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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:09,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:09,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:09,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:09,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:09,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:09,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:09,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:09,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:09,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:09,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:09,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:09,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:09,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:09,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:09,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:09,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:09,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:09,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:09,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:09,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:09,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:09,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:09,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:09,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:09,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:09,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:09,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:09,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:09,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:09,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:09,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:09,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:09,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:09,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:09,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:09,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:09,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:09,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:09,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:09,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:09,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:36:09,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:09,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:09,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:09,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:09,170 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:09,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:09,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:09,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:09,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:09,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:09,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:09,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:09,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:09,171 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:09,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:09,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:09,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:09,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:09,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:09,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:09,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:09,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:09,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:09,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:09,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:09,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:09,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:09,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:09,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:09,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:09,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:09,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:09,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:09,504 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:09,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-10-14 23:36:09,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d373b6e55/1b44ca107c214db599f56f77e9976839/FLAG76597ae0d [2019-10-14 23:36:10,110 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:10,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-10-14 23:36:10,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d373b6e55/1b44ca107c214db599f56f77e9976839/FLAG76597ae0d [2019-10-14 23:36:10,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d373b6e55/1b44ca107c214db599f56f77e9976839 [2019-10-14 23:36:10,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:10,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:10,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:10,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:10,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:10,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:10" (1/1) ... [2019-10-14 23:36:10,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e394a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:10, skipping insertion in model container [2019-10-14 23:36:10,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:10" (1/1) ... [2019-10-14 23:36:10,417 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:10,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:10,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:10,897 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:11,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:11,065 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:11,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11 WrapperNode [2019-10-14 23:36:11,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:11,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:11,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:11,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:11,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... [2019-10-14 23:36:11,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:11,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:11,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:11,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:11,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:36:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:36:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:36:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:36:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:36:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:36:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:36:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:36:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:36:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:36:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:36:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:36:12,591 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:36:12,591 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:36:12,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:12 BoogieIcfgContainer [2019-10-14 23:36:12,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:36:12,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:36:12,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:36:12,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:36:12,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:10" (1/3) ... [2019-10-14 23:36:12,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eae751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:12, skipping insertion in model container [2019-10-14 23:36:12,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:11" (2/3) ... [2019-10-14 23:36:12,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eae751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:12, skipping insertion in model container [2019-10-14 23:36:12,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:12" (3/3) ... [2019-10-14 23:36:12,605 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2019-10-14 23:36:12,615 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:36:12,627 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:36:12,640 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:36:12,679 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:36:12,679 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:36:12,679 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:36:12,679 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:36:12,680 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:36:12,680 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:36:12,680 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:36:12,680 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:36:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2019-10-14 23:36:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:36:12,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:12,715 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:12,717 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:12,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:12,723 INFO L82 PathProgramCache]: Analyzing trace with hash -453171886, now seen corresponding path program 1 times [2019-10-14 23:36:12,732 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:12,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649484543] [2019-10-14 23:36:12,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:12,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:12,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,491 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:13,608 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649484543] [2019-10-14 23:36:13,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:13,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:13,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226993970] [2019-10-14 23:36:13,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:13,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:13,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:13,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:13,633 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 4 states. [2019-10-14 23:36:15,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:15,055 INFO L93 Difference]: Finished difference Result 353 states and 461 transitions. [2019-10-14 23:36:15,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:36:15,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-14 23:36:15,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:15,081 INFO L225 Difference]: With dead ends: 353 [2019-10-14 23:36:15,081 INFO L226 Difference]: Without dead ends: 196 [2019-10-14 23:36:15,089 INFO L600 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 [2019-10-14 23:36:15,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-14 23:36:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 158. [2019-10-14 23:36:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-14 23:36:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 188 transitions. [2019-10-14 23:36:15,190 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 188 transitions. Word has length 51 [2019-10-14 23:36:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:15,191 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 188 transitions. [2019-10-14 23:36:15,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:36:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 188 transitions. [2019-10-14 23:36:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:36:15,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:15,195 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:15,195 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:15,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:15,196 INFO L82 PathProgramCache]: Analyzing trace with hash 23130160, now seen corresponding path program 1 times [2019-10-14 23:36:15,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:15,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627780097] [2019-10-14 23:36:15,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:15,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:15,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,544 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:15,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627780097] [2019-10-14 23:36:15,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:15,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:36:15,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893676177] [2019-10-14 23:36:15,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:36:15,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:15,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:36:15,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:36:15,600 INFO L87 Difference]: Start difference. First operand 158 states and 188 transitions. Second operand 5 states. [2019-10-14 23:36:16,109 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:17,251 INFO L93 Difference]: Finished difference Result 288 states and 360 transitions. [2019-10-14 23:36:17,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:36:17,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-14 23:36:17,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:17,258 INFO L225 Difference]: With dead ends: 288 [2019-10-14 23:36:17,258 INFO L226 Difference]: Without dead ends: 186 [2019-10-14 23:36:17,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:36:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2019-10-14 23:36:17,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 149. [2019-10-14 23:36:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-10-14 23:36:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 176 transitions. [2019-10-14 23:36:17,301 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 176 transitions. Word has length 52 [2019-10-14 23:36:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:17,302 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 176 transitions. [2019-10-14 23:36:17,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:36:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2019-10-14 23:36:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:36:17,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:17,304 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:17,305 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1418292754, now seen corresponding path program 1 times [2019-10-14 23:36:17,305 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:17,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52377562] [2019-10-14 23:36:17,306 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:17,306 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:17,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,681 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:17,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52377562] [2019-10-14 23:36:17,801 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:17,801 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:36:17,801 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466615721] [2019-10-14 23:36:17,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:36:17,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:17,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:36:17,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:36:17,803 INFO L87 Difference]: Start difference. First operand 149 states and 176 transitions. Second operand 9 states. [2019-10-14 23:36:18,312 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:18,718 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:19,023 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:19,299 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:20,260 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:22,973 INFO L93 Difference]: Finished difference Result 503 states and 637 transitions. [2019-10-14 23:36:22,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:36:22,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-14 23:36:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:22,980 INFO L225 Difference]: With dead ends: 503 [2019-10-14 23:36:22,981 INFO L226 Difference]: Without dead ends: 382 [2019-10-14 23:36:22,982 INFO L600 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 [2019-10-14 23:36:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-14 23:36:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 309. [2019-10-14 23:36:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-14 23:36:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 378 transitions. [2019-10-14 23:36:23,062 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 378 transitions. Word has length 57 [2019-10-14 23:36:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:23,062 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 378 transitions. [2019-10-14 23:36:23,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:36:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 378 transitions. [2019-10-14 23:36:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-14 23:36:23,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:23,066 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:23,066 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:23,066 INFO L82 PathProgramCache]: Analyzing trace with hash -335998659, now seen corresponding path program 1 times [2019-10-14 23:36:23,067 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:23,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485507951] [2019-10-14 23:36:23,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:23,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:23,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,379 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:23,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485507951] [2019-10-14 23:36:23,532 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:23,532 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:36:23,532 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859656185] [2019-10-14 23:36:23,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:36:23,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:23,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:36:23,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:36:23,534 INFO L87 Difference]: Start difference. First operand 309 states and 378 transitions. Second operand 9 states. [2019-10-14 23:36:24,049 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:25,281 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:25,784 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:26,071 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:26,383 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:28,476 INFO L93 Difference]: Finished difference Result 992 states and 1314 transitions. [2019-10-14 23:36:28,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:36:28,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-10-14 23:36:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:28,484 INFO L225 Difference]: With dead ends: 992 [2019-10-14 23:36:28,484 INFO L226 Difference]: Without dead ends: 711 [2019-10-14 23:36:28,486 INFO L600 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 [2019-10-14 23:36:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2019-10-14 23:36:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 566. [2019-10-14 23:36:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-14 23:36:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 696 transitions. [2019-10-14 23:36:28,628 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 696 transitions. Word has length 62 [2019-10-14 23:36:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:28,629 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 696 transitions. [2019-10-14 23:36:28,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:36:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 696 transitions. [2019-10-14 23:36:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-14 23:36:28,633 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:28,633 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:28,633 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:28,634 INFO L82 PathProgramCache]: Analyzing trace with hash 563759321, now seen corresponding path program 1 times [2019-10-14 23:36:28,634 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:28,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345131629] [2019-10-14 23:36:28,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:28,635 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:28,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,945 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:29,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345131629] [2019-10-14 23:36:29,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:29,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:29,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464485644] [2019-10-14 23:36:29,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:29,052 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:29,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:29,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:29,053 INFO L87 Difference]: Start difference. First operand 566 states and 696 transitions. Second operand 10 states. [2019-10-14 23:36:29,583 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:30,752 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:31,051 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:31,345 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:36:32,142 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:33,746 INFO L93 Difference]: Finished difference Result 1565 states and 2138 transitions. [2019-10-14 23:36:33,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-14 23:36:33,747 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-14 23:36:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:33,756 INFO L225 Difference]: With dead ends: 1565 [2019-10-14 23:36:33,756 INFO L226 Difference]: Without dead ends: 1027 [2019-10-14 23:36:33,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-10-14 23:36:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2019-10-14 23:36:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 821. [2019-10-14 23:36:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-14 23:36:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 999 transitions. [2019-10-14 23:36:33,955 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 999 transitions. Word has length 66 [2019-10-14 23:36:33,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:33,956 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 999 transitions. [2019-10-14 23:36:33,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 999 transitions. [2019-10-14 23:36:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:36:33,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:33,959 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:33,959 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:33,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:33,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1340944239, now seen corresponding path program 1 times [2019-10-14 23:36:33,960 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:33,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159458080] [2019-10-14 23:36:33,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:33,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:33,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,258 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:34,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:34,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159458080] [2019-10-14 23:36:34,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:34,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:34,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674786563] [2019-10-14 23:36:34,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:34,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:34,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:34,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:34,394 INFO L87 Difference]: Start difference. First operand 821 states and 999 transitions. Second operand 10 states. [2019-10-14 23:36:35,694 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:35,993 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:36:36,270 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:36,594 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:37,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:37,980 INFO L93 Difference]: Finished difference Result 1894 states and 2518 transitions. [2019-10-14 23:36:37,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:36:37,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 94 [2019-10-14 23:36:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:37,989 INFO L225 Difference]: With dead ends: 1894 [2019-10-14 23:36:37,989 INFO L226 Difference]: Without dead ends: 1101 [2019-10-14 23:36:37,993 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:36:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2019-10-14 23:36:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 847. [2019-10-14 23:36:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-10-14 23:36:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2019-10-14 23:36:38,154 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 94 [2019-10-14 23:36:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:38,154 INFO L462 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2019-10-14 23:36:38,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2019-10-14 23:36:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:36:38,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:38,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:38,157 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:38,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1413330797, now seen corresponding path program 1 times [2019-10-14 23:36:38,158 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:38,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265209739] [2019-10-14 23:36:38,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:38,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:38,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,498 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:38,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265209739] [2019-10-14 23:36:38,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:38,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:36:38,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587423579] [2019-10-14 23:36:38,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:36:38,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:38,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:36:38,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:38,655 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 12 states. [2019-10-14 23:36:39,357 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:39,622 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:39,879 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:40,879 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:41,195 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:41,479 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:43,161 INFO L93 Difference]: Finished difference Result 1948 states and 2635 transitions. [2019-10-14 23:36:43,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:36:43,162 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-10-14 23:36:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:43,172 INFO L225 Difference]: With dead ends: 1948 [2019-10-14 23:36:43,172 INFO L226 Difference]: Without dead ends: 1129 [2019-10-14 23:36:43,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:36:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-10-14 23:36:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 863. [2019-10-14 23:36:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2019-10-14 23:36:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1043 transitions. [2019-10-14 23:36:43,331 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1043 transitions. Word has length 94 [2019-10-14 23:36:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:43,331 INFO L462 AbstractCegarLoop]: Abstraction has 863 states and 1043 transitions. [2019-10-14 23:36:43,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:36:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1043 transitions. [2019-10-14 23:36:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-14 23:36:43,334 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:43,334 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:43,335 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:43,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:43,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1083565036, now seen corresponding path program 1 times [2019-10-14 23:36:43,335 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:43,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139978162] [2019-10-14 23:36:43,336 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:43,336 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:43,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,612 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:43,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139978162] [2019-10-14 23:36:43,814 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:43,814 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:43,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566059849] [2019-10-14 23:36:43,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:43,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:43,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:43,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:43,816 INFO L87 Difference]: Start difference. First operand 863 states and 1043 transitions. Second operand 8 states. [2019-10-14 23:36:44,222 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:44,829 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:47,997 INFO L93 Difference]: Finished difference Result 2919 states and 3977 transitions. [2019-10-14 23:36:47,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-14 23:36:47,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-10-14 23:36:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:48,011 INFO L225 Difference]: With dead ends: 2919 [2019-10-14 23:36:48,012 INFO L226 Difference]: Without dead ends: 2084 [2019-10-14 23:36:48,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:36:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2019-10-14 23:36:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1727. [2019-10-14 23:36:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2019-10-14 23:36:48,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2109 transitions. [2019-10-14 23:36:48,415 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2109 transitions. Word has length 94 [2019-10-14 23:36:48,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:48,415 INFO L462 AbstractCegarLoop]: Abstraction has 1727 states and 2109 transitions. [2019-10-14 23:36:48,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:48,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2109 transitions. [2019-10-14 23:36:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-14 23:36:48,420 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:48,421 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:48,421 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:48,422 INFO L82 PathProgramCache]: Analyzing trace with hash -452793586, now seen corresponding path program 1 times [2019-10-14 23:36:48,422 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:48,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558348371] [2019-10-14 23:36:48,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:48,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:48,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat