java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:46:28,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:46:28,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:46:28,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:46:28,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:46:28,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:46:28,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:46:28,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:46:28,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:46:28,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:46:28,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:46:28,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:46:28,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:46:28,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:46:28,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:46:28,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:46:28,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:46:28,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:46:28,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:46:28,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:46:28,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:46:28,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:46:28,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:46:28,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:46:28,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:46:28,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:46:28,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:46:28,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:46:28,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:46:28,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:46:28,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:46:28,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:46:28,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:46:28,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:46:28,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:46:28,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:46:28,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:46:28,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:46:28,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:46:28,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:46:28,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:46:28,600 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 19:46:28,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:46:28,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:46:28,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:46:28,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:46:28,616 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:46:28,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:46:28,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:46:28,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:46:28,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:46:28,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:46:28,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:46:28,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:46:28,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:46:28,618 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:46:28,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:46:28,618 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:46:28,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:46:28,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:46:28,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:46:28,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:46:28,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:46:28,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:46:28,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:46:28,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:46:28,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:46:28,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:46:28,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:46:28,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:46:28,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:46:28,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:46:28,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:46:28,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:46:28,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:46:28,960 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:46:28,961 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:29,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aaf5518/5a91c52f0a8e44e1b6a7e88fbca95004/FLAG23c1ed3eb [2019-10-13 19:46:29,600 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:46:29,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:29,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aaf5518/5a91c52f0a8e44e1b6a7e88fbca95004/FLAG23c1ed3eb [2019-10-13 19:46:29,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1aaf5518/5a91c52f0a8e44e1b6a7e88fbca95004 [2019-10-13 19:46:29,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:46:29,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:46:29,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:29,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:46:29,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:46:29,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:29" (1/1) ... [2019-10-13 19:46:29,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbc4866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:29, skipping insertion in model container [2019-10-13 19:46:29,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:46:29" (1/1) ... [2019-10-13 19:46:29,930 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:46:29,991 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:46:30,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:30,383 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:46:30,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:46:30,503 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:46:30,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:46:30 WrapperNode [2019-10-13 19:46:30,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:46:30,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:46:30,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:46:30,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:46:30,514 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 19:46:30,514 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 19:46:30,526 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 19:46:30,528 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 19:46:30,552 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 19:46:30,564 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 19:46:30,568 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 19:46:30,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:46:30,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:46:30,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:46:30,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:46:30,575 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 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-13 19:46:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-13 19:46:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-13 19:46:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-13 19:46:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-13 19:46:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 19:46:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-13 19:46:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:46:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 19:46:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:46:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:46:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:46:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:46:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-13 19:46:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:46:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:46:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:46:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:46:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:46:31,505 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:46:31,505 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:46:31,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:46:31 BoogieIcfgContainer [2019-10-13 19:46:31,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:46:31,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:46:31,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:46:31,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:46:31,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:46:29" (1/3) ... [2019-10-13 19:46:31,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a3bb7a 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 19:46:31,513 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 19:46:31,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a3bb7a 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 19:46:31,513 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 19:46:31,515 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2019-10-13 19:46:31,526 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:46:31,536 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:46:31,548 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:46:31,579 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:46:31,579 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:46:31,579 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:46:31,580 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:46:31,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:46:31,580 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:46:31,580 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:46:31,581 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:46:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2019-10-13 19:46:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:46:31,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:31,619 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 19:46:31,621 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash -512765460, now seen corresponding path program 1 times [2019-10-13 19:46:31,633 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:31,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997053758] [2019-10-13 19:46:31,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:31,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:31,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,192 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:32,540 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 19:46:32,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997053758] [2019-10-13 19:46:32,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:32,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:32,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165604257] [2019-10-13 19:46:32,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:32,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:32,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:32,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:32,568 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 11 states. [2019-10-13 19:46:32,866 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:35,310 INFO L93 Difference]: Finished difference Result 455 states and 698 transitions. [2019-10-13 19:46:35,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:35,313 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-13 19:46:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:35,335 INFO L225 Difference]: With dead ends: 455 [2019-10-13 19:46:35,335 INFO L226 Difference]: Without dead ends: 232 [2019-10-13 19:46:35,344 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 19:46:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-13 19:46:35,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2019-10-13 19:46:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-13 19:46:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 324 transitions. [2019-10-13 19:46:35,427 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 324 transitions. Word has length 65 [2019-10-13 19:46:35,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:35,427 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 324 transitions. [2019-10-13 19:46:35,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 324 transitions. [2019-10-13 19:46:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 19:46:35,432 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:35,432 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 19:46:35,432 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:35,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:35,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1221172995, now seen corresponding path program 1 times [2019-10-13 19:46:35,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:35,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069501504] [2019-10-13 19:46:35,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:35,434 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:35,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,732 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:35,965 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 19:46:35,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069501504] [2019-10-13 19:46:35,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:35,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:46:35,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100787118] [2019-10-13 19:46:35,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:46:35,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:35,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:46:35,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:46:35,981 INFO L87 Difference]: Start difference. First operand 232 states and 324 transitions. Second operand 11 states. [2019-10-13 19:46:37,005 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:37,175 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:38,501 INFO L93 Difference]: Finished difference Result 446 states and 636 transitions. [2019-10-13 19:46:38,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:38,503 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-13 19:46:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:38,508 INFO L225 Difference]: With dead ends: 446 [2019-10-13 19:46:38,508 INFO L226 Difference]: Without dead ends: 236 [2019-10-13 19:46:38,510 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 19:46:38,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-10-13 19:46:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-10-13 19:46:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-10-13 19:46:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2019-10-13 19:46:38,546 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 76 [2019-10-13 19:46:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:38,547 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2019-10-13 19:46:38,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:46:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2019-10-13 19:46:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:46:38,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:38,550 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 19:46:38,551 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2093661207, now seen corresponding path program 1 times [2019-10-13 19:46:38,551 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:38,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243130905] [2019-10-13 19:46:38,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:38,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:38,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,791 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:39,109 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 19:46:39,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243130905] [2019-10-13 19:46:39,110 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:39,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:39,111 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589138715] [2019-10-13 19:46:39,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:39,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:39,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:39,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:39,114 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand 16 states. [2019-10-13 19:46:39,296 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:41,428 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:43,535 INFO L93 Difference]: Finished difference Result 537 states and 746 transitions. [2019-10-13 19:46:43,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:43,536 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-13 19:46:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:43,546 INFO L225 Difference]: With dead ends: 537 [2019-10-13 19:46:43,546 INFO L226 Difference]: Without dead ends: 323 [2019-10-13 19:46:43,548 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 19:46:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-13 19:46:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2019-10-13 19:46:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-13 19:46:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-13 19:46:43,612 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 94 [2019-10-13 19:46:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:43,613 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-13 19:46:43,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-13 19:46:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 19:46:43,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:43,616 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 19:46:43,616 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:43,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash 130349043, now seen corresponding path program 1 times [2019-10-13 19:46:43,617 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:43,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297962237] [2019-10-13 19:46:43,617 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,617 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:43,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,815 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:44,184 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 19:46:44,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297962237] [2019-10-13 19:46:44,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:44,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 19:46:44,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528673672] [2019-10-13 19:46:44,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:46:44,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:44,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:46:44,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:46:44,189 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 16 states. [2019-10-13 19:46:44,365 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-13 19:46:45,706 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-13 19:46:46,391 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-13 19:46:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:48,420 INFO L93 Difference]: Finished difference Result 543 states and 754 transitions. [2019-10-13 19:46:48,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:46:48,421 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-13 19:46:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:48,425 INFO L225 Difference]: With dead ends: 543 [2019-10-13 19:46:48,425 INFO L226 Difference]: Without dead ends: 326 [2019-10-13 19:46:48,427 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 19:46:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-13 19:46:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2019-10-13 19:46:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-10-13 19:46:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 439 transitions. [2019-10-13 19:46:48,464 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 439 transitions. Word has length 95 [2019-10-13 19:46:48,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:48,465 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 439 transitions. [2019-10-13 19:46:48,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:46:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 439 transitions. [2019-10-13 19:46:48,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:46:48,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:48,467 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 19:46:48,468 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:48,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:48,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1810109727, now seen corresponding path program 1 times [2019-10-13 19:46:48,469 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:48,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310114606] [2019-10-13 19:46:48,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:48,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,659 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:46:48,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310114606] [2019-10-13 19:46:48,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:48,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:48,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894648141] [2019-10-13 19:46:48,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:48,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:48,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:48,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:48,893 INFO L87 Difference]: Start difference. First operand 322 states and 439 transitions. Second operand 12 states. [2019-10-13 19:46:49,645 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:52,391 INFO L93 Difference]: Finished difference Result 773 states and 1078 transitions. [2019-10-13 19:46:52,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:52,392 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:46:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:52,398 INFO L225 Difference]: With dead ends: 773 [2019-10-13 19:46:52,398 INFO L226 Difference]: Without dead ends: 556 [2019-10-13 19:46:52,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:46:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-13 19:46:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 538. [2019-10-13 19:46:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:46:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 746 transitions. [2019-10-13 19:46:52,462 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 746 transitions. Word has length 97 [2019-10-13 19:46:52,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:52,463 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 746 transitions. [2019-10-13 19:46:52,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 746 transitions. [2019-10-13 19:46:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:52,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:52,465 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 19:46:52,465 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:52,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:52,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1438423074, now seen corresponding path program 1 times [2019-10-13 19:46:52,466 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:52,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997841905] [2019-10-13 19:46:52,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:52,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,661 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:52,911 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 19:46:52,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997841905] [2019-10-13 19:46:52,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:52,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:52,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55358188] [2019-10-13 19:46:52,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:52,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:52,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:52,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:52,916 INFO L87 Difference]: Start difference. First operand 538 states and 746 transitions. Second operand 12 states. [2019-10-13 19:46:54,234 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:46:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:55,092 INFO L93 Difference]: Finished difference Result 929 states and 1310 transitions. [2019-10-13 19:46:55,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:46:55,093 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:46:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:55,101 INFO L225 Difference]: With dead ends: 929 [2019-10-13 19:46:55,102 INFO L226 Difference]: Without dead ends: 538 [2019-10-13 19:46:55,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:46:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-13 19:46:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-10-13 19:46:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:46:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 745 transitions. [2019-10-13 19:46:55,214 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 745 transitions. Word has length 98 [2019-10-13 19:46:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:55,216 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 745 transitions. [2019-10-13 19:46:55,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 745 transitions. [2019-10-13 19:46:55,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:55,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:55,218 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 19:46:55,218 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:55,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:55,218 INFO L82 PathProgramCache]: Analyzing trace with hash 737358496, now seen corresponding path program 1 times [2019-10-13 19:46:55,218 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:55,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105745618] [2019-10-13 19:46:55,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:55,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:55,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,388 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:55,602 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 19:46:55,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105745618] [2019-10-13 19:46:55,603 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:55,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:46:55,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364299758] [2019-10-13 19:46:55,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:46:55,604 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:55,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:46:55,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:46:55,604 INFO L87 Difference]: Start difference. First operand 538 states and 745 transitions. Second operand 12 states. [2019-10-13 19:46:56,653 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:46:59,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:46:59,241 INFO L93 Difference]: Finished difference Result 1171 states and 1643 transitions. [2019-10-13 19:46:59,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 19:46:59,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2019-10-13 19:46:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:46:59,247 INFO L225 Difference]: With dead ends: 1171 [2019-10-13 19:46:59,248 INFO L226 Difference]: Without dead ends: 730 [2019-10-13 19:46:59,250 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 19:46:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-10-13 19:46:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 724. [2019-10-13 19:46:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2019-10-13 19:46:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1010 transitions. [2019-10-13 19:46:59,349 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1010 transitions. Word has length 98 [2019-10-13 19:46:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:46:59,349 INFO L462 AbstractCegarLoop]: Abstraction has 724 states and 1010 transitions. [2019-10-13 19:46:59,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:46:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1010 transitions. [2019-10-13 19:46:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 19:46:59,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:46:59,351 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 19:46:59,352 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:46:59,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:46:59,352 INFO L82 PathProgramCache]: Analyzing trace with hash -638890142, now seen corresponding path program 1 times [2019-10-13 19:46:59,352 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:46:59,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656936112] [2019-10-13 19:46:59,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:59,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:46:59,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:46:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,552 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:46:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:46:59,769 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 19:46:59,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656936112] [2019-10-13 19:46:59,770 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:46:59,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:46:59,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113450161] [2019-10-13 19:46:59,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:46:59,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:46:59,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:46:59,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:46:59,772 INFO L87 Difference]: Start difference. First operand 724 states and 1010 transitions. Second operand 13 states. [2019-10-13 19:47:01,189 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:01,335 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:02,289 INFO L93 Difference]: Finished difference Result 1312 states and 1857 transitions. [2019-10-13 19:47:02,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:02,290 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2019-10-13 19:47:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:02,296 INFO L225 Difference]: With dead ends: 1312 [2019-10-13 19:47:02,296 INFO L226 Difference]: Without dead ends: 739 [2019-10-13 19:47:02,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:47:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-13 19:47:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2019-10-13 19:47:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2019-10-13 19:47:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1022 transitions. [2019-10-13 19:47:02,369 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1022 transitions. Word has length 98 [2019-10-13 19:47:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:02,370 INFO L462 AbstractCegarLoop]: Abstraction has 739 states and 1022 transitions. [2019-10-13 19:47:02,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1022 transitions. [2019-10-13 19:47:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 19:47:02,372 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:02,372 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 19:47:02,372 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:02,373 INFO L82 PathProgramCache]: Analyzing trace with hash -397676862, now seen corresponding path program 1 times [2019-10-13 19:47:02,373 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:02,373 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215677463] [2019-10-13 19:47:02,373 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:02,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:02,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,598 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:02,810 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 19:47:02,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215677463] [2019-10-13 19:47:02,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:02,811 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:02,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17432825] [2019-10-13 19:47:02,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:02,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:02,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:02,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:02,813 INFO L87 Difference]: Start difference. First operand 739 states and 1022 transitions. Second operand 13 states. [2019-10-13 19:47:04,368 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:04,525 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-13 19:47:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:47:05,435 INFO L93 Difference]: Finished difference Result 1342 states and 1890 transitions. [2019-10-13 19:47:05,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:47:05,436 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 106 [2019-10-13 19:47:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:47:05,443 INFO L225 Difference]: With dead ends: 1342 [2019-10-13 19:47:05,443 INFO L226 Difference]: Without dead ends: 754 [2019-10-13 19:47:05,446 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 19:47:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-13 19:47:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2019-10-13 19:47:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2019-10-13 19:47:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1034 transitions. [2019-10-13 19:47:05,513 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1034 transitions. Word has length 106 [2019-10-13 19:47:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:47:05,514 INFO L462 AbstractCegarLoop]: Abstraction has 754 states and 1034 transitions. [2019-10-13 19:47:05,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:47:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1034 transitions. [2019-10-13 19:47:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 19:47:05,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:47:05,516 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 19:47:05,517 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:47:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:47:05,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1572879564, now seen corresponding path program 1 times [2019-10-13 19:47:05,517 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:47:05,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317080589] [2019-10-13 19:47:05,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:05,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:47:05,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:47:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,734 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:47:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:47:05,976 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 19:47:05,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317080589] [2019-10-13 19:47:05,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:47:05,979 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:47:05,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587169263] [2019-10-13 19:47:05,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:47:05,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:47:05,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:47:05,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:47:05,993 INFO L87 Difference]: Start difference. First operand 754 states and 1034 transitions. Second operand 13 states. [2019-10-13 19:47:07,495 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-13 19:47:07,655 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 135