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.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:29,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:29,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:29,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:29,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:29,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:29,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:29,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:29,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:29,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:29,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:29,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:29,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:29,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:29,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:29,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:29,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:29,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:29,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:29,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:29,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:29,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:29,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:29,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:29,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:29,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:29,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:29,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:29,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:29,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:29,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:29,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:29,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:29,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:29,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:29,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:29,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:29,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:29,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:29,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:29,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:29,440 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 19:46:29,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:29,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:29,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:29,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:29,456 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:29,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:29,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:29,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:29,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:29,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:29,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:29,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:29,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:29,458 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:29,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:29,458 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:29,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:29,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:29,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:29,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:29,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:29,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:29,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:29,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:29,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:29,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:29,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:29,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:29,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:29,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:29,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:29,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:29,747 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:29,748 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:29,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:29,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956583316/15154cd812954128a8362f4871bae835/FLAGeb60b0dc2 [2019-10-13 19:46:30,399 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:30,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:30,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956583316/15154cd812954128a8362f4871bae835/FLAGeb60b0dc2 [2019-10-13 19:46:30,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956583316/15154cd812954128a8362f4871bae835 [2019-10-13 19:46:30,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:30,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:30,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:30,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:30,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:30,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da11249 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 19:46:30,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:30" (1/1) ... [2019-10-13 19:46:30,725 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:30,776 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:31,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:31,219 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:31,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:31,314 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:31,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:31 WrapperNode [2019-10-13 19:46:31,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:31,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:31,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:31,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:31,328 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 19:46:31,328 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 19:46:31,341 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 19:46:31,341 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 19:46:31,360 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 19:46:31,374 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 19:46:31,378 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 19:46:31,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:31,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:31,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:31,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:31,386 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 19:46:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-13 19:46:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-13 19:46:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-13 19:46:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-13 19:46:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-13 19:46:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-13 19:46:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-13 19:46:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-13 19:46:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:46:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-13 19:46:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-13 19:46:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:46:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 19:46:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-13 19:46:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:32,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:32,374 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:46:32,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:32 BoogieIcfgContainer [2019-10-13 19:46:32,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:32,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:32,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:32,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:30" (1/3) ... [2019-10-13 19:46:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c723533 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 19:46:32,389 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 19:46:32,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c723533 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 19:46:32,390 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 19:46:32,392 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:32,402 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:32,410 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:32,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:32,444 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:32,445 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:32,445 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:32,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:32,446 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:32,447 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:32,447 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:32,448 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states. [2019-10-13 19:46:32,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:46:32,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:32,490 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 19:46:32,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:32,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:32,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1497229254, now seen corresponding path program 1 times [2019-10-13 19:46:32,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:32,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422099481] [2019-10-13 19:46:32,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:32,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:32,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,097 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:33,422 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 19:46:33,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422099481] [2019-10-13 19:46:33,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:33,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:33,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2702066] [2019-10-13 19:46:33,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:33,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:33,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:33,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:33,450 INFO L87 Difference]: Start difference. First operand 235 states. Second operand 11 states. [2019-10-13 19:46:33,746 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:36,137 INFO L93 Difference]: Finished difference Result 451 states and 690 transitions. [2019-10-13 19:46:36,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:36,139 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-13 19:46:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:36,165 INFO L225 Difference]: With dead ends: 451 [2019-10-13 19:46:36,166 INFO L226 Difference]: Without dead ends: 230 [2019-10-13 19:46:36,181 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 19:46:36,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-13 19:46:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2019-10-13 19:46:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-10-13 19:46:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 320 transitions. [2019-10-13 19:46:36,287 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 320 transitions. Word has length 65 [2019-10-13 19:46:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:36,287 INFO L462 AbstractCegarLoop]: Abstraction has 230 states and 320 transitions. [2019-10-13 19:46:36,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 320 transitions. [2019-10-13 19:46:36,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:46:36,292 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:36,292 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 19:46:36,292 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:36,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:36,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1347913347, now seen corresponding path program 1 times [2019-10-13 19:46:36,293 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:36,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316793934] [2019-10-13 19:46:36,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:36,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,627 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:36,870 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 19:46:36,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316793934] [2019-10-13 19:46:36,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:36,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:36,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150564936] [2019-10-13 19:46:36,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:36,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:36,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:36,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:36,875 INFO L87 Difference]: Start difference. First operand 230 states and 320 transitions. Second operand 11 states. [2019-10-13 19:46:38,109 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:38,266 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:39,528 INFO L93 Difference]: Finished difference Result 442 states and 628 transitions. [2019-10-13 19:46:39,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:39,528 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-13 19:46:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:39,531 INFO L225 Difference]: With dead ends: 442 [2019-10-13 19:46:39,531 INFO L226 Difference]: Without dead ends: 234 [2019-10-13 19:46:39,533 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:46:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-10-13 19:46:39,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2019-10-13 19:46:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-10-13 19:46:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 323 transitions. [2019-10-13 19:46:39,604 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 323 transitions. Word has length 76 [2019-10-13 19:46:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:39,605 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 323 transitions. [2019-10-13 19:46:39,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 323 transitions. [2019-10-13 19:46:39,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:46:39,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:39,618 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 19:46:39,619 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:39,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:39,619 INFO L82 PathProgramCache]: Analyzing trace with hash 607799179, now seen corresponding path program 1 times [2019-10-13 19:46:39,619 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:39,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574069699] [2019-10-13 19:46:39,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:39,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,868 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:40,196 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 19:46:40,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574069699] [2019-10-13 19:46:40,197 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:40,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:40,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624753490] [2019-10-13 19:46:40,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:40,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:40,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:40,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:40,200 INFO L87 Difference]: Start difference. First operand 234 states and 323 transitions. Second operand 16 states. [2019-10-13 19:46:40,414 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:42,553 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:44,616 INFO L93 Difference]: Finished difference Result 533 states and 738 transitions. [2019-10-13 19:46:44,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:44,617 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-13 19:46:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:44,623 INFO L225 Difference]: With dead ends: 533 [2019-10-13 19:46:44,624 INFO L226 Difference]: Without dead ends: 321 [2019-10-13 19:46:44,626 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 19:46:44,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-13 19:46:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2019-10-13 19:46:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-10-13 19:46:44,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2019-10-13 19:46:44,700 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 435 transitions. Word has length 94 [2019-10-13 19:46:44,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:44,701 INFO L462 AbstractCegarLoop]: Abstraction has 320 states and 435 transitions. [2019-10-13 19:46:44,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:44,701 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 435 transitions. [2019-10-13 19:46:44,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 19:46:44,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:44,705 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 19:46:44,705 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:44,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1371679745, now seen corresponding path program 1 times [2019-10-13 19:46:44,706 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:44,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253728793] [2019-10-13 19:46:44,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:44,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:44,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,943 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:45,268 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 19:46:45,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253728793] [2019-10-13 19:46:45,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:45,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:45,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633405846] [2019-10-13 19:46:45,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:45,273 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:45,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:45,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:45,276 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. Second operand 16 states. [2019-10-13 19:46:45,519 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:47,472 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:49,457 INFO L93 Difference]: Finished difference Result 539 states and 746 transitions. [2019-10-13 19:46:49,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:49,458 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-13 19:46:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:49,461 INFO L225 Difference]: With dead ends: 539 [2019-10-13 19:46:49,461 INFO L226 Difference]: Without dead ends: 324 [2019-10-13 19:46:49,463 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 19:46:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-13 19:46:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 320. [2019-10-13 19:46:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-10-13 19:46:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2019-10-13 19:46:49,494 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 435 transitions. Word has length 95 [2019-10-13 19:46:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:49,495 INFO L462 AbstractCegarLoop]: Abstraction has 320 states and 435 transitions. [2019-10-13 19:46:49,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 435 transitions. [2019-10-13 19:46:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-13 19:46:49,497 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:49,497 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 19:46:49,497 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:49,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:49,498 INFO L82 PathProgramCache]: Analyzing trace with hash 141577624, now seen corresponding path program 1 times [2019-10-13 19:46:49,498 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:49,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492741186] [2019-10-13 19:46:49,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:49,498 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:49,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,705 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:49,942 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 19:46:49,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492741186] [2019-10-13 19:46:49,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:49,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:49,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197400611] [2019-10-13 19:46:49,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:49,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:49,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:49,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:49,944 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. Second operand 12 states. [2019-10-13 19:46:50,660 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:51,413 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-10-13 19:46:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:53,413 INFO L93 Difference]: Finished difference Result 767 states and 1066 transitions. [2019-10-13 19:46:53,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:53,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-13 19:46:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:53,418 INFO L225 Difference]: With dead ends: 767 [2019-10-13 19:46:53,419 INFO L226 Difference]: Without dead ends: 552 [2019-10-13 19:46:53,420 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 19:46:53,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2019-10-13 19:46:53,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 534. [2019-10-13 19:46:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2019-10-13 19:46:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 738 transitions. [2019-10-13 19:46:53,485 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 738 transitions. Word has length 96 [2019-10-13 19:46:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:53,485 INFO L462 AbstractCegarLoop]: Abstraction has 534 states and 738 transitions. [2019-10-13 19:46:53,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 738 transitions. [2019-10-13 19:46:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:53,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:53,487 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 19:46:53,488 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:53,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1335466069, now seen corresponding path program 1 times [2019-10-13 19:46:53,488 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:53,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101447492] [2019-10-13 19:46:53,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:53,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:53,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,682 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,756 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 19:46:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:53,939 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 19:46:53,940 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101447492] [2019-10-13 19:46:53,943 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:53,943 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:53,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421946326] [2019-10-13 19:46:53,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:53,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:53,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:53,946 INFO L87 Difference]: Start difference. First operand 534 states and 738 transitions. Second operand 12 states. [2019-10-13 19:46:55,061 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:57,460 INFO L93 Difference]: Finished difference Result 1269 states and 1795 transitions. [2019-10-13 19:46:57,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:57,461 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:46:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:57,470 INFO L225 Difference]: With dead ends: 1269 [2019-10-13 19:46:57,470 INFO L226 Difference]: Without dead ends: 883 [2019-10-13 19:46:57,474 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 19:46:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-10-13 19:46:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 877. [2019-10-13 19:46:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-10-13 19:46:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1230 transitions. [2019-10-13 19:46:57,600 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1230 transitions. Word has length 97 [2019-10-13 19:46:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:57,602 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1230 transitions. [2019-10-13 19:46:57,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1230 transitions. [2019-10-13 19:46:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:57,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:57,604 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 19:46:57,604 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:57,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:57,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2036530647, now seen corresponding path program 1 times [2019-10-13 19:46:57,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:57,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213184982] [2019-10-13 19:46:57,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:57,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,799 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:58,040 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 19:46:58,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213184982] [2019-10-13 19:46:58,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:58,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:58,041 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594207481] [2019-10-13 19:46:58,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:58,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:58,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:58,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:58,042 INFO L87 Difference]: Start difference. First operand 877 states and 1230 transitions. Second operand 12 states. [2019-10-13 19:46:58,377 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-10-13 19:46:59,576 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:00,410 INFO L93 Difference]: Finished difference Result 1479 states and 2087 transitions. [2019-10-13 19:47:00,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:47:00,411 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:47:00,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:00,416 INFO L225 Difference]: With dead ends: 1479 [2019-10-13 19:47:00,417 INFO L226 Difference]: Without dead ends: 718 [2019-10-13 19:47:00,421 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 19:47:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2019-10-13 19:47:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2019-10-13 19:47:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2019-10-13 19:47:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 998 transitions. [2019-10-13 19:47:00,509 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 998 transitions. Word has length 97 [2019-10-13 19:47:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:00,510 INFO L462 AbstractCegarLoop]: Abstraction has 718 states and 998 transitions. [2019-10-13 19:47:00,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:47:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 998 transitions. [2019-10-13 19:47:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:47:00,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:00,512 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 19:47:00,513 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:00,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2127297953, now seen corresponding path program 1 times [2019-10-13 19:47:00,514 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:00,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277101898] [2019-10-13 19:47:00,514 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,515 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:00,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,781 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:01,078 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 19:47:01,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277101898] [2019-10-13 19:47:01,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:01,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:01,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968237352] [2019-10-13 19:47:01,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:01,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:01,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:01,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:01,081 INFO L87 Difference]: Start difference. First operand 718 states and 998 transitions. Second operand 13 states. [2019-10-13 19:47:02,646 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:02,817 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:03,809 INFO L93 Difference]: Finished difference Result 1300 states and 1833 transitions. [2019-10-13 19:47:03,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:03,810 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-13 19:47:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:03,816 INFO L225 Difference]: With dead ends: 1300 [2019-10-13 19:47:03,816 INFO L226 Difference]: Without dead ends: 733 [2019-10-13 19:47:03,819 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:47:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-13 19:47:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2019-10-13 19:47:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2019-10-13 19:47:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1010 transitions. [2019-10-13 19:47:03,893 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1010 transitions. Word has length 97 [2019-10-13 19:47:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:03,893 INFO L462 AbstractCegarLoop]: Abstraction has 733 states and 1010 transitions. [2019-10-13 19:47:03,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1010 transitions. [2019-10-13 19:47:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-13 19:47:03,895 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:03,895 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 19:47:03,896 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:03,896 INFO L82 PathProgramCache]: Analyzing trace with hash 344185535, now seen corresponding path program 1 times [2019-10-13 19:47:03,896 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:03,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990100881] [2019-10-13 19:47:03,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:03,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:03,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,102 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:47:04,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990100881] [2019-10-13 19:47:04,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:04,362 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:04,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251295342] [2019-10-13 19:47:04,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:04,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:04,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:04,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:04,365 INFO L87 Difference]: Start difference. First operand 733 states and 1010 transitions. Second operand 13 states. [2019-10-13 19:47:05,877 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:06,036 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:06,996 INFO L93 Difference]: Finished difference Result 1330 states and 1866 transitions. [2019-10-13 19:47:06,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:06,996 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2019-10-13 19:47:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:07,002 INFO L225 Difference]: With dead ends: 1330 [2019-10-13 19:47:07,003 INFO L226 Difference]: Without dead ends: 748 [2019-10-13 19:47:07,006 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 19:47:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2019-10-13 19:47:07,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2019-10-13 19:47:07,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2019-10-13 19:47:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1022 transitions. [2019-10-13 19:47:07,079 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1022 transitions. Word has length 105 [2019-10-13 19:47:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:07,079 INFO L462 AbstractCegarLoop]: Abstraction has 748 states and 1022 transitions. [2019-10-13 19:47:07,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1022 transitions. [2019-10-13 19:47:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:47:07,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:07,082 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 19:47:07,082 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:07,083 INFO L82 PathProgramCache]: Analyzing trace with hash -325164599, now seen corresponding path program 1 times [2019-10-13 19:47:07,083 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:07,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275453575] [2019-10-13 19:47:07,083 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:07,084 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:07,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,293 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:07,587 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 19:47:07,588 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275453575] [2019-10-13 19:47:07,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:07,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:07,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605522373] [2019-10-13 19:47:07,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:07,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:07,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:07,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:07,591 INFO L87 Difference]: Start difference. First operand 748 states and 1022 transitions. Second operand 13 states.