/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:00:31,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:00:31,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:00:31,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:00:31,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:00:31,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:00:31,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:00:31,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:00:31,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:00:31,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:00:31,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:00:31,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:00:31,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:00:31,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:00:31,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:00:31,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:00:31,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:00:31,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:00:31,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:00:31,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:00:31,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:00:31,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:00:31,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:00:31,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:00:31,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:00:31,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:00:31,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:00:31,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:00:31,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:00:31,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:00:31,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:00:31,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:00:31,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:00:31,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:00:31,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:00:31,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:00:31,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:00:31,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:00:31,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:00:31,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:00:31,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:00:31,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:00:31,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:00:31,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:00:31,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:00:31,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:00:31,231 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:00:31,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:00:31,231 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:00:31,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:00:31,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:00:31,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:00:31,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:00:31,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:00:31,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:00:31,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:00:31,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:00:31,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:00:31,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:00:31,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:00:31,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:00:31,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:00:31,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:00:31,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:00:31,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:00:31,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:00:31,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:00:31,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:00:31,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:00:31,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:00:31,546 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:00:31,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2019-11-06 22:00:31,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7eb1c26/daaa4a85f2fa480081c57e54f7b0a201/FLAGb0c43de3f [2019-11-06 22:00:32,158 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:00:32,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product49.cil.c [2019-11-06 22:00:32,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7eb1c26/daaa4a85f2fa480081c57e54f7b0a201/FLAGb0c43de3f [2019-11-06 22:00:32,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7eb1c26/daaa4a85f2fa480081c57e54f7b0a201 [2019-11-06 22:00:32,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:00:32,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:00:32,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:00:32,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:00:32,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:00:32,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:32" (1/1) ... [2019-11-06 22:00:32,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404100ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:32, skipping insertion in model container [2019-11-06 22:00:32,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:32" (1/1) ... [2019-11-06 22:00:32,488 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:00:32,553 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:00:33,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:00:33,026 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:00:33,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:00:33,157 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:00:33,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33 WrapperNode [2019-11-06 22:00:33,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:00:33,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:00:33,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:00:33,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:00:33,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... [2019-11-06 22:00:33,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:00:33,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:00:33,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:00:33,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:00:33,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:00:33,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:00:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:00:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:00:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:00:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:00:33,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:00:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:00:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:00:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:00:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:00:33,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:00:33,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:00:33,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:00:33,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:00:33,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:00:33,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-11-06 22:00:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:00:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:00:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:00:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:00:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:00:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:00:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:00:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:00:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:00:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:00:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:00:33,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:00:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:00:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:00:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:00:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:00:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:00:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:00:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:00:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:00:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:00:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:00:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:00:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:00:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:00:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:00:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-11-06 22:00:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:00:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:00:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:00:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:00:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:00:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:00:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:00:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:00:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:00:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:00:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:00:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:00:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:00:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:00:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:00:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:00:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:00:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:00:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:00:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:00:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:00:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:00:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:00:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:00:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:00:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:00:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:00:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:00:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:00:34,565 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:00:34,565 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:00:34,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:34 BoogieIcfgContainer [2019-11-06 22:00:34,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:00:34,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:00:34,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:00:34,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:00:34,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:32" (1/3) ... [2019-11-06 22:00:34,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f73a79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:34, skipping insertion in model container [2019-11-06 22:00:34,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:33" (2/3) ... [2019-11-06 22:00:34,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f73a79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:34, skipping insertion in model container [2019-11-06 22:00:34,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:34" (3/3) ... [2019-11-06 22:00:34,575 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2019-11-06 22:00:34,584 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:00:34,593 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:00:34,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:00:34,641 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:00:34,641 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:00:34,641 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:00:34,641 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:00:34,642 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:00:34,642 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:00:34,642 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:00:34,642 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:00:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-11-06 22:00:34,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 22:00:34,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:34,685 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:34,687 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:34,694 INFO L82 PathProgramCache]: Analyzing trace with hash 2107173997, now seen corresponding path program 1 times [2019-11-06 22:00:34,704 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:34,705 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872323620] [2019-11-06 22:00:34,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,459 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:35,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872323620] [2019-11-06 22:00:35,583 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:35,584 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:00:35,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421285409] [2019-11-06 22:00:35,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:00:35,598 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:35,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:00:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:00:35,616 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2019-11-06 22:00:36,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:36,747 INFO L93 Difference]: Finished difference Result 309 states and 402 transitions. [2019-11-06 22:00:36,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:00:36,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-11-06 22:00:36,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:36,765 INFO L225 Difference]: With dead ends: 309 [2019-11-06 22:00:36,765 INFO L226 Difference]: Without dead ends: 166 [2019-11-06 22:00:36,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:00:36,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-06 22:00:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 134. [2019-11-06 22:00:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-06 22:00:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2019-11-06 22:00:36,862 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 52 [2019-11-06 22:00:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:36,862 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2019-11-06 22:00:36,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:00:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2019-11-06 22:00:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-06 22:00:36,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:36,866 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:36,867 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:36,867 INFO L82 PathProgramCache]: Analyzing trace with hash -167379318, now seen corresponding path program 1 times [2019-11-06 22:00:36,868 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:36,868 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543996182] [2019-11-06 22:00:36,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,189 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:37,252 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543996182] [2019-11-06 22:00:37,252 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:37,252 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:00:37,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050117880] [2019-11-06 22:00:37,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:00:37,257 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:37,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:00:37,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:00:37,258 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 4 states. [2019-11-06 22:00:37,791 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:38,650 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2019-11-06 22:00:38,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 22:00:38,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-11-06 22:00:38,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:38,655 INFO L225 Difference]: With dead ends: 242 [2019-11-06 22:00:38,655 INFO L226 Difference]: Without dead ends: 150 [2019-11-06 22:00:38,657 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:00:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-06 22:00:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2019-11-06 22:00:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-06 22:00:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2019-11-06 22:00:38,690 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 53 [2019-11-06 22:00:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:38,690 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2019-11-06 22:00:38,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:00:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2019-11-06 22:00:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-06 22:00:38,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:38,693 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:38,693 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1142127631, now seen corresponding path program 1 times [2019-11-06 22:00:38,694 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:38,694 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091358374] [2019-11-06 22:00:38,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,048 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:39,099 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091358374] [2019-11-06 22:00:39,099 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:39,099 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:00:39,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387037363] [2019-11-06 22:00:39,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:00:39,100 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:39,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:00:39,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:00:39,101 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 4 states. [2019-11-06 22:00:39,443 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:40,175 INFO L93 Difference]: Finished difference Result 251 states and 307 transitions. [2019-11-06 22:00:40,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 22:00:40,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-11-06 22:00:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:40,179 INFO L225 Difference]: With dead ends: 251 [2019-11-06 22:00:40,179 INFO L226 Difference]: Without dead ends: 150 [2019-11-06 22:00:40,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:00:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-06 22:00:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2019-11-06 22:00:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-06 22:00:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2019-11-06 22:00:40,214 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 57 [2019-11-06 22:00:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:40,215 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2019-11-06 22:00:40,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:00:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2019-11-06 22:00:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-06 22:00:40,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:40,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:40,218 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:40,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:40,219 INFO L82 PathProgramCache]: Analyzing trace with hash -410485180, now seen corresponding path program 1 times [2019-11-06 22:00:40,219 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:40,219 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144033814] [2019-11-06 22:00:40,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,568 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:40,657 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144033814] [2019-11-06 22:00:40,657 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:40,658 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:00:40,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10050199] [2019-11-06 22:00:40,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:00:40,659 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:40,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:00:40,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:00:40,659 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand 6 states. [2019-11-06 22:00:41,072 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:42,358 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:43,150 INFO L93 Difference]: Finished difference Result 355 states and 437 transitions. [2019-11-06 22:00:43,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:00:43,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2019-11-06 22:00:43,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:43,155 INFO L225 Difference]: With dead ends: 355 [2019-11-06 22:00:43,155 INFO L226 Difference]: Without dead ends: 254 [2019-11-06 22:00:43,156 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:00:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-11-06 22:00:43,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 213. [2019-11-06 22:00:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-11-06 22:00:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 243 transitions. [2019-11-06 22:00:43,208 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 243 transitions. Word has length 70 [2019-11-06 22:00:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:43,209 INFO L462 AbstractCegarLoop]: Abstraction has 213 states and 243 transitions. [2019-11-06 22:00:43,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:00:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 243 transitions. [2019-11-06 22:00:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-06 22:00:43,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:43,211 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:43,211 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:43,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1731142584, now seen corresponding path program 1 times [2019-11-06 22:00:43,212 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:43,212 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213800183] [2019-11-06 22:00:43,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,525 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:43,638 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213800183] [2019-11-06 22:00:43,638 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:43,639 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:43,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443216358] [2019-11-06 22:00:43,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:43,641 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:43,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:43,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:43,643 INFO L87 Difference]: Start difference. First operand 213 states and 243 transitions. Second operand 8 states. [2019-11-06 22:00:44,119 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:45,419 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:45,743 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:46,029 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:46,304 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:47,084 INFO L93 Difference]: Finished difference Result 561 states and 700 transitions. [2019-11-06 22:00:47,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 22:00:47,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-11-06 22:00:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:47,088 INFO L225 Difference]: With dead ends: 561 [2019-11-06 22:00:47,089 INFO L226 Difference]: Without dead ends: 372 [2019-11-06 22:00:47,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:00:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-11-06 22:00:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 332. [2019-11-06 22:00:47,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-11-06 22:00:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 387 transitions. [2019-11-06 22:00:47,164 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 387 transitions. Word has length 84 [2019-11-06 22:00:47,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:47,164 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 387 transitions. [2019-11-06 22:00:47,164 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 387 transitions. [2019-11-06 22:00:47,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 22:00:47,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:47,167 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:47,167 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:47,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:47,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1024694334, now seen corresponding path program 1 times [2019-11-06 22:00:47,168 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:47,168 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136869087] [2019-11-06 22:00:47,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,480 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:47,614 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136869087] [2019-11-06 22:00:47,614 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:47,615 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:00:47,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157281392] [2019-11-06 22:00:47,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:00:47,616 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:47,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:00:47,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:00:47,616 INFO L87 Difference]: Start difference. First operand 332 states and 387 transitions. Second operand 10 states. [2019-11-06 22:00:48,080 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:49,522 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:49,878 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:50,154 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:50,410 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:50,814 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:52,102 INFO L93 Difference]: Finished difference Result 763 states and 968 transitions. [2019-11-06 22:00:52,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:00:52,103 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-06 22:00:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:52,107 INFO L225 Difference]: With dead ends: 763 [2019-11-06 22:00:52,108 INFO L226 Difference]: Without dead ends: 563 [2019-11-06 22:00:52,109 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:00:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-11-06 22:00:52,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 495. [2019-11-06 22:00:52,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-11-06 22:00:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 586 transitions. [2019-11-06 22:00:52,200 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 586 transitions. Word has length 88 [2019-11-06 22:00:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:52,200 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 586 transitions. [2019-11-06 22:00:52,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:00:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 586 transitions. [2019-11-06 22:00:52,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 22:00:52,202 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:52,203 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:52,203 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:52,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:52,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1947377917, now seen corresponding path program 1 times [2019-11-06 22:00:52,204 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:52,204 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104997630] [2019-11-06 22:00:52,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,463 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:52,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:52,560 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104997630] [2019-11-06 22:00:52,560 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:52,560 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:52,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131063842] [2019-11-06 22:00:52,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:52,561 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:52,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:52,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:52,562 INFO L87 Difference]: Start difference. First operand 495 states and 586 transitions. Second operand 8 states. [2019-11-06 22:00:53,482 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:53,724 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:53,983 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:54,994 INFO L93 Difference]: Finished difference Result 918 states and 1129 transitions. [2019-11-06 22:00:55,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:00:55,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2019-11-06 22:00:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:55,006 INFO L225 Difference]: With dead ends: 918 [2019-11-06 22:00:55,007 INFO L226 Difference]: Without dead ends: 551 [2019-11-06 22:00:55,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:55,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-11-06 22:00:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 495. [2019-11-06 22:00:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-11-06 22:00:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 585 transitions. [2019-11-06 22:00:55,129 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 585 transitions. Word has length 88 [2019-11-06 22:00:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:55,129 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 585 transitions. [2019-11-06 22:00:55,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 585 transitions. [2019-11-06 22:00:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 22:00:55,131 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:55,132 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:55,132 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:55,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1503583877, now seen corresponding path program 1 times [2019-11-06 22:00:55,133 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:55,133 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776622522] [2019-11-06 22:00:55,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,437 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:55,602 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776622522] [2019-11-06 22:00:55,603 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:55,603 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:00:55,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425034361] [2019-11-06 22:00:55,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:00:55,604 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:55,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:00:55,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:55,609 INFO L87 Difference]: Start difference. First operand 495 states and 585 transitions. Second operand 12 states. [2019-11-06 22:00:56,366 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:56,659 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:56,920 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:57,698 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:57,986 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:00:58,283 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:58,545 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:59,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:59,853 INFO L93 Difference]: Finished difference Result 1011 states and 1246 transitions. [2019-11-06 22:00:59,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 22:00:59,854 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2019-11-06 22:00:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:59,863 INFO L225 Difference]: With dead ends: 1011 [2019-11-06 22:00:59,866 INFO L226 Difference]: Without dead ends: 540 [2019-11-06 22:00:59,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-11-06 22:00:59,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-11-06 22:01:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 495. [2019-11-06 22:01:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-11-06 22:01:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 583 transitions. [2019-11-06 22:01:00,019 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 583 transitions. Word has length 88 [2019-11-06 22:01:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:01:00,020 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 583 transitions. [2019-11-06 22:01:00,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:01:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 583 transitions. [2019-11-06 22:01:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-11-06 22:01:00,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:01:00,025 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:01:00,025 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:01:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:01:00,025 INFO L82 PathProgramCache]: Analyzing trace with hash -254991864, now seen corresponding path program 1 times [2019-11-06 22:01:00,026 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:01:00,027 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331231148] [2019-11-06 22:01:00,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:01:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,404 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:01:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:01:00,521 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331231148] [2019-11-06 22:01:00,521 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:01:00,521 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-06 22:01:00,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716001087] [2019-11-06 22:01:00,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 22:01:00,522 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:01:00,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:01:00,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-11-06 22:01:00,523 INFO L87 Difference]: Start difference. First operand 495 states and 583 transitions. Second operand 13 states. [2019-11-06 22:01:01,277 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:01:01,537 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:01:01,792 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:01:02,823 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:01:03,601 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:01:03,944 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:01:04,250 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:01:05,174 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:01:05,500 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:01:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:01:05,835 INFO L93 Difference]: Finished difference Result 1005 states and 1206 transitions. [2019-11-06 22:01:05,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-06 22:01:05,835 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2019-11-06 22:01:05,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:01:05,839 INFO L225 Difference]: With dead ends: 1005 [2019-11-06 22:01:05,839 INFO L226 Difference]: Without dead ends: 534 [2019-11-06 22:01:05,841 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2019-11-06 22:01:05,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-11-06 22:01:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 495. [2019-11-06 22:01:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-11-06 22:01:05,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 571 transitions. [2019-11-06 22:01:05,915 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 571 transitions. Word has length 89 [2019-11-06 22:01:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:01:05,916 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 571 transitions. [2019-11-06 22:01:05,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-06 22:01:05,916 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 571 transitions. [2019-11-06 22:01:05,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-06 22:01:05,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:01:05,920 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:01:05,920 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:01:05,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:01:05,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2112238304, now seen corresponding path program 1 times [2019-11-06 22:01:05,920 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:01:05,921 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020092764] [2019-11-06 22:01:05,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:01:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,197 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:01:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 22:01:06,499 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020092764] [2019-11-06 22:01:06,499 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503970681] [2019-11-06 22:01:06,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:01:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:01:06,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-06 22:01:06,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:01:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 22:01:06,994 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:01:06,994 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2019-11-06 22:01:06,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487443161] [2019-11-06 22:01:06,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-06 22:01:06,996 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:01:06,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-06 22:01:06,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:01:06,997 INFO L87 Difference]: Start difference. First operand 495 states and 571 transitions. Second operand 19 states. [2019-11-06 22:01:07,910 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:01:08,780 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:01:09,114 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:01:09,574 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189