/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_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:07:45,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:07:45,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:07:45,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:07:45,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:07:45,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:07:45,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:07:45,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:07:45,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:07:45,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:07:45,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:07:45,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:07:45,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:07:45,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:07:45,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:07:45,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:07:45,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:07:45,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:07:45,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:07:45,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:07:45,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:07:45,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:07:45,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:07:45,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:07:45,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:07:45,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:07:45,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:07:45,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:07:45,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:07:45,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:07:45,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:07:45,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:07:45,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:07:45,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:07:45,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:07:45,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:07:45,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:07:45,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:07:45,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:07:45,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:07:45,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:07:45,104 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 22:07:45,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:07:45,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:07:45,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:07:45,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:07:45,119 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:07:45,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:07:45,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:07:45,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:07:45,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:07:45,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:07:45,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:07:45,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:07:45,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:07:45,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:07:45,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:07:45,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:07:45,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:07:45,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:07:45,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:07:45,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:07:45,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:07:45,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:07:45,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:07:45,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:07:45,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:07:45,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:07:45,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:07:45,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:07:45,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:07:45,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:07:45,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:07:45,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:07:45,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:07:45,439 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:07:45,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-11-06 22:07:45,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15fe0c78/9b9c1fa7c03a4445a63f88862c8cf3aa/FLAG4df92e0a4 [2019-11-06 22:07:45,993 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:07:45,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-11-06 22:07:46,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15fe0c78/9b9c1fa7c03a4445a63f88862c8cf3aa/FLAG4df92e0a4 [2019-11-06 22:07:46,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15fe0c78/9b9c1fa7c03a4445a63f88862c8cf3aa [2019-11-06 22:07:46,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:07:46,380 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:07:46,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:46,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:07:46,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:07:46,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:46" (1/1) ... [2019-11-06 22:07:46,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3813a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:46, skipping insertion in model container [2019-11-06 22:07:46,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:46" (1/1) ... [2019-11-06 22:07:46,398 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:07:46,467 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:07:46,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:46,876 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:07:47,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:07:47,054 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:07:47,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47 WrapperNode [2019-11-06 22:07:47,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:07:47,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:07:47,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:07:47,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:07:47,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (1/1) ... [2019-11-06 22:07:47,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:07:47,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:07:47,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:07:47,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:07:47,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (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 22:07:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:07:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:07:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:07:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:07:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:07:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:07:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:07:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:07:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:07:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:07:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:07:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:07:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:07:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:07:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:07:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:07:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:07:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:07:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:07:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:07:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:07:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:07:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:07:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:07:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:07:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:07:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:07:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:07:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:07:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:07:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:07:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:07:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:07:48,276 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:07:48,276 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:07:48,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:48 BoogieIcfgContainer [2019-11-06 22:07:48,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:07:48,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:07:48,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:07:48,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:07:48,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:07:46" (1/3) ... [2019-11-06 22:07:48,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c906c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:48, skipping insertion in model container [2019-11-06 22:07:48,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:47" (2/3) ... [2019-11-06 22:07:48,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c906c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:48, skipping insertion in model container [2019-11-06 22:07:48,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:48" (3/3) ... [2019-11-06 22:07:48,286 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-11-06 22:07:48,296 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:07:48,305 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:07:48,316 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:07:48,345 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:07:48,346 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:07:48,346 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:07:48,346 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:07:48,347 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:07:48,347 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:07:48,347 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:07:48,347 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:07:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-11-06 22:07:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:07:48,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:48,394 INFO L410 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] [2019-11-06 22:07:48,400 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:48,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2053229239, now seen corresponding path program 1 times [2019-11-06 22:07:48,415 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:48,415 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028189176] [2019-11-06 22:07:48,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,097 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:49,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028189176] [2019-11-06 22:07:49,194 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:49,194 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:07:49,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375687493] [2019-11-06 22:07:49,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:07:49,203 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:49,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:07:49,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:07:49,221 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 4 states. [2019-11-06 22:07:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:50,405 INFO L93 Difference]: Finished difference Result 313 states and 401 transitions. [2019-11-06 22:07:50,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:07:50,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:07:50,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:50,421 INFO L225 Difference]: With dead ends: 313 [2019-11-06 22:07:50,422 INFO L226 Difference]: Without dead ends: 172 [2019-11-06 22:07:50,426 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 22:07:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-06 22:07:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 142. [2019-11-06 22:07:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-06 22:07:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2019-11-06 22:07:50,546 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 59 [2019-11-06 22:07:50,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:50,547 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2019-11-06 22:07:50,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:07:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2019-11-06 22:07:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-06 22:07:50,562 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:50,562 INFO L410 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] [2019-11-06 22:07:50,563 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1701396789, now seen corresponding path program 1 times [2019-11-06 22:07:50,563 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:50,564 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351554290] [2019-11-06 22:07:50,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:50,992 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:51,085 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351554290] [2019-11-06 22:07:51,086 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:51,086 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:07:51,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482569] [2019-11-06 22:07:51,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:07:51,089 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:51,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:07:51,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:07:51,090 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 5 states. [2019-11-06 22:07:51,601 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:52,506 INFO L93 Difference]: Finished difference Result 254 states and 309 transitions. [2019-11-06 22:07:52,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 22:07:52,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-06 22:07:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:52,510 INFO L225 Difference]: With dead ends: 254 [2019-11-06 22:07:52,510 INFO L226 Difference]: Without dead ends: 162 [2019-11-06 22:07:52,512 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:07:52,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-06 22:07:52,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2019-11-06 22:07:52,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-06 22:07:52,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2019-11-06 22:07:52,550 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 60 [2019-11-06 22:07:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:52,550 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2019-11-06 22:07:52,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:07:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2019-11-06 22:07:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 22:07:52,552 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:52,552 INFO L410 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] [2019-11-06 22:07:52,552 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:52,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:52,553 INFO L82 PathProgramCache]: Analyzing trace with hash -835538636, now seen corresponding path program 1 times [2019-11-06 22:07:52,553 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:52,553 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255414107] [2019-11-06 22:07:52,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:52,961 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:53,063 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255414107] [2019-11-06 22:07:53,063 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:53,063 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:07:53,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391511226] [2019-11-06 22:07:53,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:07:53,064 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:53,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:07:53,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:07:53,065 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand 9 states. [2019-11-06 22:07:53,491 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:53,829 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:54,143 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:54,419 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:55,842 INFO L93 Difference]: Finished difference Result 267 states and 328 transitions. [2019-11-06 22:07:55,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:07:55,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-11-06 22:07:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:55,848 INFO L225 Difference]: With dead ends: 267 [2019-11-06 22:07:55,848 INFO L226 Difference]: Without dead ends: 162 [2019-11-06 22:07:55,849 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:07:55,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-06 22:07:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2019-11-06 22:07:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-06 22:07:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-11-06 22:07:55,881 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 65 [2019-11-06 22:07:55,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:55,882 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-11-06 22:07:55,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-11-06 22:07:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-11-06 22:07:55,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:55,884 INFO L410 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] [2019-11-06 22:07:55,884 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:55,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:55,884 INFO L82 PathProgramCache]: Analyzing trace with hash -192684169, now seen corresponding path program 1 times [2019-11-06 22:07:55,885 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:55,885 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894282086] [2019-11-06 22:07:55,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,189 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:56,287 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894282086] [2019-11-06 22:07:56,287 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:56,287 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:07:56,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801042512] [2019-11-06 22:07:56,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:07:56,288 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:56,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:07:56,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:07:56,289 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 7 states. [2019-11-06 22:07:56,763 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:58,324 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:58,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:58,947 INFO L93 Difference]: Finished difference Result 371 states and 462 transitions. [2019-11-06 22:07:58,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:07:58,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-11-06 22:07:58,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:58,952 INFO L225 Difference]: With dead ends: 371 [2019-11-06 22:07:58,952 INFO L226 Difference]: Without dead ends: 266 [2019-11-06 22:07:58,954 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:07:58,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-06 22:07:59,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 220. [2019-11-06 22:07:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-11-06 22:07:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2019-11-06 22:07:59,002 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 78 [2019-11-06 22:07:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:59,003 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2019-11-06 22:07:59,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:07:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2019-11-06 22:07:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:07:59,004 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:59,005 INFO L410 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] [2019-11-06 22:07:59,005 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:59,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:59,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1827957124, now seen corresponding path program 1 times [2019-11-06 22:07:59,005 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:59,006 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077937618] [2019-11-06 22:07:59,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,327 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:59,491 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077937618] [2019-11-06 22:07:59,492 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:59,492 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:07:59,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469350447] [2019-11-06 22:07:59,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:07:59,493 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:59,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:07:59,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:07:59,494 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand 11 states. [2019-11-06 22:08:00,254 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:00,529 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:00,787 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:01,702 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:02,011 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:02,290 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:03,353 INFO L93 Difference]: Finished difference Result 459 states and 566 transitions. [2019-11-06 22:08:03,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:08:03,354 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2019-11-06 22:08:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:03,357 INFO L225 Difference]: With dead ends: 459 [2019-11-06 22:08:03,357 INFO L226 Difference]: Without dead ends: 267 [2019-11-06 22:08:03,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:08:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-11-06 22:08:03,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 224. [2019-11-06 22:08:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-06 22:08:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2019-11-06 22:08:03,408 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 92 [2019-11-06 22:08:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:03,409 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2019-11-06 22:08:03,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:08:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2019-11-06 22:08:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:08:03,411 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:03,411 INFO L410 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] [2019-11-06 22:08:03,411 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:03,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1850589378, now seen corresponding path program 1 times [2019-11-06 22:08:03,412 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:03,412 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897050479] [2019-11-06 22:08:03,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,708 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:08:03,864 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897050479] [2019-11-06 22:08:03,865 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:03,866 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:03,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308836992] [2019-11-06 22:08:03,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:03,867 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:03,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:03,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:03,868 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand 9 states. [2019-11-06 22:08:04,423 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:05,168 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:05,871 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:06,217 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:06,759 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:07,038 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:07,675 INFO L93 Difference]: Finished difference Result 465 states and 564 transitions. [2019-11-06 22:08:07,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:08:07,676 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-11-06 22:08:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:07,679 INFO L225 Difference]: With dead ends: 465 [2019-11-06 22:08:07,680 INFO L226 Difference]: Without dead ends: 269 [2019-11-06 22:08:07,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:08:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-11-06 22:08:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 223. [2019-11-06 22:08:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-11-06 22:08:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 253 transitions. [2019-11-06 22:08:07,724 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 253 transitions. Word has length 92 [2019-11-06 22:08:07,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:07,725 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 253 transitions. [2019-11-06 22:08:07,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 253 transitions. [2019-11-06 22:08:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-06 22:08:07,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:07,727 INFO L410 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] [2019-11-06 22:08:07,727 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:07,728 INFO L82 PathProgramCache]: Analyzing trace with hash -185232827, now seen corresponding path program 1 times [2019-11-06 22:08:07,728 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:07,728 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775574655] [2019-11-06 22:08:07,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:07,999 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:08,137 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775574655] [2019-11-06 22:08:08,138 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:08,138 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:08:08,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354424630] [2019-11-06 22:08:08,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:08:08,140 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:08,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:08:08,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:08:08,141 INFO L87 Difference]: Start difference. First operand 223 states and 253 transitions. Second operand 9 states. [2019-11-06 22:08:09,324 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:09,620 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:08:09,901 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:10,151 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:10,991 INFO L93 Difference]: Finished difference Result 463 states and 558 transitions. [2019-11-06 22:08:10,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:08:10,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-11-06 22:08:10,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:11,001 INFO L225 Difference]: With dead ends: 463 [2019-11-06 22:08:11,001 INFO L226 Difference]: Without dead ends: 268 [2019-11-06 22:08:11,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:08:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-11-06 22:08:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2019-11-06 22:08:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-06 22:08:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 258 transitions. [2019-11-06 22:08:11,050 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 258 transitions. Word has length 93 [2019-11-06 22:08:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:11,051 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 258 transitions. [2019-11-06 22:08:11,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:08:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 258 transitions. [2019-11-06 22:08:11,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-06 22:08:11,052 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:11,052 INFO L410 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] [2019-11-06 22:08:11,052 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:11,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2053119352, now seen corresponding path program 1 times [2019-11-06 22:08:11,053 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:11,053 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135506684] [2019-11-06 22:08:11,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,333 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:11,451 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135506684] [2019-11-06 22:08:11,456 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:11,456 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:08:11,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85639273] [2019-11-06 22:08:11,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:08:11,457 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:11,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:08:11,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:08:11,457 INFO L87 Difference]: Start difference. First operand 228 states and 258 transitions. Second operand 7 states. [2019-11-06 22:08:11,817 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:12,386 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:14,224 INFO L93 Difference]: Finished difference Result 649 states and 808 transitions. [2019-11-06 22:08:14,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:08:14,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-11-06 22:08:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:14,230 INFO L225 Difference]: With dead ends: 649 [2019-11-06 22:08:14,230 INFO L226 Difference]: Without dead ends: 449 [2019-11-06 22:08:14,231 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-06 22:08:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-11-06 22:08:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 407. [2019-11-06 22:08:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-11-06 22:08:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 474 transitions. [2019-11-06 22:08:14,301 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 474 transitions. Word has length 93 [2019-11-06 22:08:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:14,302 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 474 transitions. [2019-11-06 22:08:14,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:08:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 474 transitions. [2019-11-06 22:08:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:08:14,304 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:14,304 INFO L410 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] [2019-11-06 22:08:14,304 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 868259694, now seen corresponding path program 1 times [2019-11-06 22:08:14,305 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:14,305 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801932321] [2019-11-06 22:08:14,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,722 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:08:14,914 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801932321] [2019-11-06 22:08:14,915 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:08:14,915 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:08:14,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338401419] [2019-11-06 22:08:14,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:08:14,916 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:14,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:08:14,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:08:14,916 INFO L87 Difference]: Start difference. First operand 407 states and 474 transitions. Second operand 12 states. [2019-11-06 22:08:15,461 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:16,209 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:17,356 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:17,703 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:17,975 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:08:18,259 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:18,553 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:08:19,830 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:20,117 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:08:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:08:20,742 INFO L93 Difference]: Finished difference Result 1129 states and 1399 transitions. [2019-11-06 22:08:20,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:08:20,742 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-11-06 22:08:20,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:08:20,748 INFO L225 Difference]: With dead ends: 1129 [2019-11-06 22:08:20,748 INFO L226 Difference]: Without dead ends: 824 [2019-11-06 22:08:20,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:08:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2019-11-06 22:08:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 702. [2019-11-06 22:08:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2019-11-06 22:08:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 810 transitions. [2019-11-06 22:08:20,872 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 810 transitions. Word has length 97 [2019-11-06 22:08:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:08:20,873 INFO L462 AbstractCegarLoop]: Abstraction has 702 states and 810 transitions. [2019-11-06 22:08:20,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:08:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 810 transitions. [2019-11-06 22:08:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-06 22:08:20,875 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:08:20,876 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, 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, 1, 1, 1] [2019-11-06 22:08:20,876 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:08:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:08:20,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1063606964, now seen corresponding path program 1 times [2019-11-06 22:08:20,876 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:08:20,877 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840991488] [2019-11-06 22:08:20,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:08:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,182 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:08:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-06 22:08:21,455 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840991488] [2019-11-06 22:08:21,455 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003578477] [2019-11-06 22:08:21,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:08:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:08:21,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:08:21,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:08:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:08:21,862 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:08:21,862 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:08:21,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280194378] [2019-11-06 22:08:21,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:08:21,864 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:08:21,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:08:21,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:08:21,864 INFO L87 Difference]: Start difference. First operand 702 states and 810 transitions. Second operand 20 states. [2019-11-06 22:08:22,812 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:08:23,215 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:08:23,512 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:08:23,796 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-06 22:08:24,637 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:08:24,940 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193