference]: With dead ends: 455 [2019-10-13 19:46:39,775 INFO L226 Difference]: Without dead ends: 232 [2019-10-13 19:46:39,782 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 [2019-10-13 19:46:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-13 19:46:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2019-10-13 19:46:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-13 19:46:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 324 transitions. [2019-10-13 19:46:39,871 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 324 transitions. Word has length 65 [2019-10-13 19:46:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:39,872 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 324 transitions. [2019-10-13 19:46:39,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 324 transitions. [2019-10-13 19:46:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:46:39,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:39,876 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] [2019-10-13 19:46:39,876 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:39,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:39,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1221172995, now seen corresponding path program 1 times [2019-10-13 19:46:39,877 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:39,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956630711] [2019-10-13 19:46:39,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,128 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,342 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 19:46:40,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956630711] [2019-10-13 19:46:40,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:40,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:40,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30273397] [2019-10-13 19:46:40,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:40,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:40,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:40,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:40,346 INFO L87 Difference]: Start difference. First operand 232 states and 324 transitions. Second operand 11 states. [2019-10-13 19:46:41,322 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:41,475 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:42,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:42,659 INFO L93 Difference]: Finished difference Result 446 states and 636 transitions. [2019-10-13 19:46:42,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:42,660 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-13 19:46:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:42,663 INFO L225 Difference]: With dead ends: 446 [2019-10-13 19:46:42,664 INFO L226 Difference]: Without dead ends: 236 [2019-10-13 19:46:42,666 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 [2019-10-13 19:46:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-10-13 19:46:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-10-13 19:46:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-13 19:46:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2019-10-13 19:46:42,718 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 76 [2019-10-13 19:46:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:42,718 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2019-10-13 19:46:42,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2019-10-13 19:46:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:46:42,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:42,722 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] [2019-10-13 19:46:42,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2093661207, now seen corresponding path program 1 times [2019-10-13 19:46:42,723 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:42,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875511215] [2019-10-13 19:46:42,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:42,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:42,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:42,969 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,314 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 19:46:43,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875511215] [2019-10-13 19:46:43,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:43,315 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:43,315 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5183486] [2019-10-13 19:46:43,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:43,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:43,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:43,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:43,318 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand 16 states. [2019-10-13 19:46:43,547 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:44,978 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-13 19:46:45,678 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:47,679 INFO L93 Difference]: Finished difference Result 537 states and 746 transitions. [2019-10-13 19:46:47,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:47,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-13 19:46:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:47,684 INFO L225 Difference]: With dead ends: 537 [2019-10-13 19:46:47,685 INFO L226 Difference]: Without dead ends: 323 [2019-10-13 19:46:47,686 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 [2019-10-13 19:46:47,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-13 19:46:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2019-10-13 19:46:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-13 19:46:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-13 19:46:47,732 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 94 [2019-10-13 19:46:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:47,733 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-13 19:46:47,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-13 19:46:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 19:46:47,736 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:47,736 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] [2019-10-13 19:46:47,736 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:47,737 INFO L82 PathProgramCache]: Analyzing trace with hash 130349043, now seen corresponding path program 1 times [2019-10-13 19:46:47,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:47,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939539911] [2019-10-13 19:46:47,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:47,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:47,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,074 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,571 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 19:46:48,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939539911] [2019-10-13 19:46:48,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:48,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:48,573 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864741938] [2019-10-13 19:46:48,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:48,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:48,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:48,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:48,577 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 16 states. [2019-10-13 19:46:48,774 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:50,830 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:52,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:52,898 INFO L93 Difference]: Finished difference Result 543 states and 754 transitions. [2019-10-13 19:46:52,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:52,901 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-13 19:46:52,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:52,904 INFO L225 Difference]: With dead ends: 543 [2019-10-13 19:46:52,904 INFO L226 Difference]: Without dead ends: 326 [2019-10-13 19:46:52,906 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 19:46:52,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-13 19:46:52,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2019-10-13 19:46:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-13 19:46:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-13 19:46:52,943 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 95 [2019-10-13 19:46:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:52,943 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-13 19:46:52,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-13 19:46:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:52,945 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:52,946 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] [2019-10-13 19:46:52,946 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1810109727, now seen corresponding path program 1 times [2019-10-13 19:46:52,947 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:52,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789097494] [2019-10-13 19:46:52,947 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,947 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,148 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,506 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 19:46:53,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789097494] [2019-10-13 19:46:53,507 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:53,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:53,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766833166] [2019-10-13 19:46:53,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:53,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:53,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:53,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:53,509 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 12 states. [2019-10-13 19:46:54,253 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:57,081 INFO L93 Difference]: Finished difference Result 773 states and 1078 transitions. [2019-10-13 19:46:57,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:57,082 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:46:57,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:57,088 INFO L225 Difference]: With dead ends: 773 [2019-10-13 19:46:57,089 INFO L226 Difference]: Without dead ends: 556 [2019-10-13 19:46:57,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:46:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-13 19:46:57,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 538. [2019-10-13 19:46:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:46:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 746 transitions. [2019-10-13 19:46:57,156 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 746 transitions. Word has length 97 [2019-10-13 19:46:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:57,157 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 746 transitions. [2019-10-13 19:46:57,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 746 transitions. [2019-10-13 19:46:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:57,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:57,159 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] [2019-10-13 19:46:57,159 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:57,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1438423074, now seen corresponding path program 1 times [2019-10-13 19:46:57,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:57,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816207290] [2019-10-13 19:46:57,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,384 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,638 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 19:46:57,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816207290] [2019-10-13 19:46:57,639 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:57,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:57,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133007509] [2019-10-13 19:46:57,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:57,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:57,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:57,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:57,641 INFO L87 Difference]: Start difference. First operand 538 states and 746 transitions. Second operand 12 states. [2019-10-13 19:46:58,367 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-10-13 19:46:58,556 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-10-13 19:46:59,195 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:00,067 INFO L93 Difference]: Finished difference Result 929 states and 1310 transitions. [2019-10-13 19:47:00,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:47:00,073 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:47:00,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:00,077 INFO L225 Difference]: With dead ends: 929 [2019-10-13 19:47:00,077 INFO L226 Difference]: Without dead ends: 538 [2019-10-13 19:47:00,079 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:47:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-13 19:47:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-10-13 19:47:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:47:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 745 transitions. [2019-10-13 19:47:00,143 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 745 transitions. Word has length 98 [2019-10-13 19:47:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:00,144 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 745 transitions. [2019-10-13 19:47:00,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:47:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 745 transitions. [2019-10-13 19:47:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:47:00,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:00,146 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] [2019-10-13 19:47:00,146 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:00,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:00,147 INFO L82 PathProgramCache]: Analyzing trace with hash 737358496, now seen corresponding path program 1 times [2019-10-13 19:47:00,147 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:00,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127664405] [2019-10-13 19:47:00,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,147 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,315 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,625 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 19:47:00,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127664405] [2019-10-13 19:47:00,626 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:00,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:47:00,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635748903] [2019-10-13 19:47:00,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:47:00,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:00,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:47:00,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:47:00,633 INFO L87 Difference]: Start difference. First operand 538 states and 745 transitions. Second operand 12 states. [2019-10-13 19:47:01,651 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:04,301 INFO L93 Difference]: Finished difference Result 1171 states and 1643 transitions. [2019-10-13 19:47:04,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:47:04,302 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:47:04,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:04,307 INFO L225 Difference]: With dead ends: 1171 [2019-10-13 19:47:04,308 INFO L226 Difference]: Without dead ends: 730 [2019-10-13 19:47:04,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:47:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-10-13 19:47:04,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 724. [2019-10-13 19:47:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2019-10-13 19:47:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1010 transitions. [2019-10-13 19:47:04,383 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1010 transitions. Word has length 98 [2019-10-13 19:47:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:04,384 INFO L462 AbstractCegarLoop]: Abstraction has 724 states and 1010 transitions. [2019-10-13 19:47:04,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:47:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1010 transitions. [2019-10-13 19:47:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:47:04,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:04,386 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] [2019-10-13 19:47:04,386 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:04,387 INFO L82 PathProgramCache]: Analyzing trace with hash -638890142, now seen corresponding path program 1 times [2019-10-13 19:47:04,387 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:04,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191496220] [2019-10-13 19:47:04,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:04,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:04,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,590 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,806 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 19:47:04,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191496220] [2019-10-13 19:47:04,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:04,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:04,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731844017] [2019-10-13 19:47:04,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:04,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:04,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:04,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:04,809 INFO L87 Difference]: Start difference. First operand 724 states and 1010 transitions. Second operand 13 states. [2019-10-13 19:47:06,234 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:06,380 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:07,268 INFO L93 Difference]: Finished difference Result 1312 states and 1857 transitions. [2019-10-13 19:47:07,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:07,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2019-10-13 19:47:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:07,276 INFO L225 Difference]: With dead ends: 1312 [2019-10-13 19:47:07,276 INFO L226 Difference]: Without dead ends: 739 [2019-10-13 19:47:07,279 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:47:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-13 19:47:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2019-10-13 19:47:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2019-10-13 19:47:07,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1022 transitions. [2019-10-13 19:47:07,363 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1022 transitions. Word has length 98 [2019-10-13 19:47:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:07,363 INFO L462 AbstractCegarLoop]: Abstraction has 739 states and 1022 transitions. [2019-10-13 19:47:07,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1022 transitions. [2019-10-13 19:47:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 19:47:07,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:07,366 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] [2019-10-13 19:47:07,366 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash -397676862, now seen corresponding path program 1 times [2019-10-13 19:47:07,367 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:07,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638266689] [2019-10-13 19:47:07,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:07,368 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:07,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,564 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,773 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 19:47:07,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638266689] [2019-10-13 19:47:07,775 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:07,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:07,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141699970] [2019-10-13 19:47:07,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:07,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:07,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:07,776 INFO L87 Difference]: Start difference. First operand 739 states and 1022 transitions. Second operand 13 states. [2019-10-13 19:47:09,337 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:09,502 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:10,372 INFO L93 Difference]: Finished difference Result 1342 states and 1890 transitions. [2019-10-13 19:47:10,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:10,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2019-10-13 19:47:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:10,378 INFO L225 Difference]: With dead ends: 1342 [2019-10-13 19:47:10,379 INFO L226 Difference]: Without dead ends: 754 [2019-10-13 19:47:10,383 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 [2019-10-13 19:47:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-13 19:47:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2019-10-13 19:47:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2019-10-13 19:47:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1034 transitions. [2019-10-13 19:47:10,461 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1034 transitions. Word has length 106 [2019-10-13 19:47:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:10,462 INFO L462 AbstractCegarLoop]: Abstraction has 754 states and 1034 transitions. [2019-10-13 19:47:10,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1034 transitions. [2019-10-13 19:47:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 19:47:10,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:10,464 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] [2019-10-13 19:47:10,465 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:10,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1572879564, now seen corresponding path program 1 times [2019-10-13 19:47:10,465 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:10,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752480509] [2019-10-13 19:47:10,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:10,466 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:10,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,719 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:47:10,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752480509] [2019-10-13 19:47:10,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:10,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:10,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043677707] [2019-10-13 19:47:10,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:10,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:10,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:10,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:10,983 INFO L87 Difference]: Start difference. First operand 754 states and 1034 transitions. Second operand 13 states.