/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:39:40,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:39:40,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:39:40,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:39:40,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:39:40,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:39:40,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:39:40,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:39:40,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:39:40,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:39:40,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:39:40,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:39:40,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:39:40,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:39:40,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:39:40,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:39:40,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:39:40,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:39:40,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:39:40,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:39:40,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:39:40,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:39:40,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:39:40,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:39:40,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:39:40,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:39:40,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:39:40,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:39:40,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:39:40,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:39:40,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:39:40,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:39:40,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:39:40,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:39:40,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:39:40,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:39:40,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:39:40,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:39:40,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:39:40,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:39:40,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:39:40,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:39:40,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:39:40,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:39:40,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:39:40,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:39:40,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:39:40,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:39:40,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:39:40,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:39:40,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:39:40,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:39:40,214 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:39:40,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:39:40,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:39:40,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:39:40,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:39:40,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:39:40,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:39:40,215 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:39:40,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:39:40,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:39:40,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:39:40,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:39:40,510 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:39:40,511 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-07 12:39:40,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521779f5c/0cc8bcb1e8fb44f097b485d54da949c5/FLAG3ea7b228c [2020-07-07 12:39:41,117 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:39:41,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-07 12:39:41,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521779f5c/0cc8bcb1e8fb44f097b485d54da949c5/FLAG3ea7b228c [2020-07-07 12:39:41,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521779f5c/0cc8bcb1e8fb44f097b485d54da949c5 [2020-07-07 12:39:41,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:39:41,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:39:41,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:39:41,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:39:41,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:39:41,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:39:41" (1/1) ... [2020-07-07 12:39:41,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98d08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:41, skipping insertion in model container [2020-07-07 12:39:41,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:39:41" (1/1) ... [2020-07-07 12:39:41,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:39:41,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:39:41,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:39:41,952 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:39:42,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:39:42,091 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:39:42,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42 WrapperNode [2020-07-07 12:39:42,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:39:42,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:39:42,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:39:42,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:39:42,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (1/1) ... [2020-07-07 12:39:42,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:39:42,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:39:42,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:39:42,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:39:42,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (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 [2020-07-07 12:39:42,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:39:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:39:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:39:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:39:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:39:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:39:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:39:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:39:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:39:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:39:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:39:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:39:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:39:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:39:42,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:39:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:39:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:39:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:39:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:39:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:39:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:39:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:39:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:39:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:39:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:39:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:39:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:39:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:39:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:39:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:39:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:39:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:39:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:39:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:39:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:39:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:39:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:39:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:39:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:39:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:39:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:39:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:39:43,393 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:39:43,393 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:39:43,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:39:43 BoogieIcfgContainer [2020-07-07 12:39:43,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:39:43,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:39:43,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:39:43,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:39:43,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:39:41" (1/3) ... [2020-07-07 12:39:43,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8be0087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:39:43, skipping insertion in model container [2020-07-07 12:39:43,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:42" (2/3) ... [2020-07-07 12:39:43,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8be0087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:39:43, skipping insertion in model container [2020-07-07 12:39:43,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:39:43" (3/3) ... [2020-07-07 12:39:43,408 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-07-07 12:39:43,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:39:43,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:39:43,441 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:39:43,459 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:39:43,459 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:39:43,459 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:39:43,460 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:39:43,460 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:39:43,460 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:39:43,460 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:39:43,460 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:39:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-07-07 12:39:43,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 12:39:43,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:43,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:43,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:43,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:43,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1278717342, now seen corresponding path program 1 times [2020-07-07 12:39:43,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:43,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507979998] [2020-07-07 12:39:43,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,261 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:44,499 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:44,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507979998] [2020-07-07 12:39:44,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:44,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:39:44,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982644527] [2020-07-07 12:39:44,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:39:44,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:44,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:39:44,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:39:44,538 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-07-07 12:39:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:46,171 INFO L93 Difference]: Finished difference Result 520 states and 619 transitions. [2020-07-07 12:39:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:39:46,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-07 12:39:46,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:46,190 INFO L225 Difference]: With dead ends: 520 [2020-07-07 12:39:46,190 INFO L226 Difference]: Without dead ends: 320 [2020-07-07 12:39:46,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:39:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-07-07 12:39:46,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 274. [2020-07-07 12:39:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-07-07 12:39:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 299 transitions. [2020-07-07 12:39:46,331 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 299 transitions. Word has length 142 [2020-07-07 12:39:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:46,332 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 299 transitions. [2020-07-07 12:39:46,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:39:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 299 transitions. [2020-07-07 12:39:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 12:39:46,337 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:46,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:46,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:39:46,338 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:46,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1976883783, now seen corresponding path program 1 times [2020-07-07 12:39:46,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:46,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974979358] [2020-07-07 12:39:46,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,711 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:46,783 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:46,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974979358] [2020-07-07 12:39:46,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:46,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:39:46,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945440116] [2020-07-07 12:39:46,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:39:46,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:46,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:39:46,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:39:46,787 INFO L87 Difference]: Start difference. First operand 274 states and 299 transitions. Second operand 4 states. [2020-07-07 12:39:47,419 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:48,548 INFO L93 Difference]: Finished difference Result 427 states and 482 transitions. [2020-07-07 12:39:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:39:48,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-07 12:39:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:48,556 INFO L225 Difference]: With dead ends: 427 [2020-07-07 12:39:48,557 INFO L226 Difference]: Without dead ends: 303 [2020-07-07 12:39:48,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:39:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-07-07 12:39:48,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 264. [2020-07-07 12:39:48,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-07-07 12:39:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-07-07 12:39:48,639 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 143 [2020-07-07 12:39:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:48,640 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-07-07 12:39:48,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:39:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-07-07 12:39:48,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-07 12:39:48,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:48,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:48,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:39:48,645 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:48,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1434420260, now seen corresponding path program 1 times [2020-07-07 12:39:48,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:48,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466082915] [2020-07-07 12:39:48,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,075 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:49,206 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:49,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466082915] [2020-07-07 12:39:49,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:49,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:39:49,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886434897] [2020-07-07 12:39:49,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:39:49,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:49,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:39:49,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:39:49,209 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 10 states. [2020-07-07 12:39:49,746 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:50,075 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:50,328 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:39:50,597 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:50,867 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:51,110 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:51,996 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:54,441 INFO L93 Difference]: Finished difference Result 731 states and 852 transitions. [2020-07-07 12:39:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:39:54,442 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-07-07 12:39:54,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:54,448 INFO L225 Difference]: With dead ends: 731 [2020-07-07 12:39:54,448 INFO L226 Difference]: Without dead ends: 577 [2020-07-07 12:39:54,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:39:54,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-07-07 12:39:54,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 478. [2020-07-07 12:39:54,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-07 12:39:54,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 536 transitions. [2020-07-07 12:39:54,650 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 536 transitions. Word has length 156 [2020-07-07 12:39:54,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:54,652 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 536 transitions. [2020-07-07 12:39:54,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:39:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 536 transitions. [2020-07-07 12:39:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-07 12:39:54,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:54,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:39:54,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:39:54,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:54,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:54,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1340372779, now seen corresponding path program 1 times [2020-07-07 12:39:54,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:54,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264309322] [2020-07-07 12:39:54,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,037 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:39:55,231 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:55,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264309322] [2020-07-07 12:39:55,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:55,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:39:55,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930260833] [2020-07-07 12:39:55,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:39:55,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:39:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:39:55,234 INFO L87 Difference]: Start difference. First operand 478 states and 536 transitions. Second operand 14 states. [2020-07-07 12:39:55,669 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:56,002 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:56,313 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:56,570 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:56,829 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:57,064 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:57,750 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:58,886 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:59,199 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:59,608 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:59,987 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:00,261 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:00,512 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:40:00,767 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:01,049 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:01,278 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:01,670 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:02,052 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:40:02,397 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:02,732 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:04,931 INFO L93 Difference]: Finished difference Result 1680 states and 2103 transitions. [2020-07-07 12:40:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 12:40:04,932 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-07-07 12:40:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:04,950 INFO L225 Difference]: With dead ends: 1680 [2020-07-07 12:40:04,950 INFO L226 Difference]: Without dead ends: 1312 [2020-07-07 12:40:04,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 12:40:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-07-07 12:40:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1169. [2020-07-07 12:40:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2020-07-07 12:40:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1381 transitions. [2020-07-07 12:40:05,389 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1381 transitions. Word has length 161 [2020-07-07 12:40:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:05,390 INFO L479 AbstractCegarLoop]: Abstraction has 1169 states and 1381 transitions. [2020-07-07 12:40:05,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:40:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1381 transitions. [2020-07-07 12:40:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 12:40:05,394 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:05,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:05,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:40:05,395 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:05,395 INFO L82 PathProgramCache]: Analyzing trace with hash -277417807, now seen corresponding path program 1 times [2020-07-07 12:40:05,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:05,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939147253] [2020-07-07 12:40:05,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,702 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:40:05,864 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:05,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939147253] [2020-07-07 12:40:05,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:05,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:40:05,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883923249] [2020-07-07 12:40:05,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:40:05,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:05,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:40:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:40:05,867 INFO L87 Difference]: Start difference. First operand 1169 states and 1381 transitions. Second operand 6 states. [2020-07-07 12:40:06,579 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:09,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:09,097 INFO L93 Difference]: Finished difference Result 2774 states and 3444 transitions. [2020-07-07 12:40:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 12:40:09,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-07-07 12:40:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:09,109 INFO L225 Difference]: With dead ends: 2774 [2020-07-07 12:40:09,109 INFO L226 Difference]: Without dead ends: 1715 [2020-07-07 12:40:09,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:40:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2020-07-07 12:40:09,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1588. [2020-07-07 12:40:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1588 states. [2020-07-07 12:40:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 1850 transitions. [2020-07-07 12:40:09,578 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 1850 transitions. Word has length 166 [2020-07-07 12:40:09,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:09,578 INFO L479 AbstractCegarLoop]: Abstraction has 1588 states and 1850 transitions. [2020-07-07 12:40:09,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:40:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 1850 transitions. [2020-07-07 12:40:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-07 12:40:09,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:09,584 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:09,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:40:09,585 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash -426920362, now seen corresponding path program 1 times [2020-07-07 12:40:09,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:09,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136258315] [2020-07-07 12:40:09,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,912 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:40:10,074 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:10,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136258315] [2020-07-07 12:40:10,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:10,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:40:10,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34113761] [2020-07-07 12:40:10,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:40:10,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:10,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:40:10,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:40:10,077 INFO L87 Difference]: Start difference. First operand 1588 states and 1850 transitions. Second operand 11 states. [2020-07-07 12:40:10,613 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:12,720 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:12,971 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:13,228 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:13,532 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:13,781 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:14,623 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:14,848 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:15,158 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:15,836 INFO L93 Difference]: Finished difference Result 1778 states and 2134 transitions. [2020-07-07 12:40:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 12:40:15,837 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 209 [2020-07-07 12:40:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:15,846 INFO L225 Difference]: With dead ends: 1778 [2020-07-07 12:40:15,846 INFO L226 Difference]: Without dead ends: 1775 [2020-07-07 12:40:15,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-07-07 12:40:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-07-07 12:40:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1597. [2020-07-07 12:40:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1597 states. [2020-07-07 12:40:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1858 transitions. [2020-07-07 12:40:16,465 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1858 transitions. Word has length 209 [2020-07-07 12:40:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:16,466 INFO L479 AbstractCegarLoop]: Abstraction has 1597 states and 1858 transitions. [2020-07-07 12:40:16,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:40:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1858 transitions. [2020-07-07 12:40:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-07 12:40:16,475 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:16,476 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:16,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:40:16,476 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:16,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2049626287, now seen corresponding path program 1 times [2020-07-07 12:40:16,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:16,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708832455] [2020-07-07 12:40:16,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,780 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:40:17,392 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:17,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708832455] [2020-07-07 12:40:17,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:17,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-07 12:40:17,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154390837] [2020-07-07 12:40:17,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-07 12:40:17,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:17,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-07 12:40:17,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:40:17,395 INFO L87 Difference]: Start difference. First operand 1597 states and 1858 transitions. Second operand 19 states. [2020-07-07 12:40:18,079 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 12:40:18,867 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:20,349 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-07 12:40:20,845 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-07-07 12:40:21,349 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 196 [2020-07-07 12:40:21,850 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-07-07 12:40:22,101 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:22,389 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:40:22,898 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-07 12:40:23,169 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-07-07 12:40:23,600 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-07-07 12:40:23,872 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:24,164 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:24,430 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:26,575 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-07 12:40:27,124 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-07-07 12:40:27,625 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-07-07 12:40:28,153 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-07-07 12:40:28,706 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-07-07 12:40:29,204 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-07-07 12:40:29,649 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-07-07 12:40:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:32,164 INFO L93 Difference]: Finished difference Result 3652 states and 4609 transitions. [2020-07-07 12:40:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-07-07 12:40:32,165 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 269 [2020-07-07 12:40:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:32,180 INFO L225 Difference]: With dead ends: 3652 [2020-07-07 12:40:32,181 INFO L226 Difference]: Without dead ends: 2165 [2020-07-07 12:40:32,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=660, Invalid=2880, Unknown=0, NotChecked=0, Total=3540 [2020-07-07 12:40:32,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2020-07-07 12:40:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1781. [2020-07-07 12:40:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-07-07 12:40:32,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2046 transitions. [2020-07-07 12:40:32,792 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2046 transitions. Word has length 269 [2020-07-07 12:40:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:32,792 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2046 transitions. [2020-07-07 12:40:32,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-07 12:40:32,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2046 transitions. [2020-07-07 12:40:32,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-07-07 12:40:32,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:32,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:32,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:40:32,801 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1359047830, now seen corresponding path program 1 times [2020-07-07 12:40:32,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:32,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856597046] [2020-07-07 12:40:32,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,096 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:40:33,476 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:33,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856597046] [2020-07-07 12:40:33,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:33,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 12:40:33,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600234454] [2020-07-07 12:40:33,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 12:40:33,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:33,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 12:40:33,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:40:33,478 INFO L87 Difference]: Start difference. First operand 1781 states and 2046 transitions. Second operand 15 states. [2020-07-07 12:40:34,005 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:34,241 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:34,486 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:34,713 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:34,930 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:35,829 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:36,069 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:36,314 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:36,630 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:36,860 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:38,655 INFO L93 Difference]: Finished difference Result 3367 states and 4028 transitions. [2020-07-07 12:40:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 12:40:38,662 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 290 [2020-07-07 12:40:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:38,672 INFO L225 Difference]: With dead ends: 3367 [2020-07-07 12:40:38,672 INFO L226 Difference]: Without dead ends: 1696 [2020-07-07 12:40:38,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-07 12:40:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-07-07 12:40:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1464. [2020-07-07 12:40:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1464 states. [2020-07-07 12:40:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1661 transitions. [2020-07-07 12:40:39,252 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1661 transitions. Word has length 290 [2020-07-07 12:40:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:39,253 INFO L479 AbstractCegarLoop]: Abstraction has 1464 states and 1661 transitions. [2020-07-07 12:40:39,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 12:40:39,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1661 transitions. [2020-07-07 12:40:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-07 12:40:39,257 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:39,258 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:39,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:40:39,258 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:39,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:39,259 INFO L82 PathProgramCache]: Analyzing trace with hash 722441679, now seen corresponding path program 1 times [2020-07-07 12:40:39,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:39,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688819274] [2020-07-07 12:40:39,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,558 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:40:39,820 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:39,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688819274] [2020-07-07 12:40:39,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:39,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:40:39,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103827930] [2020-07-07 12:40:39,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:40:39,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:39,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:40:39,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:40:39,822 INFO L87 Difference]: Start difference. First operand 1464 states and 1661 transitions. Second operand 14 states. [2020-07-07 12:40:40,239 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:40,891 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:41,583 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:41,882 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:42,147 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:42,391 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:42,616 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:42,848 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:43,084 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:43,342 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:43,623 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:43,877 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:46,429 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:46,675 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:48,003 INFO L93 Difference]: Finished difference Result 3704 states and 4580 transitions. [2020-07-07 12:40:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-07 12:40:48,004 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 295 [2020-07-07 12:40:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:48,018 INFO L225 Difference]: With dead ends: 3704 [2020-07-07 12:40:48,019 INFO L226 Difference]: Without dead ends: 2580 [2020-07-07 12:40:48,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=617, Invalid=1639, Unknown=0, NotChecked=0, Total=2256 [2020-07-07 12:40:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2020-07-07 12:40:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 1923. [2020-07-07 12:40:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2020-07-07 12:40:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2216 transitions. [2020-07-07 12:40:48,666 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2216 transitions. Word has length 295 [2020-07-07 12:40:48,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:48,667 INFO L479 AbstractCegarLoop]: Abstraction has 1923 states and 2216 transitions. [2020-07-07 12:40:48,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:40:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2216 transitions. [2020-07-07 12:40:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-07-07 12:40:48,673 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:48,674 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:40:48,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:40:48,674 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:48,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:48,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1293487728, now seen corresponding path program 2 times [2020-07-07 12:40:48,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:48,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740690732] [2020-07-07 12:40:48,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:40:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:40:49,126 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:49,126 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:40:49,126 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:40:49,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:40:49,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:40:49 BoogieIcfgContainer [2020-07-07 12:40:49,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:40:49,171 INFO L168 Benchmark]: Toolchain (without parser) took 67706.36 ms. Allocated memory was 143.7 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 99.8 MB in the beginning and 636.3 MB in the end (delta: -536.5 MB). Peak memory consumption was 648.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,172 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 143.7 MB. Free memory was 119.1 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.75 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.6 MB in the beginning and 169.3 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,173 INFO L168 Benchmark]: Boogie Preprocessor took 91.57 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,174 INFO L168 Benchmark]: RCFGBuilder took 1215.98 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 173.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,174 INFO L168 Benchmark]: TraceAbstraction took 65768.18 ms. Allocated memory was 232.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 173.3 MB in the beginning and 636.3 MB in the end (delta: -463.0 MB). Peak memory consumption was 632.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:49,177 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 143.7 MB. Free memory was 119.1 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 625.75 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.6 MB in the beginning and 169.3 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.57 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1215.98 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 165.2 MB in the beginning and 173.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 65768.18 ms. Allocated memory was 232.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 173.3 MB in the beginning and 636.3 MB in the end (delta: -463.0 MB). Peak memory consumption was 632.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L530] FCALL select_helpers() [L531] FCALL select_features() [L532] CALL, EXPR valid_product() [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L532] RET, EXPR valid_product() [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L536] FCALL setup() [L537] CALL runTest() [L516] CALL test() [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) [L890] CALL waterRise() [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 [L890] RET waterRise() [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L636] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L597] CALL, EXPR isHighWaterLevel() [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L738] CALL, EXPR isHighWaterSensorDry() [L854] int retValue_acc ; [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); [L738] RET, EXPR isHighWaterSensorDry() [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L597] RET, EXPR isHighWaterLevel() [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L601] CALL activatePump() [L651] int tmp ; [L655] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L655] RET, EXPR isMethaneAlarm() [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L661] CALL activatePump__wrappee__highWaterSensor() [L646] pumpRunning = 1 [L661] RET activatePump__wrappee__highWaterSensor() [L601] RET activatePump() [L636] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L925] RET timeShift() [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND TRUE \read(pumpRunning) [L565] CALL lowerWaterLevel() [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 [L565] RET lowerWaterLevel() [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND TRUE \read(pumpRunning) [L623] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L623] RET, EXPR isMethaneAlarm() [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L631] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND FALSE !(! pumpRunning) [L610] FCALL processEnvironment__wrappee__base() [L631] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L925] RET timeShift() [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND TRUE \read(pumpRunning) [L565] CALL lowerWaterLevel() [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 [L565] RET lowerWaterLevel() [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND TRUE \read(pumpRunning) [L623] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L623] RET, EXPR isMethaneAlarm() [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L631] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND FALSE !(! pumpRunning) [L610] FCALL processEnvironment__wrappee__base() [L631] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L53] CALL, EXPR isPumpRunning() [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L439] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 637 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 55.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2477 SDtfs, 8220 SDslu, 6491 SDs, 0 SdLazy, 15846 SolverSat, 3123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 311 SyntacticMatches, 8 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1998 ImplicationChecksByTransitivity, 26.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1923occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 1905 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...