java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:28,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:28,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:28,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:28,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:28,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:28,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:28,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:28,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:28,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:28,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:28,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:28,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:28,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:28,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:28,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:28,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:28,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:28,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:28,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:28,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:28,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:28,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:28,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:28,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:28,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:28,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:28,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:28,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:28,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:28,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:28,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:28,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:28,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:28,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:28,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:28,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:28,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:28,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:28,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:28,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:28,821 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 19:46:28,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:28,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:28,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:28,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:28,850 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:28,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:28,851 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:28,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:28,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:28,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:28,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:28,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:28,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:28,852 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:28,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:28,852 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:28,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:28,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:28,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:28,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:28,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:28,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:28,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:28,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:28,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:28,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:28,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:28,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:28,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:29,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:29,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:29,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:29,174 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:29,175 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:29,175 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:29,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd48e94e/e73844dd66884488ad46cf83fb2d1e69/FLAG44ec24de7 [2019-10-13 19:46:29,744 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:29,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:29,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd48e94e/e73844dd66884488ad46cf83fb2d1e69/FLAG44ec24de7 [2019-10-13 19:46:30,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd48e94e/e73844dd66884488ad46cf83fb2d1e69 [2019-10-13 19:46:30,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:30,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:30,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:30,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:30,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:30,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57150996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30, skipping insertion in model container [2019-10-13 19:46:30,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,135 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:30,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:30,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:30,598 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:30,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:30,718 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:30,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30 WrapperNode [2019-10-13 19:46:30,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:30,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:30,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:30,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:30,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:30,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:30,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:30,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:30,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (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 19:46:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-13 19:46:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-13 19:46:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-13 19:46:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-13 19:46:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-13 19:46:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-13 19:46:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-13 19:46:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:46:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 19:46:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-13 19:46:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:31,796 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:31,797 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:46:31,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:31 BoogieIcfgContainer [2019-10-13 19:46:31,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:31,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:31,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:31,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:31,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:30" (1/3) ... [2019-10-13 19:46:31,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b60325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:31, skipping insertion in model container [2019-10-13 19:46:31,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30" (2/3) ... [2019-10-13 19:46:31,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b60325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:46:31, skipping insertion in model container [2019-10-13 19:46:31,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:31" (3/3) ... [2019-10-13 19:46:31,807 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-10-13 19:46:31,818 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:31,827 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:31,839 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:31,867 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:31,867 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:31,867 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:31,867 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:31,868 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:31,868 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:31,868 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:31,868 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2019-10-13 19:46:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:46:31,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:31,901 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 19:46:31,904 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:31,910 INFO L82 PathProgramCache]: Analyzing trace with hash -95402615, now seen corresponding path program 1 times [2019-10-13 19:46:31,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:31,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939939885] [2019-10-13 19:46:31,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:31,921 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:31,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,511 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,851 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 19:46:32,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939939885] [2019-10-13 19:46:32,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:32,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:32,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11725386] [2019-10-13 19:46:32,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:32,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:32,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:32,878 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 11 states. [2019-10-13 19:46:33,137 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:35,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:35,659 INFO L93 Difference]: Finished difference Result 448 states and 692 transitions. [2019-10-13 19:46:35,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:35,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-13 19:46:35,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:35,681 INFO L225 Difference]: With dead ends: 448 [2019-10-13 19:46:35,681 INFO L226 Difference]: Without dead ends: 231 [2019-10-13 19:46:35,690 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 19:46:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-10-13 19:46:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2019-10-13 19:46:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-10-13 19:46:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 323 transitions. [2019-10-13 19:46:35,799 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 323 transitions. Word has length 65 [2019-10-13 19:46:35,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:35,799 INFO L462 AbstractCegarLoop]: Abstraction has 231 states and 323 transitions. [2019-10-13 19:46:35,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:35,800 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 323 transitions. [2019-10-13 19:46:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:46:35,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:35,809 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] [2019-10-13 19:46:35,810 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:35,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1971874243, now seen corresponding path program 1 times [2019-10-13 19:46:35,813 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:35,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484224316] [2019-10-13 19:46:35,813 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:35,814 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:35,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,139 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,346 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 19:46:36,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484224316] [2019-10-13 19:46:36,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:36,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:36,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880700664] [2019-10-13 19:46:36,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:36,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:36,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:36,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:36,351 INFO L87 Difference]: Start difference. First operand 231 states and 323 transitions. Second operand 11 states. [2019-10-13 19:46:37,500 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:37,671 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:38,831 INFO L93 Difference]: Finished difference Result 444 states and 634 transitions. [2019-10-13 19:46:38,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:38,832 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-13 19:46:38,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:38,836 INFO L225 Difference]: With dead ends: 444 [2019-10-13 19:46:38,837 INFO L226 Difference]: Without dead ends: 235 [2019-10-13 19:46:38,839 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 19:46:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-10-13 19:46:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2019-10-13 19:46:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-10-13 19:46:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 326 transitions. [2019-10-13 19:46:38,883 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 326 transitions. Word has length 76 [2019-10-13 19:46:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:38,884 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 326 transitions. [2019-10-13 19:46:38,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 326 transitions. [2019-10-13 19:46:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:46:38,886 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:38,886 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 19:46:38,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:38,887 INFO L82 PathProgramCache]: Analyzing trace with hash 350215030, now seen corresponding path program 1 times [2019-10-13 19:46:38,888 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:38,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693317943] [2019-10-13 19:46:38,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:38,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:38,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,153 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,469 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 19:46:39,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693317943] [2019-10-13 19:46:39,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:39,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:39,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067589750] [2019-10-13 19:46:39,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:39,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:39,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:39,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:39,474 INFO L87 Difference]: Start difference. First operand 235 states and 326 transitions. Second operand 16 states. [2019-10-13 19:46:39,744 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:41,830 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:43,750 INFO L93 Difference]: Finished difference Result 535 states and 744 transitions. [2019-10-13 19:46:43,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:43,751 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-13 19:46:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:43,766 INFO L225 Difference]: With dead ends: 535 [2019-10-13 19:46:43,766 INFO L226 Difference]: Without dead ends: 322 [2019-10-13 19:46:43,770 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 19:46:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-10-13 19:46:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2019-10-13 19:46:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-13 19:46:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 438 transitions. [2019-10-13 19:46:43,855 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 438 transitions. Word has length 94 [2019-10-13 19:46:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:43,859 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 438 transitions. [2019-10-13 19:46:43,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 438 transitions. [2019-10-13 19:46:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 19:46:43,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:43,865 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 19:46:43,865 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:43,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:43,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1125111825, now seen corresponding path program 1 times [2019-10-13 19:46:43,866 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:43,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700705620] [2019-10-13 19:46:43,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,100 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,421 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 19:46:44,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700705620] [2019-10-13 19:46:44,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:44,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:44,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224892443] [2019-10-13 19:46:44,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:44,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:44,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:44,426 INFO L87 Difference]: Start difference. First operand 321 states and 438 transitions. Second operand 16 states. [2019-10-13 19:46:44,627 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:46,572 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:48,530 INFO L93 Difference]: Finished difference Result 541 states and 752 transitions. [2019-10-13 19:46:48,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:48,531 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-13 19:46:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:48,534 INFO L225 Difference]: With dead ends: 541 [2019-10-13 19:46:48,535 INFO L226 Difference]: Without dead ends: 325 [2019-10-13 19:46:48,536 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 19:46:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-10-13 19:46:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 321. [2019-10-13 19:46:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-13 19:46:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 438 transitions. [2019-10-13 19:46:48,575 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 438 transitions. Word has length 95 [2019-10-13 19:46:48,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:48,576 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 438 transitions. [2019-10-13 19:46:48,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 438 transitions. [2019-10-13 19:46:48,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:48,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:48,578 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 19:46:48,578 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:48,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:48,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1068609311, now seen corresponding path program 1 times [2019-10-13 19:46:48,579 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:48,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433365313] [2019-10-13 19:46:48,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,808 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,059 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 19:46:49,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433365313] [2019-10-13 19:46:49,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:49,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:49,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113836639] [2019-10-13 19:46:49,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:49,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:49,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:49,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:49,062 INFO L87 Difference]: Start difference. First operand 321 states and 438 transitions. Second operand 12 states. [2019-10-13 19:46:49,833 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:52,655 INFO L93 Difference]: Finished difference Result 770 states and 1075 transitions. [2019-10-13 19:46:52,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:52,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:46:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:52,661 INFO L225 Difference]: With dead ends: 770 [2019-10-13 19:46:52,661 INFO L226 Difference]: Without dead ends: 554 [2019-10-13 19:46:52,662 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 19:46:52,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-10-13 19:46:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 537. [2019-10-13 19:46:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-13 19:46:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 745 transitions. [2019-10-13 19:46:52,752 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 745 transitions. Word has length 97 [2019-10-13 19:46:52,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:52,753 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 745 transitions. [2019-10-13 19:46:52,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 745 transitions. [2019-10-13 19:46:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:52,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:52,755 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 19:46:52,755 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash -2002189277, now seen corresponding path program 1 times [2019-10-13 19:46:52,756 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:52,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563970109] [2019-10-13 19:46:52,756 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,756 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,977 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,196 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 19:46:53,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563970109] [2019-10-13 19:46:53,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:53,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:53,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512677289] [2019-10-13 19:46:53,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:53,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:53,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:53,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:53,202 INFO L87 Difference]: Start difference. First operand 537 states and 745 transitions. Second operand 12 states. [2019-10-13 19:46:53,585 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-13 19:46:54,814 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:55,620 INFO L93 Difference]: Finished difference Result 927 states and 1308 transitions. [2019-10-13 19:46:55,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:55,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:46:55,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:55,628 INFO L225 Difference]: With dead ends: 927 [2019-10-13 19:46:55,629 INFO L226 Difference]: Without dead ends: 537 [2019-10-13 19:46:55,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:46:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-13 19:46:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-10-13 19:46:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-13 19:46:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 744 transitions. [2019-10-13 19:46:55,721 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 744 transitions. Word has length 98 [2019-10-13 19:46:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:55,722 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 744 transitions. [2019-10-13 19:46:55,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 744 transitions. [2019-10-13 19:46:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:55,725 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:55,725 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 19:46:55,725 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:55,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1591713441, now seen corresponding path program 1 times [2019-10-13 19:46:55,726 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:55,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859278722] [2019-10-13 19:46:55,727 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:55,727 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:55,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,909 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:56,114 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 19:46:56,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859278722] [2019-10-13 19:46:56,114 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:56,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:56,115 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072306867] [2019-10-13 19:46:56,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:56,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:56,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:56,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:56,116 INFO L87 Difference]: Start difference. First operand 537 states and 744 transitions. Second operand 12 states. [2019-10-13 19:46:57,247 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:59,729 INFO L93 Difference]: Finished difference Result 1168 states and 1640 transitions. [2019-10-13 19:46:59,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:59,729 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:46:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:59,735 INFO L225 Difference]: With dead ends: 1168 [2019-10-13 19:46:59,735 INFO L226 Difference]: Without dead ends: 728 [2019-10-13 19:46:59,737 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:46:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-10-13 19:46:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 722. [2019-10-13 19:46:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2019-10-13 19:46:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1008 transitions. [2019-10-13 19:46:59,808 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1008 transitions. Word has length 98 [2019-10-13 19:46:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:59,809 INFO L462 AbstractCegarLoop]: Abstraction has 722 states and 1008 transitions. [2019-10-13 19:46:59,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1008 transitions. [2019-10-13 19:46:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:59,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:59,811 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 19:46:59,811 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:59,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:59,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1901314178, now seen corresponding path program 1 times [2019-10-13 19:46:59,812 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:59,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290436947] [2019-10-13 19:46:59,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:59,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:59,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,017 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,274 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 19:47:00,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290436947] [2019-10-13 19:47:00,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:00,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:00,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483971710] [2019-10-13 19:47:00,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:00,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:00,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:00,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:00,276 INFO L87 Difference]: Start difference. First operand 722 states and 1008 transitions. Second operand 13 states. [2019-10-13 19:47:01,777 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:01,920 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:02,864 INFO L93 Difference]: Finished difference Result 1308 states and 1853 transitions. [2019-10-13 19:47:02,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:02,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2019-10-13 19:47:02,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:02,870 INFO L225 Difference]: With dead ends: 1308 [2019-10-13 19:47:02,870 INFO L226 Difference]: Without dead ends: 737 [2019-10-13 19:47:02,873 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:47:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-10-13 19:47:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2019-10-13 19:47:02,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2019-10-13 19:47:02,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1020 transitions. [2019-10-13 19:47:02,946 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1020 transitions. Word has length 98 [2019-10-13 19:47:02,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:02,946 INFO L462 AbstractCegarLoop]: Abstraction has 737 states and 1020 transitions. [2019-10-13 19:47:02,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1020 transitions. [2019-10-13 19:47:02,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 19:47:02,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:02,949 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 19:47:02,949 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:02,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:02,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1229557918, now seen corresponding path program 1 times [2019-10-13 19:47:02,950 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:02,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619512284] [2019-10-13 19:47:02,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:02,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:02,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,182 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:03,451 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 19:47:03,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619512284] [2019-10-13 19:47:03,452 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:03,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:03,453 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105486984] [2019-10-13 19:47:03,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:03,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:03,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:03,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:03,454 INFO L87 Difference]: Start difference. First operand 737 states and 1020 transitions. Second operand 13 states. [2019-10-13 19:47:05,072 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:05,222 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:06,067 INFO L93 Difference]: Finished difference Result 1338 states and 1886 transitions. [2019-10-13 19:47:06,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:06,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2019-10-13 19:47:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:06,074 INFO L225 Difference]: With dead ends: 1338 [2019-10-13 19:47:06,074 INFO L226 Difference]: Without dead ends: 752 [2019-10-13 19:47:06,077 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 19:47:06,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2019-10-13 19:47:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2019-10-13 19:47:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2019-10-13 19:47:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1032 transitions. [2019-10-13 19:47:06,140 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1032 transitions. Word has length 106 [2019-10-13 19:47:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:06,141 INFO L462 AbstractCegarLoop]: Abstraction has 752 states and 1032 transitions. [2019-10-13 19:47:06,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1032 transitions. [2019-10-13 19:47:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 19:47:06,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:06,143 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 19:47:06,144 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:06,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:06,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1709526252, now seen corresponding path program 1 times [2019-10-13 19:47:06,144 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:06,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506624181] [2019-10-13 19:47:06,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:06,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:06,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,341 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:06,652 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 19:47:06,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506624181] [2019-10-13 19:47:06,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:06,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:06,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285404025] [2019-10-13 19:47:06,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:06,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:06,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:06,655 INFO L87 Difference]: Start difference. First operand 752 states and 1032 transitions. Second operand 13 states.