java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:36:26,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:36:26,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:36:26,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:36:26,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:36:26,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:36:26,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:36:26,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:36:26,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:36:26,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:36:26,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:36:26,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:36:26,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:36:26,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:36:26,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:36:26,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:36:26,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:36:26,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:36:26,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:36:26,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:36:26,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:36:26,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:36:26,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:36:26,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:36:26,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:36:26,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:36:26,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:36:26,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:36:26,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:36:26,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:36:26,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:36:26,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:36:26,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:36:26,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:36:26,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:36:26,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:36:26,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:36:26,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:36:26,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:36:26,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:36:26,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:36:26,240 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 [2019-10-13 19:36:26,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:36:26,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:36:26,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:36:26,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:36:26,262 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:36:26,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:36:26,263 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:36:26,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:36:26,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:36:26,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:36:26,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:36:26,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:36:26,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:36:26,264 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:36:26,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:36:26,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:36:26,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:36:26,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:36:26,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:36:26,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:36:26,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:36:26,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:36:26,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:36:26,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:36:26,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:36:26,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:36:26,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:36:26,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:36:26,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:36:26,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:36:26,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:36:26,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:36:26,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:36:26,538 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:36:26,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2019-10-13 19:36:26,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefe6496/69d7fb0ef6454799912603654eddd6b9/FLAG4ce88a477 [2019-10-13 19:36:27,152 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:36:27,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2019-10-13 19:36:27,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefe6496/69d7fb0ef6454799912603654eddd6b9/FLAG4ce88a477 [2019-10-13 19:36:27,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fefe6496/69d7fb0ef6454799912603654eddd6b9 [2019-10-13 19:36:27,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:36:27,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:36:27,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:27,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:36:27,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:36:27,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:27" (1/1) ... [2019-10-13 19:36:27,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4709edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:27, skipping insertion in model container [2019-10-13 19:36:27,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:27" (1/1) ... [2019-10-13 19:36:27,510 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:36:27,559 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:36:28,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:28,034 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:36:28,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:36:28,155 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:36:28,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28 WrapperNode [2019-10-13 19:36:28,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:36:28,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:36:28,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:36:28,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:36:28,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (1/1) ... [2019-10-13 19:36:28,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:36:28,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:36:28,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:36:28,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:36:28,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (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 [2019-10-13 19:36:28,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:36:28,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:36:28,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:28,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:36:28,308 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:36:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:36:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:36:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:36:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:36:28,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:36:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:36:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:36:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:36:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:36:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:36:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:36:28,314 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:36:28,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:36:28,316 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:36:28,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:36:28,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:36:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:36:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:36:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:36:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:36:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:36:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:36:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:36:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:36:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:36:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:36:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:36:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:36:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:36:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:36:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:36:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:36:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:36:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:36:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:36:28,324 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:36:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:36:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:36:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:36:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:36:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:36:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:36:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:36:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:36:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:36:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:36:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:36:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:36:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:36:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:36:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:36:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:36:29,414 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:36:29,415 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:36:29,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:29 BoogieIcfgContainer [2019-10-13 19:36:29,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:36:29,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:36:29,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:36:29,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:36:29,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:36:27" (1/3) ... [2019-10-13 19:36:29,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d291c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:29, skipping insertion in model container [2019-10-13 19:36:29,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:28" (2/3) ... [2019-10-13 19:36:29,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d291c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:29, skipping insertion in model container [2019-10-13 19:36:29,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:29" (3/3) ... [2019-10-13 19:36:29,424 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2019-10-13 19:36:29,433 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:36:29,441 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:36:29,452 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:36:29,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:36:29,478 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:36:29,478 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:36:29,478 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:36:29,479 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:36:29,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:36:29,479 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:36:29,479 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:36:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-13 19:36:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:36:29,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:29,512 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] [2019-10-13 19:36:29,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:29,520 INFO L82 PathProgramCache]: Analyzing trace with hash 652232891, now seen corresponding path program 1 times [2019-10-13 19:36:29,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:29,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897557550] [2019-10-13 19:36:29,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:29,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:29,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,164 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:30,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897557550] [2019-10-13 19:36:30,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:30,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:36:30,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311905937] [2019-10-13 19:36:30,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:36:30,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:30,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:36:30,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:36:30,319 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 4 states. [2019-10-13 19:36:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:31,543 INFO L93 Difference]: Finished difference Result 301 states and 396 transitions. [2019-10-13 19:36:31,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:36:31,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-13 19:36:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:31,559 INFO L225 Difference]: With dead ends: 301 [2019-10-13 19:36:31,559 INFO L226 Difference]: Without dead ends: 168 [2019-10-13 19:36:31,563 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 [2019-10-13 19:36:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-10-13 19:36:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 134. [2019-10-13 19:36:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-13 19:36:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2019-10-13 19:36:31,651 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 51 [2019-10-13 19:36:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:31,651 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2019-10-13 19:36:31,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:36:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2019-10-13 19:36:31,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:36:31,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:31,655 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] [2019-10-13 19:36:31,655 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:31,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:31,656 INFO L82 PathProgramCache]: Analyzing trace with hash -564528421, now seen corresponding path program 1 times [2019-10-13 19:36:31,656 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:31,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757837496] [2019-10-13 19:36:31,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:31,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:31,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:31,982 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:32,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757837496] [2019-10-13 19:36:32,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:32,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:36:32,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006790563] [2019-10-13 19:36:32,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:36:32,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:32,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:36:32,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:36:32,047 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand 5 states. [2019-10-13 19:36:32,569 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:33,487 INFO L93 Difference]: Finished difference Result 240 states and 299 transitions. [2019-10-13 19:36:33,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:36:33,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 19:36:33,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:33,492 INFO L225 Difference]: With dead ends: 240 [2019-10-13 19:36:33,492 INFO L226 Difference]: Without dead ends: 158 [2019-10-13 19:36:33,494 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 [2019-10-13 19:36:33,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-13 19:36:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 125. [2019-10-13 19:36:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 19:36:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2019-10-13 19:36:33,557 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 52 [2019-10-13 19:36:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:33,558 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2019-10-13 19:36:33,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:36:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2019-10-13 19:36:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 19:36:33,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:33,561 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] [2019-10-13 19:36:33,561 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:33,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1211879035, now seen corresponding path program 1 times [2019-10-13 19:36:33,562 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:33,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506925239] [2019-10-13 19:36:33,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:33,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:33,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:33,950 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:34,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506925239] [2019-10-13 19:36:34,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:34,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:36:34,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665968127] [2019-10-13 19:36:34,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:36:34,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:34,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:36:34,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:36:34,065 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 9 states. [2019-10-13 19:36:34,509 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:34,868 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:36:35,136 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:35,392 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:36,246 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:38,222 INFO L93 Difference]: Finished difference Result 423 states and 537 transitions. [2019-10-13 19:36:38,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:36:38,223 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-10-13 19:36:38,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:38,229 INFO L225 Difference]: With dead ends: 423 [2019-10-13 19:36:38,229 INFO L226 Difference]: Without dead ends: 326 [2019-10-13 19:36:38,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:36:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-13 19:36:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 265. [2019-10-13 19:36:38,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-10-13 19:36:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2019-10-13 19:36:38,301 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 56 [2019-10-13 19:36:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:38,301 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2019-10-13 19:36:38,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:36:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2019-10-13 19:36:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-13 19:36:38,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:38,305 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] [2019-10-13 19:36:38,305 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:38,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:38,305 INFO L82 PathProgramCache]: Analyzing trace with hash -773448372, now seen corresponding path program 1 times [2019-10-13 19:36:38,306 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:38,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546995631] [2019-10-13 19:36:38,306 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:38,306 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:38,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,611 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:38,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546995631] [2019-10-13 19:36:38,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:38,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:36:38,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900938614] [2019-10-13 19:36:38,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:36:38,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:38,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:36:38,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:36:38,696 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand 9 states. [2019-10-13 19:36:39,145 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:40,264 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:40,672 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:41,023 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:41,376 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:42,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:42,711 INFO L93 Difference]: Finished difference Result 845 states and 1123 transitions. [2019-10-13 19:36:42,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:36:42,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-10-13 19:36:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:42,717 INFO L225 Difference]: With dead ends: 845 [2019-10-13 19:36:42,717 INFO L226 Difference]: Without dead ends: 608 [2019-10-13 19:36:42,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:36:42,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-13 19:36:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 478. [2019-10-13 19:36:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-13 19:36:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 588 transitions. [2019-10-13 19:36:42,831 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 588 transitions. Word has length 62 [2019-10-13 19:36:42,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:42,831 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 588 transitions. [2019-10-13 19:36:42,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:36:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 588 transitions. [2019-10-13 19:36:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-13 19:36:42,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:42,835 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] [2019-10-13 19:36:42,835 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:42,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1032831448, now seen corresponding path program 1 times [2019-10-13 19:36:42,836 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:42,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742761621] [2019-10-13 19:36:42,836 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:42,836 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:42,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,127 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:43,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742761621] [2019-10-13 19:36:43,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:43,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:36:43,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562797805] [2019-10-13 19:36:43,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:36:43,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:43,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:36:43,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:36:43,252 INFO L87 Difference]: Start difference. First operand 478 states and 588 transitions. Second operand 10 states. [2019-10-13 19:36:43,832 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:44,887 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:45,194 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:45,460 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:46,121 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:47,406 INFO L93 Difference]: Finished difference Result 1339 states and 1842 transitions. [2019-10-13 19:36:47,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:36:47,406 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-13 19:36:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:47,413 INFO L225 Difference]: With dead ends: 1339 [2019-10-13 19:36:47,413 INFO L226 Difference]: Without dead ends: 889 [2019-10-13 19:36:47,416 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-10-13 19:36:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2019-10-13 19:36:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 693. [2019-10-13 19:36:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-13 19:36:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 847 transitions. [2019-10-13 19:36:47,580 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 847 transitions. Word has length 66 [2019-10-13 19:36:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:47,581 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 847 transitions. [2019-10-13 19:36:47,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:36:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 847 transitions. [2019-10-13 19:36:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:47,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:47,583 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] [2019-10-13 19:36:47,583 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:47,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1961211398, now seen corresponding path program 1 times [2019-10-13 19:36:47,584 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:47,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694463183] [2019-10-13 19:36:47,584 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:47,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:47,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,859 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:48,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694463183] [2019-10-13 19:36:48,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:48,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:36:48,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709787620] [2019-10-13 19:36:48,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:36:48,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:48,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:36:48,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:36:48,022 INFO L87 Difference]: Start difference. First operand 693 states and 847 transitions. Second operand 10 states. [2019-10-13 19:36:48,475 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:36:49,580 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:49,857 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:36:50,164 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:50,447 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:52,311 INFO L93 Difference]: Finished difference Result 2350 states and 3369 transitions. [2019-10-13 19:36:52,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:36:52,312 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-13 19:36:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:52,325 INFO L225 Difference]: With dead ends: 2350 [2019-10-13 19:36:52,325 INFO L226 Difference]: Without dead ends: 1685 [2019-10-13 19:36:52,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2019-10-13 19:36:52,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-10-13 19:36:52,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1247. [2019-10-13 19:36:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2019-10-13 19:36:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1522 transitions. [2019-10-13 19:36:52,691 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1522 transitions. Word has length 88 [2019-10-13 19:36:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:52,692 INFO L462 AbstractCegarLoop]: Abstraction has 1247 states and 1522 transitions. [2019-10-13 19:36:52,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:36:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1522 transitions. [2019-10-13 19:36:52,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:52,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:52,696 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] [2019-10-13 19:36:52,697 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:52,697 INFO L82 PathProgramCache]: Analyzing trace with hash 608275001, now seen corresponding path program 1 times [2019-10-13 19:36:52,697 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:52,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857963080] [2019-10-13 19:36:52,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:52,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:52,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,976 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:53,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857963080] [2019-10-13 19:36:53,094 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:53,094 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:36:53,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104905256] [2019-10-13 19:36:53,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:36:53,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:53,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:36:53,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:36:53,097 INFO L87 Difference]: Start difference. First operand 1247 states and 1522 transitions. Second operand 10 states. [2019-10-13 19:36:54,311 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:54,579 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:36:54,888 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:55,178 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:56,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:36:56,355 INFO L93 Difference]: Finished difference Result 2904 states and 3892 transitions. [2019-10-13 19:36:56,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:36:56,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-13 19:36:56,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:36:56,369 INFO L225 Difference]: With dead ends: 2904 [2019-10-13 19:36:56,369 INFO L226 Difference]: Without dead ends: 1685 [2019-10-13 19:36:56,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:36:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-10-13 19:36:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1287. [2019-10-13 19:36:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1287 states. [2019-10-13 19:36:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1562 transitions. [2019-10-13 19:36:56,665 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1562 transitions. Word has length 88 [2019-10-13 19:36:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:36:56,665 INFO L462 AbstractCegarLoop]: Abstraction has 1287 states and 1562 transitions. [2019-10-13 19:36:56,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:36:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1562 transitions. [2019-10-13 19:36:56,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:36:56,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:36:56,669 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] [2019-10-13 19:36:56,670 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:36:56,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:36:56,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1309874875, now seen corresponding path program 1 times [2019-10-13 19:36:56,670 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:36:56,671 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870473205] [2019-10-13 19:36:56,671 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:56,671 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:36:56,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:36:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,021 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:36:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:36:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:36:57,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870473205] [2019-10-13 19:36:57,158 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:36:57,158 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:36:57,158 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854967470] [2019-10-13 19:36:57,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:36:57,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:36:57,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:36:57,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:36:57,162 INFO L87 Difference]: Start difference. First operand 1287 states and 1562 transitions. Second operand 12 states. [2019-10-13 19:36:57,735 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:36:58,003 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:58,254 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:59,074 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:59,367 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:36:59,629 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:01,022 INFO L93 Difference]: Finished difference Result 2600 states and 3450 transitions. [2019-10-13 19:37:01,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:01,023 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-10-13 19:37:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:01,031 INFO L225 Difference]: With dead ends: 2600 [2019-10-13 19:37:01,031 INFO L226 Difference]: Without dead ends: 1341 [2019-10-13 19:37:01,035 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:37:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2019-10-13 19:37:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1063. [2019-10-13 19:37:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2019-10-13 19:37:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1258 transitions. [2019-10-13 19:37:01,250 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1258 transitions. Word has length 88 [2019-10-13 19:37:01,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:01,250 INFO L462 AbstractCegarLoop]: Abstraction has 1063 states and 1258 transitions. [2019-10-13 19:37:01,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:37:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1258 transitions. [2019-10-13 19:37:01,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:37:01,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:01,253 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] [2019-10-13 19:37:01,254 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:01,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:01,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1814435734, now seen corresponding path program 1 times [2019-10-13 19:37:01,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:01,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653901921] [2019-10-13 19:37:01,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:01,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:01,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,517 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:01,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653901921] [2019-10-13 19:37:01,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:01,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:01,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280776082] [2019-10-13 19:37:01,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:01,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:01,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:01,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:01,607 INFO L87 Difference]: Start difference. First operand 1063 states and 1258 transitions. Second operand 8 states. [2019-10-13 19:37:02,114 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:04,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:04,751 INFO L93 Difference]: Finished difference Result 2130 states and 2835 transitions. [2019-10-13 19:37:04,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 19:37:04,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-13 19:37:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:04,764 INFO L225 Difference]: With dead ends: 2130 [2019-10-13 19:37:04,764 INFO L226 Difference]: Without dead ends: 2127 [2019-10-13 19:37:04,766 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2019-10-13 19:37:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2019-10-13 19:37:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1652. [2019-10-13 19:37:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1652 states. [2019-10-13 19:37:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1981 transitions. [2019-10-13 19:37:05,129 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1981 transitions. Word has length 92 [2019-10-13 19:37:05,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:05,133 INFO L462 AbstractCegarLoop]: Abstraction has 1652 states and 1981 transitions. [2019-10-13 19:37:05,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1981 transitions. [2019-10-13 19:37:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:37:05,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:05,143 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:05,143 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:05,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:05,144 INFO L82 PathProgramCache]: Analyzing trace with hash -374585462, now seen corresponding path program 1 times [2019-10-13 19:37:05,144 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:05,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324806554] [2019-10-13 19:37:05,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:05,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:05,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,506 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat