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 0.1.24-13a467a-m [2019-10-14 23:45:30,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:45:30,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:45:30,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:45:30,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:45:30,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:45:30,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:45:30,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:45:30,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:45:30,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:45:30,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:45:30,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:45:30,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:45:30,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:45:30,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:45:30,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:45:30,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:45:30,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:45:30,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:45:30,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:45:30,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:45:30,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:45:30,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:45:30,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:45:30,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:45:30,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:45:30,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:45:30,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:45:30,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:45:30,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:45:30,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:45:30,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:45:30,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:45:30,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:45:30,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:45:30,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:45:30,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:45:30,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:45:30,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:45:30,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:45:30,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:45:30,382 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 [2019-10-14 23:45:30,396 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:45:30,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:45:30,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:45:30,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:45:30,398 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:45:30,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:45:30,399 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:45:30,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:45:30,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:45:30,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:45:30,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:45:30,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:45:30,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:45:30,400 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:45:30,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:45:30,400 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:45:30,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:45:30,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:45:30,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:45:30,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:45:30,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:45:30,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:45:30,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:45:30,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:45:30,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:45:30,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:45:30,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:45:30,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:45:30,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:45:30,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:45:30,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:45:30,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:45:30,709 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:45:30,710 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:45:30,711 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:30,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45824380/cf871140d4a14d35b8cdc05cddee5c7e/FLAG86dfd9ce8 [2019-10-14 23:45:31,354 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:45:31,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:31,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45824380/cf871140d4a14d35b8cdc05cddee5c7e/FLAG86dfd9ce8 [2019-10-14 23:45:31,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a45824380/cf871140d4a14d35b8cdc05cddee5c7e [2019-10-14 23:45:31,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:45:31,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:45:31,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:31,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:45:31,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:45:31,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:31" (1/1) ... [2019-10-14 23:45:31,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170a06bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:31, skipping insertion in model container [2019-10-14 23:45:31,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:31" (1/1) ... [2019-10-14 23:45:31,679 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:45:31,739 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:45:32,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:32,129 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:45:32,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:32,224 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:45:32,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32 WrapperNode [2019-10-14 23:45:32,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:32,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:45:32,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:45:32,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:45:32,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:45:32,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:45:32,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:45:32,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:45:32,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (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 [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-14 23:45:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-14 23:45:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:45:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-14 23:45:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:45:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:45:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:45:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-14 23:45:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-14 23:45:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:45:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:45:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:45:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:45:33,266 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:45:33,266 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:45:33,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:33 BoogieIcfgContainer [2019-10-14 23:45:33,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:45:33,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:45:33,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:45:33,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:45:33,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:45:31" (1/3) ... [2019-10-14 23:45:33,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6848306c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:33, skipping insertion in model container [2019-10-14 23:45:33,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32" (2/3) ... [2019-10-14 23:45:33,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6848306c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:33, skipping insertion in model container [2019-10-14 23:45:33,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:33" (3/3) ... [2019-10-14 23:45:33,279 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2019-10-14 23:45:33,290 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:45:33,301 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:45:33,313 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:45:33,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:45:33,344 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:45:33,344 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:45:33,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:45:33,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:45:33,344 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:45:33,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:45:33,345 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:45:33,368 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states. [2019-10-14 23:45:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:45:33,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:33,379 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] [2019-10-14 23:45:33,381 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:33,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1497229254, now seen corresponding path program 1 times [2019-10-14 23:45:33,397 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:33,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366303691] [2019-10-14 23:45:33,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:33,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:33,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,011 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:34,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366303691] [2019-10-14 23:45:34,376 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:34,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:34,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972012129] [2019-10-14 23:45:34,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:34,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:34,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:34,399 INFO L87 Difference]: Start difference. First operand 235 states. Second operand 11 states. [2019-10-14 23:45:34,685 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:37,117 INFO L93 Difference]: Finished difference Result 451 states and 690 transitions. [2019-10-14 23:45:37,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:37,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-14 23:45:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:37,134 INFO L225 Difference]: With dead ends: 451 [2019-10-14 23:45:37,135 INFO L226 Difference]: Without dead ends: 230 [2019-10-14 23:45:37,142 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 [2019-10-14 23:45:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-14 23:45:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2019-10-14 23:45:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-10-14 23:45:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 320 transitions. [2019-10-14 23:45:37,238 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 320 transitions. Word has length 65 [2019-10-14 23:45:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:37,239 INFO L462 AbstractCegarLoop]: Abstraction has 230 states and 320 transitions. [2019-10-14 23:45:37,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 320 transitions. [2019-10-14 23:45:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-14 23:45:37,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:37,244 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] [2019-10-14 23:45:37,244 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1347913347, now seen corresponding path program 1 times [2019-10-14 23:45:37,245 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:37,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661483408] [2019-10-14 23:45:37,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:37,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:37,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,528 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:37,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661483408] [2019-10-14 23:45:37,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:37,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:37,783 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337296468] [2019-10-14 23:45:37,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:37,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:37,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:37,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:37,793 INFO L87 Difference]: Start difference. First operand 230 states and 320 transitions. Second operand 11 states. [2019-10-14 23:45:38,849 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:45:38,999 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:40,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:40,226 INFO L93 Difference]: Finished difference Result 442 states and 628 transitions. [2019-10-14 23:45:40,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:40,226 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-14 23:45:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:40,231 INFO L225 Difference]: With dead ends: 442 [2019-10-14 23:45:40,231 INFO L226 Difference]: Without dead ends: 234 [2019-10-14 23:45:40,233 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 [2019-10-14 23:45:40,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-10-14 23:45:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2019-10-14 23:45:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-10-14 23:45:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 323 transitions. [2019-10-14 23:45:40,280 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 323 transitions. Word has length 76 [2019-10-14 23:45:40,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:40,281 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 323 transitions. [2019-10-14 23:45:40,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:40,281 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 323 transitions. [2019-10-14 23:45:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:45:40,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:40,289 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] [2019-10-14 23:45:40,290 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:40,291 INFO L82 PathProgramCache]: Analyzing trace with hash 607799179, now seen corresponding path program 1 times [2019-10-14 23:45:40,292 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:40,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902305775] [2019-10-14 23:45:40,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:40,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:40,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,550 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:40,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902305775] [2019-10-14 23:45:40,849 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:40,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:40,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275038696] [2019-10-14 23:45:40,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:40,851 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:40,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:40,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:40,852 INFO L87 Difference]: Start difference. First operand 234 states and 323 transitions. Second operand 16 states. [2019-10-14 23:45:41,056 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:42,600 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-14 23:45:43,228 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:45,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:45,188 INFO L93 Difference]: Finished difference Result 533 states and 738 transitions. [2019-10-14 23:45:45,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:45,188 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-14 23:45:45,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:45,194 INFO L225 Difference]: With dead ends: 533 [2019-10-14 23:45:45,194 INFO L226 Difference]: Without dead ends: 321 [2019-10-14 23:45:45,196 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 [2019-10-14 23:45:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-14 23:45:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2019-10-14 23:45:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-10-14 23:45:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2019-10-14 23:45:45,246 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 435 transitions. Word has length 94 [2019-10-14 23:45:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:45,247 INFO L462 AbstractCegarLoop]: Abstraction has 320 states and 435 transitions. [2019-10-14 23:45:45,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 435 transitions. [2019-10-14 23:45:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-14 23:45:45,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:45,250 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] [2019-10-14 23:45:45,250 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:45,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1371679745, now seen corresponding path program 1 times [2019-10-14 23:45:45,251 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:45,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603382919] [2019-10-14 23:45:45,252 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:45,252 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:45,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,493 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:45,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:45,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603382919] [2019-10-14 23:45:45,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:45,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:45,762 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010494280] [2019-10-14 23:45:45,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:45,764 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:45,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:45,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:45,765 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. Second operand 16 states. [2019-10-14 23:45:45,930 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:47,892 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:49,850 INFO L93 Difference]: Finished difference Result 539 states and 746 transitions. [2019-10-14 23:45:49,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:49,851 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-14 23:45:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:49,855 INFO L225 Difference]: With dead ends: 539 [2019-10-14 23:45:49,855 INFO L226 Difference]: Without dead ends: 324 [2019-10-14 23:45:49,857 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-14 23:45:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-14 23:45:49,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 320. [2019-10-14 23:45:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-10-14 23:45:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2019-10-14 23:45:49,901 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 435 transitions. Word has length 95 [2019-10-14 23:45:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:49,903 INFO L462 AbstractCegarLoop]: Abstraction has 320 states and 435 transitions. [2019-10-14 23:45:49,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 435 transitions. [2019-10-14 23:45:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-14 23:45:49,905 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:49,905 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] [2019-10-14 23:45:49,905 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:49,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:49,906 INFO L82 PathProgramCache]: Analyzing trace with hash 141577624, now seen corresponding path program 1 times [2019-10-14 23:45:49,906 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:49,906 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859307656] [2019-10-14 23:45:49,906 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:49,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:49,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,110 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:50,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859307656] [2019-10-14 23:45:50,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:50,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:50,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846766025] [2019-10-14 23:45:50,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:50,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:50,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:50,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:50,352 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. Second operand 12 states. [2019-10-14 23:45:51,079 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:53,858 INFO L93 Difference]: Finished difference Result 767 states and 1066 transitions. [2019-10-14 23:45:53,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:53,858 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-14 23:45:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:53,864 INFO L225 Difference]: With dead ends: 767 [2019-10-14 23:45:53,864 INFO L226 Difference]: Without dead ends: 552 [2019-10-14 23:45:53,865 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 [2019-10-14 23:45:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2019-10-14 23:45:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 534. [2019-10-14 23:45:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2019-10-14 23:45:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 738 transitions. [2019-10-14 23:45:53,928 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 738 transitions. Word has length 96 [2019-10-14 23:45:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:53,929 INFO L462 AbstractCegarLoop]: Abstraction has 534 states and 738 transitions. [2019-10-14 23:45:53,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 738 transitions. [2019-10-14 23:45:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:45:53,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:53,931 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] [2019-10-14 23:45:53,931 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:53,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:53,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1335466069, now seen corresponding path program 1 times [2019-10-14 23:45:53,932 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:53,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986216745] [2019-10-14 23:45:53,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:53,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:53,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,095 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:54,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986216745] [2019-10-14 23:45:54,325 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:54,326 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:54,326 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032507726] [2019-10-14 23:45:54,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:54,327 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:54,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:54,327 INFO L87 Difference]: Start difference. First operand 534 states and 738 transitions. Second operand 12 states. [2019-10-14 23:45:55,397 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:56,971 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-10-14 23:45:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:57,971 INFO L93 Difference]: Finished difference Result 1269 states and 1795 transitions. [2019-10-14 23:45:57,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:57,972 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:45:57,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:57,982 INFO L225 Difference]: With dead ends: 1269 [2019-10-14 23:45:57,983 INFO L226 Difference]: Without dead ends: 883 [2019-10-14 23:45:57,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2019-10-14 23:45:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-10-14 23:45:58,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 877. [2019-10-14 23:45:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-10-14 23:45:58,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1230 transitions. [2019-10-14 23:45:58,105 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1230 transitions. Word has length 97 [2019-10-14 23:45:58,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:58,107 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1230 transitions. [2019-10-14 23:45:58,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1230 transitions. [2019-10-14 23:45:58,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:45:58,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:58,110 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] [2019-10-14 23:45:58,110 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash 2036530647, now seen corresponding path program 1 times [2019-10-14 23:45:58,111 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:58,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339831944] [2019-10-14 23:45:58,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:58,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:58,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,329 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:45:58,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339831944] [2019-10-14 23:45:58,565 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:58,566 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:58,566 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539607348] [2019-10-14 23:45:58,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:58,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:58,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:58,567 INFO L87 Difference]: Start difference. First operand 877 states and 1230 transitions. Second operand 12 states. [2019-10-14 23:45:59,968 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:00,789 INFO L93 Difference]: Finished difference Result 1479 states and 2087 transitions. [2019-10-14 23:46:00,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:46:00,790 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:46:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:00,795 INFO L225 Difference]: With dead ends: 1479 [2019-10-14 23:46:00,796 INFO L226 Difference]: Without dead ends: 718 [2019-10-14 23:46:00,801 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 [2019-10-14 23:46:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2019-10-14 23:46:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2019-10-14 23:46:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2019-10-14 23:46:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 998 transitions. [2019-10-14 23:46:00,896 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 998 transitions. Word has length 97 [2019-10-14 23:46:00,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:00,897 INFO L462 AbstractCegarLoop]: Abstraction has 718 states and 998 transitions. [2019-10-14 23:46:00,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:46:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 998 transitions. [2019-10-14 23:46:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:46:00,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:00,899 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] [2019-10-14 23:46:00,900 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:00,900 INFO L82 PathProgramCache]: Analyzing trace with hash -2127297953, now seen corresponding path program 1 times [2019-10-14 23:46:00,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:00,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398707222] [2019-10-14 23:46:00,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:00,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:00,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,148 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:01,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398707222] [2019-10-14 23:46:01,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:01,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:01,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415535457] [2019-10-14 23:46:01,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:01,340 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:01,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:01,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:01,341 INFO L87 Difference]: Start difference. First operand 718 states and 998 transitions. Second operand 13 states. [2019-10-14 23:46:02,859 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:03,006 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:46:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:03,998 INFO L93 Difference]: Finished difference Result 1300 states and 1833 transitions. [2019-10-14 23:46:03,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:46:03,999 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-14 23:46:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:04,005 INFO L225 Difference]: With dead ends: 1300 [2019-10-14 23:46:04,005 INFO L226 Difference]: Without dead ends: 733 [2019-10-14 23:46:04,009 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 [2019-10-14 23:46:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-14 23:46:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2019-10-14 23:46:04,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2019-10-14 23:46:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1010 transitions. [2019-10-14 23:46:04,107 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1010 transitions. Word has length 97 [2019-10-14 23:46:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:04,108 INFO L462 AbstractCegarLoop]: Abstraction has 733 states and 1010 transitions. [2019-10-14 23:46:04,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:46:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1010 transitions. [2019-10-14 23:46:04,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-14 23:46:04,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:04,110 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] [2019-10-14 23:46:04,110 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:04,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:04,110 INFO L82 PathProgramCache]: Analyzing trace with hash 344185535, now seen corresponding path program 1 times [2019-10-14 23:46:04,111 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:04,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314233210] [2019-10-14 23:46:04,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:04,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:04,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,332 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:04,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314233210] [2019-10-14 23:46:04,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:04,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:04,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992386399] [2019-10-14 23:46:04,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:04,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:04,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:04,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:04,531 INFO L87 Difference]: Start difference. First operand 733 states and 1010 transitions. Second operand 13 states. [2019-10-14 23:46:06,037 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:06,187 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:46:07,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:07,116 INFO L93 Difference]: Finished difference Result 1330 states and 1866 transitions. [2019-10-14 23:46:07,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:46:07,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2019-10-14 23:46:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:07,123 INFO L225 Difference]: With dead ends: 1330 [2019-10-14 23:46:07,123 INFO L226 Difference]: Without dead ends: 748 [2019-10-14 23:46:07,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:46:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2019-10-14 23:46:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2019-10-14 23:46:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2019-10-14 23:46:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1022 transitions. [2019-10-14 23:46:07,193 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1022 transitions. Word has length 105 [2019-10-14 23:46:07,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:07,193 INFO L462 AbstractCegarLoop]: Abstraction has 748 states and 1022 transitions. [2019-10-14 23:46:07,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:46:07,194 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1022 transitions. [2019-10-14 23:46:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-14 23:46:07,196 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:07,196 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] [2019-10-14 23:46:07,196 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:07,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:07,196 INFO L82 PathProgramCache]: Analyzing trace with hash -325164599, now seen corresponding path program 1 times [2019-10-14 23:46:07,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:07,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560920327] [2019-10-14 23:46:07,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:07,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:07,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,442 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:07,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560920327] [2019-10-14 23:46:07,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:07,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:07,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25400892] [2019-10-14 23:46:07,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:07,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:07,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:07,664 INFO L87 Difference]: Start difference. First operand 748 states and 1022 transitions. Second operand 13 states.