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_1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:29,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:29,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:29,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:29,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:29,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:29,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:29,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:29,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:29,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:29,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:29,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:29,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:29,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:29,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:29,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:29,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:29,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:29,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:29,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:29,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:29,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:29,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:29,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:29,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:29,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:29,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:29,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:29,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:29,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:29,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:29,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:29,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:29,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:29,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:29,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:29,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:29,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:29,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:29,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:29,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:29,923 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 19:46:29,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:29,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:29,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:29,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:29,940 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:29,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:29,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:29,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:29,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:29,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:29,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:29,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:29,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:29,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:29,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:29,942 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:29,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:29,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:29,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:29,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:29,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:29,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:29,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:29,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:29,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:29,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:29,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:29,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:29,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:30,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:30,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:30,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:30,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:30,223 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:30,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:30,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6781d75e4/826b1c6f7f0040ab998d57aab4df078e/FLAGd354dbfd3 [2019-10-13 19:46:30,867 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:30,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:30,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6781d75e4/826b1c6f7f0040ab998d57aab4df078e/FLAGd354dbfd3 [2019-10-13 19:46:31,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6781d75e4/826b1c6f7f0040ab998d57aab4df078e [2019-10-13 19:46:31,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:31,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:31,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:31,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:31,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:31,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af0630d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31, skipping insertion in model container [2019-10-13 19:46:31,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,281 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:31,333 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:31,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:31,788 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:31,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:31,877 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:31,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31 WrapperNode [2019-10-13 19:46:31,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:31,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:31,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:31,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:31,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (1/1) ... [2019-10-13 19:46:31,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:31,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:31,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:31,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:31,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (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 19:46:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-13 19:46:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-13 19:46:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-13 19:46:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-13 19:46:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-13 19:46:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-13 19:46:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-13 19:46:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-13 19:46:32,020 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:46:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-13 19:46:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-13 19:46:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:46:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 19:46:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-13 19:46:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-13 19:46:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-13 19:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-13 19:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:32,943 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:32,943 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:46:32,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:32 BoogieIcfgContainer [2019-10-13 19:46:32,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:32,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:32,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:32,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:32,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:31" (1/3) ... [2019-10-13 19:46:32,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2096a912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:32, skipping insertion in model container [2019-10-13 19:46:32,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31" (2/3) ... [2019-10-13 19:46:32,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2096a912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:32, skipping insertion in model container [2019-10-13 19:46:32,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:32" (3/3) ... [2019-10-13 19:46:32,953 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:32,962 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:32,971 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:32,982 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:33,012 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:33,013 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:33,013 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:33,013 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:33,013 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:33,013 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:33,014 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:33,014 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2019-10-13 19:46:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:46:33,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:33,053 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 19:46:33,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1914592099, now seen corresponding path program 1 times [2019-10-13 19:46:33,073 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:33,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409951332] [2019-10-13 19:46:33,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:33,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:33,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,667 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:34,002 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 19:46:34,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409951332] [2019-10-13 19:46:34,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:34,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:34,004 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866167997] [2019-10-13 19:46:34,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:34,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:34,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:34,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:34,029 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 11 states. [2019-10-13 19:46:34,302 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:36,663 INFO L93 Difference]: Finished difference Result 444 states and 684 transitions. [2019-10-13 19:46:36,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:36,666 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-13 19:46:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:36,689 INFO L225 Difference]: With dead ends: 444 [2019-10-13 19:46:36,689 INFO L226 Difference]: Without dead ends: 229 [2019-10-13 19:46:36,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:46:36,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-13 19:46:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-10-13 19:46:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-10-13 19:46:36,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2019-10-13 19:46:36,794 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 65 [2019-10-13 19:46:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:36,795 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2019-10-13 19:46:36,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2019-10-13 19:46:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:46:36,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:36,800 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 19:46:36,800 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2098614595, now seen corresponding path program 1 times [2019-10-13 19:46:36,801 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:36,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063748705] [2019-10-13 19:46:36,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,101 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:37,312 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 19:46:37,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063748705] [2019-10-13 19:46:37,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:37,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:37,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631653921] [2019-10-13 19:46:37,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:37,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:37,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:37,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:37,318 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 11 states. [2019-10-13 19:46:38,412 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:38,553 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:39,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:39,775 INFO L93 Difference]: Finished difference Result 440 states and 626 transitions. [2019-10-13 19:46:39,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:39,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-13 19:46:39,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:39,780 INFO L225 Difference]: With dead ends: 440 [2019-10-13 19:46:39,780 INFO L226 Difference]: Without dead ends: 233 [2019-10-13 19:46:39,782 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 19:46:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-13 19:46:39,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-10-13 19:46:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-13 19:46:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2019-10-13 19:46:39,824 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 322 transitions. Word has length 76 [2019-10-13 19:46:39,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:39,825 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 322 transitions. [2019-10-13 19:46:39,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 322 transitions. [2019-10-13 19:46:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:46:39,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:39,829 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 19:46:39,829 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:39,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1135646998, now seen corresponding path program 1 times [2019-10-13 19:46:39,830 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:39,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649276126] [2019-10-13 19:46:39,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,088 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,378 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 19:46:40,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649276126] [2019-10-13 19:46:40,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:40,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:40,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454927063] [2019-10-13 19:46:40,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:40,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:40,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:40,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:40,381 INFO L87 Difference]: Start difference. First operand 233 states and 322 transitions. Second operand 16 states. [2019-10-13 19:46:40,592 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:42,619 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:44,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:44,692 INFO L93 Difference]: Finished difference Result 531 states and 736 transitions. [2019-10-13 19:46:44,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:44,693 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-13 19:46:44,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:44,699 INFO L225 Difference]: With dead ends: 531 [2019-10-13 19:46:44,700 INFO L226 Difference]: Without dead ends: 320 [2019-10-13 19:46:44,701 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 19:46:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-13 19:46:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2019-10-13 19:46:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-13 19:46:44,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 434 transitions. [2019-10-13 19:46:44,742 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 434 transitions. Word has length 94 [2019-10-13 19:46:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:44,743 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 434 transitions. [2019-10-13 19:46:44,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 434 transitions. [2019-10-13 19:46:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 19:46:44,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:44,746 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 19:46:44,746 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:44,746 INFO L82 PathProgramCache]: Analyzing trace with hash -376916963, now seen corresponding path program 1 times [2019-10-13 19:46:44,747 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:44,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230957534] [2019-10-13 19:46:44,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:44,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:44,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,961 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,228 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 19:46:45,228 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230957534] [2019-10-13 19:46:45,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:45,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:45,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408535712] [2019-10-13 19:46:45,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:45,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:45,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:45,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:45,231 INFO L87 Difference]: Start difference. First operand 319 states and 434 transitions. Second operand 16 states. [2019-10-13 19:46:45,410 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:47,267 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:49,309 INFO L93 Difference]: Finished difference Result 537 states and 744 transitions. [2019-10-13 19:46:49,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:49,310 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-13 19:46:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:49,314 INFO L225 Difference]: With dead ends: 537 [2019-10-13 19:46:49,314 INFO L226 Difference]: Without dead ends: 323 [2019-10-13 19:46:49,316 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 [2019-10-13 19:46:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-13 19:46:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 319. [2019-10-13 19:46:49,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-13 19:46:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 434 transitions. [2019-10-13 19:46:49,354 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 434 transitions. Word has length 95 [2019-10-13 19:46:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:49,354 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 434 transitions. [2019-10-13 19:46:49,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 434 transitions. [2019-10-13 19:46:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-13 19:46:49,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:49,357 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] [2019-10-13 19:46:49,357 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:49,358 INFO L82 PathProgramCache]: Analyzing trace with hash 121472215, now seen corresponding path program 1 times [2019-10-13 19:46:49,358 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:49,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323907930] [2019-10-13 19:46:49,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:49,359 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:49,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,619 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,847 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 19:46:49,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323907930] [2019-10-13 19:46:49,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:49,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:49,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608564319] [2019-10-13 19:46:49,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:49,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:49,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:49,850 INFO L87 Difference]: Start difference. First operand 319 states and 434 transitions. Second operand 12 states. [2019-10-13 19:46:50,616 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:53,244 INFO L93 Difference]: Finished difference Result 764 states and 1063 transitions. [2019-10-13 19:46:53,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:53,244 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-13 19:46:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:53,250 INFO L225 Difference]: With dead ends: 764 [2019-10-13 19:46:53,250 INFO L226 Difference]: Without dead ends: 550 [2019-10-13 19:46:53,252 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 19:46:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-13 19:46:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 533. [2019-10-13 19:46:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2019-10-13 19:46:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 737 transitions. [2019-10-13 19:46:53,314 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 737 transitions. Word has length 96 [2019-10-13 19:46:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:53,314 INFO L462 AbstractCegarLoop]: Abstraction has 533 states and 737 transitions. [2019-10-13 19:46:53,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 737 transitions. [2019-10-13 19:46:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:53,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:53,317 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 19:46:53,317 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:53,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:53,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1774390923, now seen corresponding path program 1 times [2019-10-13 19:46:53,318 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:53,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732615180] [2019-10-13 19:46:53,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:53,319 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:53,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,537 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,854 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 19:46:53,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732615180] [2019-10-13 19:46:53,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:53,857 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:53,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546916783] [2019-10-13 19:46:53,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:53,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:53,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:53,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:53,860 INFO L87 Difference]: Start difference. First operand 533 states and 737 transitions. Second operand 12 states. [2019-10-13 19:46:54,999 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:57,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:57,627 INFO L93 Difference]: Finished difference Result 1266 states and 1792 transitions. [2019-10-13 19:46:57,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:57,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:46:57,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:57,639 INFO L225 Difference]: With dead ends: 1266 [2019-10-13 19:46:57,639 INFO L226 Difference]: Without dead ends: 881 [2019-10-13 19:46:57,642 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:46:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-10-13 19:46:57,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 875. [2019-10-13 19:46:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2019-10-13 19:46:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1228 transitions. [2019-10-13 19:46:57,802 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1228 transitions. Word has length 97 [2019-10-13 19:46:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:57,805 INFO L462 AbstractCegarLoop]: Abstraction has 875 states and 1228 transitions. [2019-10-13 19:46:57,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1228 transitions. [2019-10-13 19:46:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:57,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:57,809 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 19:46:57,809 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1073326345, now seen corresponding path program 1 times [2019-10-13 19:46:57,810 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:57,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313972096] [2019-10-13 19:46:57,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,811 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,040 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:58,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313972096] [2019-10-13 19:46:58,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:58,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:58,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576286383] [2019-10-13 19:46:58,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:58,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:58,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:58,229 INFO L87 Difference]: Start difference. First operand 875 states and 1228 transitions. Second operand 12 states. [2019-10-13 19:46:59,542 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:00,388 INFO L93 Difference]: Finished difference Result 1475 states and 2083 transitions. [2019-10-13 19:47:00,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:47:00,389 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:47:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:00,393 INFO L225 Difference]: With dead ends: 1475 [2019-10-13 19:47:00,394 INFO L226 Difference]: Without dead ends: 716 [2019-10-13 19:47:00,397 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 [2019-10-13 19:47:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-10-13 19:47:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2019-10-13 19:47:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2019-10-13 19:47:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 996 transitions. [2019-10-13 19:47:00,471 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 996 transitions. Word has length 97 [2019-10-13 19:47:00,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:00,471 INFO L462 AbstractCegarLoop]: Abstraction has 716 states and 996 transitions. [2019-10-13 19:47:00,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:47:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 996 transitions. [2019-10-13 19:47:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:47:00,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:00,474 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 19:47:00,474 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:00,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:00,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1721002108, now seen corresponding path program 1 times [2019-10-13 19:47:00,474 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:00,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232549444] [2019-10-13 19:47:00,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,674 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,891 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 19:47:00,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232549444] [2019-10-13 19:47:00,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:00,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:00,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200670940] [2019-10-13 19:47:00,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:00,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:00,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:00,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:00,893 INFO L87 Difference]: Start difference. First operand 716 states and 996 transitions. Second operand 13 states. [2019-10-13 19:47:02,210 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:02,384 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:03,275 INFO L93 Difference]: Finished difference Result 1296 states and 1829 transitions. [2019-10-13 19:47:03,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:03,276 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-13 19:47:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:03,282 INFO L225 Difference]: With dead ends: 1296 [2019-10-13 19:47:03,282 INFO L226 Difference]: Without dead ends: 731 [2019-10-13 19:47:03,286 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 19:47:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-10-13 19:47:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2019-10-13 19:47:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2019-10-13 19:47:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1008 transitions. [2019-10-13 19:47:03,357 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1008 transitions. Word has length 97 [2019-10-13 19:47:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:03,357 INFO L462 AbstractCegarLoop]: Abstraction has 731 states and 1008 transitions. [2019-10-13 19:47:03,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1008 transitions. [2019-10-13 19:47:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-13 19:47:03,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:03,360 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] [2019-10-13 19:47:03,360 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash 190055260, now seen corresponding path program 1 times [2019-10-13 19:47:03,360 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:03,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942000834] [2019-10-13 19:47:03,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:03,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:03,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,584 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,888 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 19:47:03,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942000834] [2019-10-13 19:47:03,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:03,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:03,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621555495] [2019-10-13 19:47:03,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:03,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:03,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:03,891 INFO L87 Difference]: Start difference. First operand 731 states and 1008 transitions. Second operand 13 states. [2019-10-13 19:47:05,362 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:05,510 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:06,423 INFO L93 Difference]: Finished difference Result 1326 states and 1862 transitions. [2019-10-13 19:47:06,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:06,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2019-10-13 19:47:06,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:06,429 INFO L225 Difference]: With dead ends: 1326 [2019-10-13 19:47:06,430 INFO L226 Difference]: Without dead ends: 746 [2019-10-13 19:47:06,435 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 19:47:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-13 19:47:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2019-10-13 19:47:06,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-13 19:47:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1020 transitions. [2019-10-13 19:47:06,510 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1020 transitions. Word has length 105 [2019-10-13 19:47:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:06,511 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 1020 transitions. [2019-10-13 19:47:06,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1020 transitions. [2019-10-13 19:47:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:47:06,514 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:06,515 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] [2019-10-13 19:47:06,515 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:06,515 INFO L82 PathProgramCache]: Analyzing trace with hash 338939110, now seen corresponding path program 1 times [2019-10-13 19:47:06,516 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:06,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377411972] [2019-10-13 19:47:06,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:06,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:06,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,786 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,015 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 19:47:07,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377411972] [2019-10-13 19:47:07,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:07,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:07,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219627276] [2019-10-13 19:47:07,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:07,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:07,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:07,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:07,018 INFO L87 Difference]: Start difference. First operand 746 states and 1020 transitions. Second operand 13 states.