java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:45:31,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:45:31,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:45:31,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:45:31,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:45:31,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:45:31,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:45:31,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:45:31,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:45:31,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:45:31,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:45:31,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:45:31,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:45:31,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:45:31,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:45:31,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:45:31,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:45:31,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:45:31,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:45:31,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:45:31,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:45:31,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:45:31,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:45:31,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:45:31,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:45:31,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:45:31,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:45:31,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:45:31,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:45:31,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:45:31,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:45:31,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:45:31,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:45:31,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:45:31,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:45:31,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:45:31,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:45:31,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:45:31,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:45:31,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:45:31,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:45:31,307 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 23:45:31,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:45:31,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:45:31,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:45:31,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:45:31,323 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:45:31,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:45:31,324 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:45:31,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:45:31,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:45:31,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:45:31,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:45:31,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:45:31,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:45:31,325 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:45:31,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:45:31,326 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:45:31,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:45:31,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:45:31,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:45:31,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:45:31,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:45:31,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:45:31,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:45:31,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:45:31,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:45:31,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:45:31,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:45:31,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:45:31,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:45:31,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:45:31,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:45:31,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:45:31,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:45:31,609 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:45:31,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-14 23:45:31,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a2f4948/1d5e8838a6ff47b691f1ce13649c2953/FLAGddc59e551 [2019-10-14 23:45:32,193 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:45:32,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-14 23:45:32,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a2f4948/1d5e8838a6ff47b691f1ce13649c2953/FLAGddc59e551 [2019-10-14 23:45:32,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a2f4948/1d5e8838a6ff47b691f1ce13649c2953 [2019-10-14 23:45:32,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:45:32,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:45:32,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:32,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:45:32,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:45:32,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4432d2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:32, skipping insertion in model container [2019-10-14 23:45:32,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:32" (1/1) ... [2019-10-14 23:45:32,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:45:32,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:45:33,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:33,018 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:45:33,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:45:33,124 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:45:33,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33 WrapperNode [2019-10-14 23:45:33,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:45:33,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:45:33,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:45:33,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:45:33,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (1/1) ... [2019-10-14 23:45:33,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:45:33,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:45:33,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:45:33,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:45:33,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (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 23:45:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:45:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2019-10-14 23:45:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2019-10-14 23:45:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2019-10-14 23:45:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2019-10-14 23:45:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-14 23:45:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2019-10-14 23:45:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:45:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-14 23:45:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2019-10-14 23:45:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2019-10-14 23:45:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:45:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:45:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:45:34,217 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:45:34,218 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:45:34,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:34 BoogieIcfgContainer [2019-10-14 23:45:34,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:45:34,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:45:34,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:45:34,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:45:34,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:45:32" (1/3) ... [2019-10-14 23:45:34,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef98c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:34, skipping insertion in model container [2019-10-14 23:45:34,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:33" (2/3) ... [2019-10-14 23:45:34,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef98c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:34, skipping insertion in model container [2019-10-14 23:45:34,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:34" (3/3) ... [2019-10-14 23:45:34,234 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2019-10-14 23:45:34,245 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:45:34,255 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:45:34,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:45:34,306 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:45:34,307 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:45:34,308 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:45:34,308 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:45:34,308 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:45:34,308 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:45:34,308 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:45:34,309 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:45:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2019-10-14 23:45:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:45:34,349 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:34,350 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 23:45:34,353 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1914592099, now seen corresponding path program 1 times [2019-10-14 23:45:34,369 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:34,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971133494] [2019-10-14 23:45:34,370 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:34,370 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:34,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:34,977 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:35,347 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 23:45:35,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971133494] [2019-10-14 23:45:35,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:35,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:35,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363935201] [2019-10-14 23:45:35,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:35,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:35,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:35,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:35,377 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 11 states. [2019-10-14 23:45:35,680 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:38,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:38,119 INFO L93 Difference]: Finished difference Result 444 states and 684 transitions. [2019-10-14 23:45:38,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:38,121 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-10-14 23:45:38,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:38,135 INFO L225 Difference]: With dead ends: 444 [2019-10-14 23:45:38,136 INFO L226 Difference]: Without dead ends: 229 [2019-10-14 23:45:38,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:45:38,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-10-14 23:45:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-10-14 23:45:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-10-14 23:45:38,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2019-10-14 23:45:38,230 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 65 [2019-10-14 23:45:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:38,231 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2019-10-14 23:45:38,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2019-10-14 23:45:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-14 23:45:38,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:38,236 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 23:45:38,236 INFO L410 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:38,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:38,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2098614595, now seen corresponding path program 1 times [2019-10-14 23:45:38,237 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:38,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56075257] [2019-10-14 23:45:38,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:38,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:38,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,474 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:38,728 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 23:45:38,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56075257] [2019-10-14 23:45:38,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:38,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:45:38,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940301568] [2019-10-14 23:45:38,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:45:38,741 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:38,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:45:38,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:45:38,745 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 11 states. [2019-10-14 23:45:39,699 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:45:39,853 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:41,052 INFO L93 Difference]: Finished difference Result 440 states and 626 transitions. [2019-10-14 23:45:41,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:45:41,053 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2019-10-14 23:45:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:41,058 INFO L225 Difference]: With dead ends: 440 [2019-10-14 23:45:41,058 INFO L226 Difference]: Without dead ends: 233 [2019-10-14 23:45:41,060 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 23:45:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-10-14 23:45:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-10-14 23:45:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-14 23:45:41,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2019-10-14 23:45:41,099 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 322 transitions. Word has length 76 [2019-10-14 23:45:41,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:41,099 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 322 transitions. [2019-10-14 23:45:41,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:45:41,100 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 322 transitions. [2019-10-14 23:45:41,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:45:41,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:41,102 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 23:45:41,103 INFO L410 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:41,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:41,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1135646998, now seen corresponding path program 1 times [2019-10-14 23:45:41,103 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:41,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445894557] [2019-10-14 23:45:41,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:41,104 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:41,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,336 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:41,848 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 23:45:41,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445894557] [2019-10-14 23:45:41,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:41,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:41,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147917925] [2019-10-14 23:45:41,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:41,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:41,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:41,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:41,851 INFO L87 Difference]: Start difference. First operand 233 states and 322 transitions. Second operand 16 states. [2019-10-14 23:45:42,108 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:44,169 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:46,222 INFO L93 Difference]: Finished difference Result 531 states and 736 transitions. [2019-10-14 23:45:46,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:46,223 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2019-10-14 23:45:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:46,228 INFO L225 Difference]: With dead ends: 531 [2019-10-14 23:45:46,228 INFO L226 Difference]: Without dead ends: 320 [2019-10-14 23:45:46,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2019-10-14 23:45:46,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-14 23:45:46,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2019-10-14 23:45:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-14 23:45:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 434 transitions. [2019-10-14 23:45:46,285 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 434 transitions. Word has length 94 [2019-10-14 23:45:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:46,288 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 434 transitions. [2019-10-14 23:45:46,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 434 transitions. [2019-10-14 23:45:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-14 23:45:46,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:46,296 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 23:45:46,296 INFO L410 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash -376916963, now seen corresponding path program 1 times [2019-10-14 23:45:46,297 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:46,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541151925] [2019-10-14 23:45:46,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:46,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:46,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,561 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:46,971 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 23:45:46,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541151925] [2019-10-14 23:45:46,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:46,972 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:45:46,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540773802] [2019-10-14 23:45:46,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:45:46,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:46,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:45:46,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:45:46,974 INFO L87 Difference]: Start difference. First operand 319 states and 434 transitions. Second operand 16 states. [2019-10-14 23:45:47,164 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-10-14 23:45:48,921 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-10-14 23:45:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:50,891 INFO L93 Difference]: Finished difference Result 537 states and 744 transitions. [2019-10-14 23:45:50,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:45:50,891 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-10-14 23:45:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:50,895 INFO L225 Difference]: With dead ends: 537 [2019-10-14 23:45:50,895 INFO L226 Difference]: Without dead ends: 323 [2019-10-14 23:45:50,896 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 [2019-10-14 23:45:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-10-14 23:45:50,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 319. [2019-10-14 23:45:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-14 23:45:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 434 transitions. [2019-10-14 23:45:50,952 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 434 transitions. Word has length 95 [2019-10-14 23:45:50,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:50,952 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 434 transitions. [2019-10-14 23:45:50,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:45:50,953 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 434 transitions. [2019-10-14 23:45:50,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-14 23:45:50,954 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:50,955 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 23:45:50,955 INFO L410 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:50,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:50,955 INFO L82 PathProgramCache]: Analyzing trace with hash 121472215, now seen corresponding path program 1 times [2019-10-14 23:45:50,955 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:50,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343246964] [2019-10-14 23:45:50,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:50,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:50,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,156 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:51,430 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 23:45:51,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343246964] [2019-10-14 23:45:51,431 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:51,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:51,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143570488] [2019-10-14 23:45:51,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:51,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:51,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:51,433 INFO L87 Difference]: Start difference. First operand 319 states and 434 transitions. Second operand 12 states. [2019-10-14 23:45:52,245 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:54,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:54,867 INFO L93 Difference]: Finished difference Result 764 states and 1063 transitions. [2019-10-14 23:45:54,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:54,871 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-14 23:45:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:54,876 INFO L225 Difference]: With dead ends: 764 [2019-10-14 23:45:54,876 INFO L226 Difference]: Without dead ends: 550 [2019-10-14 23:45:54,877 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 23:45:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-14 23:45:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 533. [2019-10-14 23:45:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2019-10-14 23:45:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 737 transitions. [2019-10-14 23:45:54,938 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 737 transitions. Word has length 96 [2019-10-14 23:45:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:54,938 INFO L462 AbstractCegarLoop]: Abstraction has 533 states and 737 transitions. [2019-10-14 23:45:54,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 737 transitions. [2019-10-14 23:45:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:45:54,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:54,940 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 23:45:54,941 INFO L410 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:54,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1774390923, now seen corresponding path program 1 times [2019-10-14 23:45:54,941 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:54,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771193421] [2019-10-14 23:45:54,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:54,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:54,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,115 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:55,364 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 23:45:55,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771193421] [2019-10-14 23:45:55,365 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:55,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:55,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621084771] [2019-10-14 23:45:55,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:55,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:55,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:55,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:55,369 INFO L87 Difference]: Start difference. First operand 533 states and 737 transitions. Second operand 12 states. [2019-10-14 23:45:56,381 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:45:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:45:59,099 INFO L93 Difference]: Finished difference Result 1266 states and 1792 transitions. [2019-10-14 23:45:59,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-14 23:45:59,100 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:45:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:45:59,113 INFO L225 Difference]: With dead ends: 1266 [2019-10-14 23:45:59,113 INFO L226 Difference]: Without dead ends: 881 [2019-10-14 23:45:59,117 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 [2019-10-14 23:45:59,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-10-14 23:45:59,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 875. [2019-10-14 23:45:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2019-10-14 23:45:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1228 transitions. [2019-10-14 23:45:59,277 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1228 transitions. Word has length 97 [2019-10-14 23:45:59,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:45:59,278 INFO L462 AbstractCegarLoop]: Abstraction has 875 states and 1228 transitions. [2019-10-14 23:45:59,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:45:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1228 transitions. [2019-10-14 23:45:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:45:59,280 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:45:59,281 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 23:45:59,281 INFO L410 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:45:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:45:59,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1073326345, now seen corresponding path program 1 times [2019-10-14 23:45:59,282 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:45:59,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591288856] [2019-10-14 23:45:59,282 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:59,283 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:45:59,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:45:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,473 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:45:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:45:59,682 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 23:45:59,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591288856] [2019-10-14 23:45:59,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:45:59,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:45:59,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851488628] [2019-10-14 23:45:59,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:45:59,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:45:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:45:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:45:59,685 INFO L87 Difference]: Start difference. First operand 875 states and 1228 transitions. Second operand 12 states. [2019-10-14 23:46:00,950 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:01,789 INFO L93 Difference]: Finished difference Result 1475 states and 2083 transitions. [2019-10-14 23:46:01,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:46:01,790 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:46:01,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:01,795 INFO L225 Difference]: With dead ends: 1475 [2019-10-14 23:46:01,795 INFO L226 Difference]: Without dead ends: 716 [2019-10-14 23:46:01,799 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:46:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-10-14 23:46:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2019-10-14 23:46:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2019-10-14 23:46:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 996 transitions. [2019-10-14 23:46:01,870 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 996 transitions. Word has length 97 [2019-10-14 23:46:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:01,871 INFO L462 AbstractCegarLoop]: Abstraction has 716 states and 996 transitions. [2019-10-14 23:46:01,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:46:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 996 transitions. [2019-10-14 23:46:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:46:01,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:01,873 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 23:46:01,873 INFO L410 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:01,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1721002108, now seen corresponding path program 1 times [2019-10-14 23:46:01,874 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:01,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62151008] [2019-10-14 23:46:01,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:01,874 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:01,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,129 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:46:02,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62151008] [2019-10-14 23:46:02,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:02,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:02,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157768361] [2019-10-14 23:46:02,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:02,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:02,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:02,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:02,425 INFO L87 Difference]: Start difference. First operand 716 states and 996 transitions. Second operand 13 states. [2019-10-14 23:46:04,063 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:04,222 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:46:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:05,197 INFO L93 Difference]: Finished difference Result 1296 states and 1829 transitions. [2019-10-14 23:46:05,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:46:05,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-14 23:46:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:05,203 INFO L225 Difference]: With dead ends: 1296 [2019-10-14 23:46:05,204 INFO L226 Difference]: Without dead ends: 731 [2019-10-14 23:46:05,207 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:46:05,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-10-14 23:46:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2019-10-14 23:46:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2019-10-14 23:46:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1008 transitions. [2019-10-14 23:46:05,277 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1008 transitions. Word has length 97 [2019-10-14 23:46:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:05,277 INFO L462 AbstractCegarLoop]: Abstraction has 731 states and 1008 transitions. [2019-10-14 23:46:05,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:46:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1008 transitions. [2019-10-14 23:46:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-14 23:46:05,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:05,279 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 23:46:05,280 INFO L410 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:05,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:05,280 INFO L82 PathProgramCache]: Analyzing trace with hash 190055260, now seen corresponding path program 1 times [2019-10-14 23:46:05,280 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:05,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106021855] [2019-10-14 23:46:05,280 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:05,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:05,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,477 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:05,725 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 23:46:05,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106021855] [2019-10-14 23:46:05,732 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:05,732 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:05,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748395427] [2019-10-14 23:46:05,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:05,734 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:05,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:05,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:05,735 INFO L87 Difference]: Start difference. First operand 731 states and 1008 transitions. Second operand 13 states. [2019-10-14 23:46:07,227 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-10-14 23:46:07,397 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-14 23:46:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:46:08,268 INFO L93 Difference]: Finished difference Result 1326 states and 1862 transitions. [2019-10-14 23:46:08,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:46:08,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2019-10-14 23:46:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:46:08,275 INFO L225 Difference]: With dead ends: 1326 [2019-10-14 23:46:08,275 INFO L226 Difference]: Without dead ends: 746 [2019-10-14 23:46:08,278 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 [2019-10-14 23:46:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-14 23:46:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2019-10-14 23:46:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-14 23:46:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1020 transitions. [2019-10-14 23:46:08,350 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1020 transitions. Word has length 105 [2019-10-14 23:46:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:46:08,351 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 1020 transitions. [2019-10-14 23:46:08,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:46:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1020 transitions. [2019-10-14 23:46:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-14 23:46:08,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:46:08,355 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 23:46:08,355 INFO L410 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:46:08,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:46:08,355 INFO L82 PathProgramCache]: Analyzing trace with hash 338939110, now seen corresponding path program 1 times [2019-10-14 23:46:08,356 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:46:08,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000934419] [2019-10-14 23:46:08,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:08,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:46:08,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:46:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,573 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:46:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:46:08,838 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 23:46:08,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000934419] [2019-10-14 23:46:08,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:46:08,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:46:08,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921543446] [2019-10-14 23:46:08,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:46:08,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:46:08,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:46:08,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:46:08,841 INFO L87 Difference]: Start difference. First operand 746 states and 1020 transitions. Second operand 13 states.