/usr/bin/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/product-lines/minepump_spec2_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:57:53,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:57:53,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:57:53,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:57:53,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:57:53,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:57:53,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:57:53,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:57:53,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:57:53,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:57:53,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:57:53,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:57:53,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:57:53,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:57:53,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:57:53,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:57:53,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:57:53,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:57:53,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:57:53,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:57:53,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:57:53,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:57:53,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:57:53,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:57:53,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:57:53,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:57:53,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:57:53,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:57:53,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:57:53,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:57:53,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:57:53,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:57:53,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:57:53,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:57:53,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:57:53,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:57:53,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:57:53,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:57:53,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:57:53,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:57:53,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:57:53,225 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 [2019-11-06 21:57:53,239 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:57:53,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:57:53,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:57:53,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:57:53,240 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:57:53,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:57:53,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:57:53,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:57:53,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:57:53,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:57:53,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:57:53,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:57:53,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:57:53,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:57:53,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:57:53,243 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:57:53,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:57:53,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:57:53,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:57:53,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:57:53,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:57:53,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:57:53,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:57:53,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:57:53,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:57:53,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:57:53,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:57:53,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:57:53,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:57:53,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:57:53,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:57:53,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:57:53,519 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:57:53,519 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:57:53,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2019-11-06 21:57:53,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bd631a4/61da4e3620e943bfa44ce25762eb9b0b/FLAGa5f21a8d1 [2019-11-06 21:57:54,137 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:57:54,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2019-11-06 21:57:54,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bd631a4/61da4e3620e943bfa44ce25762eb9b0b/FLAGa5f21a8d1 [2019-11-06 21:57:54,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bd631a4/61da4e3620e943bfa44ce25762eb9b0b [2019-11-06 21:57:54,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:57:54,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:57:54,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:57:54,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:57:54,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:57:54,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:54" (1/1) ... [2019-11-06 21:57:54,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f3de09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:54, skipping insertion in model container [2019-11-06 21:57:54,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:57:54" (1/1) ... [2019-11-06 21:57:54,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:57:54,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:57:54,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:57:54,952 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:57:55,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:57:55,068 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:57:55,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55 WrapperNode [2019-11-06 21:57:55,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:57:55,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:57:55,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:57:55,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:57:55,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (1/1) ... [2019-11-06 21:57:55,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:57:55,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:57:55,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:57:55,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:57:55,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (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 [2019-11-06 21:57:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:57:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 21:57:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:57:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:57:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 21:57:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 21:57:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 21:57:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 21:57:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:57:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:57:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:57:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:57:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:57:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:57:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 21:57:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:57:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:57:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 21:57:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:57:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:57:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:57:55,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:57:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:57:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:57:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:57:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:57:56,309 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:57:56,309 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:57:56,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:56 BoogieIcfgContainer [2019-11-06 21:57:56,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:57:56,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:57:56,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:57:56,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:57:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:57:54" (1/3) ... [2019-11-06 21:57:56,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e3a39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:56, skipping insertion in model container [2019-11-06 21:57:56,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:57:55" (2/3) ... [2019-11-06 21:57:56,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e3a39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:56, skipping insertion in model container [2019-11-06 21:57:56,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:56" (3/3) ... [2019-11-06 21:57:56,320 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2019-11-06 21:57:56,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:57:56,342 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:57:56,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:57:56,383 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:57:56,383 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:57:56,383 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:57:56,383 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:57:56,383 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:57:56,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:57:56,384 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:57:56,384 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:57:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-11-06 21:57:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-06 21:57:56,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:57:56,417 INFO L410 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] [2019-11-06 21:57:56,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:57:56,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:57:56,426 INFO L82 PathProgramCache]: Analyzing trace with hash 652232891, now seen corresponding path program 1 times [2019-11-06 21:57:56,435 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:57:56,436 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688564928] [2019-11-06 21:57:56,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:57:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,128 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:57:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:57:57,230 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688564928] [2019-11-06 21:57:57,233 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:57:57,234 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:57:57,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182874003] [2019-11-06 21:57:57,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:57:57,250 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:57:57,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:57:57,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:57:57,268 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 4 states. [2019-11-06 21:57:58,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:57:58,599 INFO L93 Difference]: Finished difference Result 301 states and 396 transitions. [2019-11-06 21:57:58,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:57:58,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-11-06 21:57:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:57:58,628 INFO L225 Difference]: With dead ends: 301 [2019-11-06 21:57:58,628 INFO L226 Difference]: Without dead ends: 168 [2019-11-06 21:57:58,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:57:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-06 21:57:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 134. [2019-11-06 21:57:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-06 21:57:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2019-11-06 21:57:58,723 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 51 [2019-11-06 21:57:58,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:57:58,723 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2019-11-06 21:57:58,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:57:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2019-11-06 21:57:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 21:57:58,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:57:58,728 INFO L410 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] [2019-11-06 21:57:58,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:57:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:57:58,729 INFO L82 PathProgramCache]: Analyzing trace with hash -564528421, now seen corresponding path program 1 times [2019-11-06 21:57:58,729 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:57:58,729 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771684826] [2019-11-06 21:57:58,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:57:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,119 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:57:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:57:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:57:59,180 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771684826] [2019-11-06 21:57:59,180 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:57:59,180 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:57:59,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115487271] [2019-11-06 21:57:59,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:57:59,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:57:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:57:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:57:59,195 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand 5 states. [2019-11-06 21:57:59,712 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:00,710 INFO L93 Difference]: Finished difference Result 240 states and 299 transitions. [2019-11-06 21:58:00,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:58:00,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-11-06 21:58:00,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:00,715 INFO L225 Difference]: With dead ends: 240 [2019-11-06 21:58:00,715 INFO L226 Difference]: Without dead ends: 158 [2019-11-06 21:58:00,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:58:00,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-06 21:58:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 125. [2019-11-06 21:58:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-06 21:58:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2019-11-06 21:58:00,753 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 52 [2019-11-06 21:58:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:00,753 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2019-11-06 21:58:00,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:58:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2019-11-06 21:58:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-06 21:58:00,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:00,756 INFO L410 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] [2019-11-06 21:58:00,756 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:00,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1211879035, now seen corresponding path program 1 times [2019-11-06 21:58:00,757 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:00,757 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446647061] [2019-11-06 21:58:00,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,115 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:01,225 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446647061] [2019-11-06 21:58:01,225 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:01,225 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:58:01,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445197623] [2019-11-06 21:58:01,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:58:01,226 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:01,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:58:01,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:58:01,227 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 9 states. [2019-11-06 21:58:01,738 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:02,115 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 21:58:02,422 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:02,706 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:03,665 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:05,807 INFO L93 Difference]: Finished difference Result 423 states and 537 transitions. [2019-11-06 21:58:05,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 21:58:05,808 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-11-06 21:58:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:05,812 INFO L225 Difference]: With dead ends: 423 [2019-11-06 21:58:05,813 INFO L226 Difference]: Without dead ends: 326 [2019-11-06 21:58:05,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:58:05,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-11-06 21:58:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 265. [2019-11-06 21:58:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-06 21:58:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2019-11-06 21:58:05,888 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 56 [2019-11-06 21:58:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:05,888 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2019-11-06 21:58:05,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:58:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2019-11-06 21:58:05,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-06 21:58:05,891 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:05,892 INFO L410 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] [2019-11-06 21:58:05,892 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:05,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:05,892 INFO L82 PathProgramCache]: Analyzing trace with hash -773448372, now seen corresponding path program 1 times [2019-11-06 21:58:05,893 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:05,893 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632517769] [2019-11-06 21:58:05,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,289 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:06,404 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632517769] [2019-11-06 21:58:06,404 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:06,404 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:58:06,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578924980] [2019-11-06 21:58:06,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:58:06,405 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:06,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:58:06,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:58:06,406 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand 9 states. [2019-11-06 21:58:07,044 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:08,178 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:08,597 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:08,958 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:09,311 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:10,679 INFO L93 Difference]: Finished difference Result 845 states and 1123 transitions. [2019-11-06 21:58:10,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 21:58:10,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-11-06 21:58:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:10,686 INFO L225 Difference]: With dead ends: 845 [2019-11-06 21:58:10,686 INFO L226 Difference]: Without dead ends: 608 [2019-11-06 21:58:10,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-11-06 21:58:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-06 21:58:10,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 478. [2019-11-06 21:58:10,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-11-06 21:58:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 588 transitions. [2019-11-06 21:58:10,827 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 588 transitions. Word has length 62 [2019-11-06 21:58:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:10,827 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 588 transitions. [2019-11-06 21:58:10,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:58:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 588 transitions. [2019-11-06 21:58:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-06 21:58:10,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:10,831 INFO L410 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] [2019-11-06 21:58:10,831 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:10,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1032831448, now seen corresponding path program 1 times [2019-11-06 21:58:10,832 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:10,832 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945272250] [2019-11-06 21:58:10,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,133 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:11,266 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945272250] [2019-11-06 21:58:11,266 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:11,267 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:58:11,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740231877] [2019-11-06 21:58:11,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:58:11,269 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:11,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:58:11,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:58:11,270 INFO L87 Difference]: Start difference. First operand 478 states and 588 transitions. Second operand 10 states. [2019-11-06 21:58:11,773 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:12,863 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:13,180 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:13,483 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:14,134 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:15,397 INFO L93 Difference]: Finished difference Result 1339 states and 1842 transitions. [2019-11-06 21:58:15,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-06 21:58:15,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-11-06 21:58:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:15,406 INFO L225 Difference]: With dead ends: 1339 [2019-11-06 21:58:15,406 INFO L226 Difference]: Without dead ends: 889 [2019-11-06 21:58:15,408 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-11-06 21:58:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2019-11-06 21:58:15,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 693. [2019-11-06 21:58:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-11-06 21:58:15,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 847 transitions. [2019-11-06 21:58:15,546 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 847 transitions. Word has length 66 [2019-11-06 21:58:15,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:15,547 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 847 transitions. [2019-11-06 21:58:15,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:58:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 847 transitions. [2019-11-06 21:58:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:58:15,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:15,550 INFO L410 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] [2019-11-06 21:58:15,550 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:15,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1961211398, now seen corresponding path program 1 times [2019-11-06 21:58:15,551 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:15,551 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450869032] [2019-11-06 21:58:15,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,848 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:16,039 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450869032] [2019-11-06 21:58:16,039 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:16,039 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:58:16,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905895886] [2019-11-06 21:58:16,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:58:16,043 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:16,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:58:16,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:58:16,044 INFO L87 Difference]: Start difference. First operand 693 states and 847 transitions. Second operand 10 states. [2019-11-06 21:58:16,547 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:17,629 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:17,942 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 21:58:18,238 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:18,560 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:20,459 INFO L93 Difference]: Finished difference Result 2350 states and 3369 transitions. [2019-11-06 21:58:20,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-06 21:58:20,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-06 21:58:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:20,471 INFO L225 Difference]: With dead ends: 2350 [2019-11-06 21:58:20,471 INFO L226 Difference]: Without dead ends: 1685 [2019-11-06 21:58:20,475 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2019-11-06 21:58:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-11-06 21:58:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1247. [2019-11-06 21:58:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2019-11-06 21:58:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1522 transitions. [2019-11-06 21:58:20,819 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1522 transitions. Word has length 88 [2019-11-06 21:58:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:20,819 INFO L462 AbstractCegarLoop]: Abstraction has 1247 states and 1522 transitions. [2019-11-06 21:58:20,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:58:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1522 transitions. [2019-11-06 21:58:20,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:58:20,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:20,826 INFO L410 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] [2019-11-06 21:58:20,826 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:20,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:20,827 INFO L82 PathProgramCache]: Analyzing trace with hash 608275001, now seen corresponding path program 1 times [2019-11-06 21:58:20,827 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:20,828 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295825965] [2019-11-06 21:58:20,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,169 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:21,317 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295825965] [2019-11-06 21:58:21,318 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:21,318 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:58:21,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036623770] [2019-11-06 21:58:21,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:58:21,319 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:21,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:58:21,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:58:21,321 INFO L87 Difference]: Start difference. First operand 1247 states and 1522 transitions. Second operand 10 states. [2019-11-06 21:58:22,594 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:22,867 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 21:58:23,159 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:23,469 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:24,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:24,649 INFO L93 Difference]: Finished difference Result 2904 states and 3892 transitions. [2019-11-06 21:58:24,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 21:58:24,650 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-06 21:58:24,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:24,661 INFO L225 Difference]: With dead ends: 2904 [2019-11-06 21:58:24,661 INFO L226 Difference]: Without dead ends: 1685 [2019-11-06 21:58:24,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:58:24,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-11-06 21:58:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1287. [2019-11-06 21:58:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1287 states. [2019-11-06 21:58:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1562 transitions. [2019-11-06 21:58:24,966 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1562 transitions. Word has length 88 [2019-11-06 21:58:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:24,968 INFO L462 AbstractCegarLoop]: Abstraction has 1287 states and 1562 transitions. [2019-11-06 21:58:24,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:58:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1562 transitions. [2019-11-06 21:58:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:58:24,971 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:24,972 INFO L410 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] [2019-11-06 21:58:24,972 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1309874875, now seen corresponding path program 1 times [2019-11-06 21:58:24,973 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:24,973 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242137811] [2019-11-06 21:58:24,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,253 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:25,414 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242137811] [2019-11-06 21:58:25,415 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:25,415 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 21:58:25,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804499395] [2019-11-06 21:58:25,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 21:58:25,416 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:25,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 21:58:25,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:58:25,417 INFO L87 Difference]: Start difference. First operand 1287 states and 1562 transitions. Second operand 12 states. [2019-11-06 21:58:26,127 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:58:26,403 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:26,657 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:27,493 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:27,787 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:28,045 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:58:29,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:29,485 INFO L93 Difference]: Finished difference Result 2600 states and 3450 transitions. [2019-11-06 21:58:29,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 21:58:29,486 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-11-06 21:58:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:29,495 INFO L225 Difference]: With dead ends: 2600 [2019-11-06 21:58:29,496 INFO L226 Difference]: Without dead ends: 1341 [2019-11-06 21:58:29,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:58:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2019-11-06 21:58:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1063. [2019-11-06 21:58:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2019-11-06 21:58:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1258 transitions. [2019-11-06 21:58:29,765 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1258 transitions. Word has length 88 [2019-11-06 21:58:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:29,765 INFO L462 AbstractCegarLoop]: Abstraction has 1063 states and 1258 transitions. [2019-11-06 21:58:29,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 21:58:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1258 transitions. [2019-11-06 21:58:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 21:58:29,770 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:29,770 INFO L410 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] [2019-11-06 21:58:29,770 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:29,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1814435734, now seen corresponding path program 1 times [2019-11-06 21:58:29,772 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:29,773 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74842348] [2019-11-06 21:58:29,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,109 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:58:30,204 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74842348] [2019-11-06 21:58:30,205 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:58:30,205 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:58:30,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352225805] [2019-11-06 21:58:30,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:58:30,206 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:58:30,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:58:30,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:58:30,207 INFO L87 Difference]: Start difference. First operand 1063 states and 1258 transitions. Second operand 8 states. [2019-11-06 21:58:30,664 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:58:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:58:33,292 INFO L93 Difference]: Finished difference Result 2130 states and 2835 transitions. [2019-11-06 21:58:33,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-06 21:58:33,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-11-06 21:58:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:58:33,305 INFO L225 Difference]: With dead ends: 2130 [2019-11-06 21:58:33,306 INFO L226 Difference]: Without dead ends: 2127 [2019-11-06 21:58:33,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2019-11-06 21:58:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2019-11-06 21:58:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1652. [2019-11-06 21:58:33,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1652 states. [2019-11-06 21:58:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1981 transitions. [2019-11-06 21:58:33,705 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1981 transitions. Word has length 92 [2019-11-06 21:58:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:58:33,707 INFO L462 AbstractCegarLoop]: Abstraction has 1652 states and 1981 transitions. [2019-11-06 21:58:33,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:58:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1981 transitions. [2019-11-06 21:58:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 21:58:33,714 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:58:33,715 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 21:58:33,715 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:58:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:58:33,715 INFO L82 PathProgramCache]: Analyzing trace with hash 518900876, now seen corresponding path program 1 times [2019-11-06 21:58:33,716 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:58:33,716 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128029647] [2019-11-06 21:58:33,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:58:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,011 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:58:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:58:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat