/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:39:29,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:39:29,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:39:29,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:39:29,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:39:29,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:39:29,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:39:29,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:39:29,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:39:29,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:39:29,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:39:29,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:39:29,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:39:29,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:39:29,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:39:29,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:39:29,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:39:29,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:39:29,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:39:29,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:39:29,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:39:29,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:39:29,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:39:29,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:39:29,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:39:29,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:39:29,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:39:29,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:39:29,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:39:29,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:39:29,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:39:29,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:39:29,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:39:29,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:39:29,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:39:29,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:39:29,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:39:29,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:39:29,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:39:29,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:39:29,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:39:29,285 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 12:39:29,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:39:29,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:39:29,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:39:29,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:39:29,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:39:29,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:39:29,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:39:29,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:39:29,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:39:29,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:39:29,305 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:39:29,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:39:29,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:39:29,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:39:29,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:39:29,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:39:29,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:39:29,306 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:39:29,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:39:29,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:39:29,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:39:29,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:39:29,585 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:39:29,586 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-07-07 12:39:29,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1837e5b2b/25213ea2a6a145e98f8f3b74b9d4de51/FLAGc7dee5b8a [2020-07-07 12:39:30,150 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:39:30,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-07-07 12:39:30,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1837e5b2b/25213ea2a6a145e98f8f3b74b9d4de51/FLAGc7dee5b8a [2020-07-07 12:39:30,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1837e5b2b/25213ea2a6a145e98f8f3b74b9d4de51 [2020-07-07 12:39:30,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:39:30,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:39:30,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:39:30,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:39:30,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:39:30,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:39:30" (1/1) ... [2020-07-07 12:39:30,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba2ccb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:30, skipping insertion in model container [2020-07-07 12:39:30,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:39:30" (1/1) ... [2020-07-07 12:39:30,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:39:30,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:39:31,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:39:31,030 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:39:31,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:39:31,151 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:39:31,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31 WrapperNode [2020-07-07 12:39:31,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:39:31,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:39:31,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:39:31,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:39:31,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (1/1) ... [2020-07-07 12:39:31,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:39:31,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:39:31,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:39:31,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:39:31,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (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 12:39:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:39:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:39:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:39:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:39:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:39:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:39:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:39:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:39:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:39:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:39:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:39:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:39:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:39:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:39:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:39:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:39:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:39:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:39:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:39:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:39:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:39:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:39:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:39:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:39:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:39:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:39:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:39:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:39:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:39:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:39:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:39:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:39:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:39:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:39:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:39:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:39:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:39:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:39:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:39:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:39:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:39:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:39:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:39:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:39:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:39:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:39:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:39:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:39:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:39:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:39:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:39:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:39:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:39:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:39:32,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:39:32,361 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:39:32,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:39:32 BoogieIcfgContainer [2020-07-07 12:39:32,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:39:32,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:39:32,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:39:32,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:39:32,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:39:30" (1/3) ... [2020-07-07 12:39:32,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2a3c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:39:32, skipping insertion in model container [2020-07-07 12:39:32,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:39:31" (2/3) ... [2020-07-07 12:39:32,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2a3c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:39:32, skipping insertion in model container [2020-07-07 12:39:32,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:39:32" (3/3) ... [2020-07-07 12:39:32,376 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-07-07 12:39:32,384 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:39:32,393 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:39:32,404 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:39:32,422 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:39:32,423 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:39:32,423 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:39:32,423 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:39:32,423 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:39:32,423 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:39:32,424 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:39:32,424 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:39:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-07-07 12:39:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 12:39:32,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:32,467 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 12:39:32,468 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:32,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:32,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1304799548, now seen corresponding path program 1 times [2020-07-07 12:39:32,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:32,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545907378] [2020-07-07 12:39:32,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,203 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:33,446 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 12:39:33,447 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:33,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545907378] [2020-07-07 12:39:33,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:33,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:39:33,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430800327] [2020-07-07 12:39:33,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:39:33,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:33,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:39:33,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:39:33,482 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-07-07 12:39:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:34,908 INFO L93 Difference]: Finished difference Result 511 states and 609 transitions. [2020-07-07 12:39:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:39:34,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-07 12:39:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:34,927 INFO L225 Difference]: With dead ends: 511 [2020-07-07 12:39:34,927 INFO L226 Difference]: Without dead ends: 315 [2020-07-07 12:39:34,932 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 12:39:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-07 12:39:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 270. [2020-07-07 12:39:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-07 12:39:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2020-07-07 12:39:35,069 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 142 [2020-07-07 12:39:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:35,070 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 295 transitions. [2020-07-07 12:39:35,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:39:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 295 transitions. [2020-07-07 12:39:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 12:39:35,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:35,077 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 12:39:35,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:39:35,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:35,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1109681535, now seen corresponding path program 1 times [2020-07-07 12:39:35,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:35,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448307633] [2020-07-07 12:39:35,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,432 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:35,498 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 12:39:35,498 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:35,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448307633] [2020-07-07 12:39:35,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:35,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:39:35,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198238496] [2020-07-07 12:39:35,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:39:35,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:35,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:39:35,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:39:35,501 INFO L87 Difference]: Start difference. First operand 270 states and 295 transitions. Second operand 4 states. [2020-07-07 12:39:36,086 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:37,055 INFO L93 Difference]: Finished difference Result 422 states and 476 transitions. [2020-07-07 12:39:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:39:37,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-07 12:39:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:37,061 INFO L225 Difference]: With dead ends: 422 [2020-07-07 12:39:37,061 INFO L226 Difference]: Without dead ends: 298 [2020-07-07 12:39:37,063 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 12:39:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-07 12:39:37,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 260. [2020-07-07 12:39:37,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-07-07 12:39:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 282 transitions. [2020-07-07 12:39:37,127 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 282 transitions. Word has length 143 [2020-07-07 12:39:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:37,128 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 282 transitions. [2020-07-07 12:39:37,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:39:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 282 transitions. [2020-07-07 12:39:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-07 12:39:37,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:37,130 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] [2020-07-07 12:39:37,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:39:37,131 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:37,131 INFO L82 PathProgramCache]: Analyzing trace with hash 237546183, now seen corresponding path program 1 times [2020-07-07 12:39:37,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:37,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116868852] [2020-07-07 12:39:37,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,464 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:37,627 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 12:39:37,627 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:37,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116868852] [2020-07-07 12:39:37,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:37,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:39:37,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633676937] [2020-07-07 12:39:37,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:39:37,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:37,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:39:37,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:39:37,631 INFO L87 Difference]: Start difference. First operand 260 states and 282 transitions. Second operand 9 states. [2020-07-07 12:39:38,112 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:38,477 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:38,746 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:38,980 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:39,210 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:39,432 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:40,336 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:42,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:42,591 INFO L93 Difference]: Finished difference Result 695 states and 801 transitions. [2020-07-07 12:39:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:39:42,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-07 12:39:42,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:42,598 INFO L225 Difference]: With dead ends: 695 [2020-07-07 12:39:42,598 INFO L226 Difference]: Without dead ends: 545 [2020-07-07 12:39:42,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:39:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-07-07 12:39:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 474. [2020-07-07 12:39:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-07-07 12:39:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 532 transitions. [2020-07-07 12:39:42,760 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 532 transitions. Word has length 152 [2020-07-07 12:39:42,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:42,761 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 532 transitions. [2020-07-07 12:39:42,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:39:42,761 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 532 transitions. [2020-07-07 12:39:42,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-07 12:39:42,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:42,764 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 12:39:42,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:39:42,764 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:42,765 INFO L82 PathProgramCache]: Analyzing trace with hash 720148809, now seen corresponding path program 1 times [2020-07-07 12:39:42,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:42,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749630409] [2020-07-07 12:39:42,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,084 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:43,273 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 12:39:43,274 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:43,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749630409] [2020-07-07 12:39:43,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:43,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 12:39:43,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112220420] [2020-07-07 12:39:43,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 12:39:43,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:43,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 12:39:43,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-07-07 12:39:43,277 INFO L87 Difference]: Start difference. First operand 474 states and 532 transitions. Second operand 14 states. [2020-07-07 12:39:43,967 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:44,313 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:44,556 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:44,804 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:45,044 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:45,285 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:45,909 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:39:47,089 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:47,452 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:47,838 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:48,127 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:39:48,374 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:48,602 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:48,863 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:39:49,121 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:49,349 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:49,714 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:50,048 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:39:50,333 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:39:50,706 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:39:52,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:52,748 INFO L93 Difference]: Finished difference Result 1660 states and 2079 transitions. [2020-07-07 12:39:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 12:39:52,749 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-07-07 12:39:52,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:52,759 INFO L225 Difference]: With dead ends: 1660 [2020-07-07 12:39:52,759 INFO L226 Difference]: Without dead ends: 1296 [2020-07-07 12:39:52,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 12:39:52,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-07-07 12:39:53,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1157. [2020-07-07 12:39:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-07-07 12:39:53,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1369 transitions. [2020-07-07 12:39:53,103 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1369 transitions. Word has length 161 [2020-07-07 12:39:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:53,103 INFO L479 AbstractCegarLoop]: Abstraction has 1157 states and 1369 transitions. [2020-07-07 12:39:53,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 12:39:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1369 transitions. [2020-07-07 12:39:53,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 12:39:53,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:53,108 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 12:39:53,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:39:53,109 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:53,109 INFO L82 PathProgramCache]: Analyzing trace with hash 615515948, now seen corresponding path program 1 times [2020-07-07 12:39:53,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:53,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975720838] [2020-07-07 12:39:53,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,425 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:53,580 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 12:39:53,580 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:53,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975720838] [2020-07-07 12:39:53,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:53,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:39:53,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438565822] [2020-07-07 12:39:53,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:39:53,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:53,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:39:53,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:39:53,583 INFO L87 Difference]: Start difference. First operand 1157 states and 1369 transitions. Second operand 6 states. [2020-07-07 12:39:54,275 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:39:56,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:39:56,636 INFO L93 Difference]: Finished difference Result 2734 states and 3400 transitions. [2020-07-07 12:39:56,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 12:39:56,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-07-07 12:39:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:39:56,647 INFO L225 Difference]: With dead ends: 2734 [2020-07-07 12:39:56,648 INFO L226 Difference]: Without dead ends: 1687 [2020-07-07 12:39:56,652 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 12:39:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-07-07 12:39:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1564. [2020-07-07 12:39:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1564 states. [2020-07-07 12:39:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 1826 transitions. [2020-07-07 12:39:57,099 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 1826 transitions. Word has length 166 [2020-07-07 12:39:57,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:39:57,099 INFO L479 AbstractCegarLoop]: Abstraction has 1564 states and 1826 transitions. [2020-07-07 12:39:57,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:39:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 1826 transitions. [2020-07-07 12:39:57,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-07 12:39:57,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:39:57,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:57,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:39:57,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:39:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:39:57,105 INFO L82 PathProgramCache]: Analyzing trace with hash -787475563, now seen corresponding path program 1 times [2020-07-07 12:39:57,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:39:57,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536709156] [2020-07-07 12:39:57,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:39:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,493 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:39:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:39:57,663 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 12:39:57,663 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:39:57,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536709156] [2020-07-07 12:39:57,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:39:57,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 12:39:57,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532322973] [2020-07-07 12:39:57,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 12:39:57,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:39:57,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 12:39:57,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:39:57,667 INFO L87 Difference]: Start difference. First operand 1564 states and 1826 transitions. Second operand 11 states. [2020-07-07 12:39:58,197 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:00,074 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:00,316 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:00,559 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:00,799 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:01,028 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:01,957 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:02,190 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:02,511 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:03,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:03,143 INFO L93 Difference]: Finished difference Result 1728 states and 2071 transitions. [2020-07-07 12:40:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 12:40:03,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-07-07 12:40:03,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:03,153 INFO L225 Difference]: With dead ends: 1728 [2020-07-07 12:40:03,154 INFO L226 Difference]: Without dead ends: 1725 [2020-07-07 12:40:03,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-07-07 12:40:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2020-07-07 12:40:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1573. [2020-07-07 12:40:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-07-07 12:40:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1834 transitions. [2020-07-07 12:40:03,858 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1834 transitions. Word has length 205 [2020-07-07 12:40:03,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:03,859 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1834 transitions. [2020-07-07 12:40:03,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 12:40:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1834 transitions. [2020-07-07 12:40:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-07 12:40:03,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:03,872 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, 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] [2020-07-07 12:40:03,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:40:03,873 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:03,873 INFO L82 PathProgramCache]: Analyzing trace with hash -13978827, now seen corresponding path program 1 times [2020-07-07 12:40:03,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:03,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28079228] [2020-07-07 12:40:03,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,193 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:04,578 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 12:40:04,579 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:04,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28079228] [2020-07-07 12:40:04,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:04,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 12:40:04,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140786452] [2020-07-07 12:40:04,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 12:40:04,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:04,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 12:40:04,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-07-07 12:40:04,582 INFO L87 Difference]: Start difference. First operand 1573 states and 1834 transitions. Second operand 13 states. [2020-07-07 12:40:05,786 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:06,260 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:06,518 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:06,779 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:40:07,051 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:07,309 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:07,533 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:40:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:09,263 INFO L93 Difference]: Finished difference Result 2601 states and 3160 transitions. [2020-07-07 12:40:09,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 12:40:09,264 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 325 [2020-07-07 12:40:09,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:09,269 INFO L225 Difference]: With dead ends: 2601 [2020-07-07 12:40:09,269 INFO L226 Difference]: Without dead ends: 864 [2020-07-07 12:40:09,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2020-07-07 12:40:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-07-07 12:40:09,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 769. [2020-07-07 12:40:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-07-07 12:40:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 872 transitions. [2020-07-07 12:40:09,519 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 872 transitions. Word has length 325 [2020-07-07 12:40:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:09,519 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 872 transitions. [2020-07-07 12:40:09,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 12:40:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 872 transitions. [2020-07-07 12:40:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-07-07 12:40:09,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:09,525 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, 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] [2020-07-07 12:40:09,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:40:09,526 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:09,526 INFO L82 PathProgramCache]: Analyzing trace with hash 532989029, now seen corresponding path program 1 times [2020-07-07 12:40:09,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:09,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984635446] [2020-07-07 12:40:09,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,890 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:10,349 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 12:40:10,349 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:10,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984635446] [2020-07-07 12:40:10,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:10,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 12:40:10,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164426937] [2020-07-07 12:40:10,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 12:40:10,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:10,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 12:40:10,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:40:10,351 INFO L87 Difference]: Start difference. First operand 769 states and 872 transitions. Second operand 15 states. [2020-07-07 12:40:10,932 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 12:40:11,642 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:12,380 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 12:40:12,885 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-07 12:40:13,335 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 12:40:13,792 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-07 12:40:14,222 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 12:40:15,873 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-07 12:40:16,348 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 12:40:16,780 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-07-07 12:40:17,221 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 12:40:17,679 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-07-07 12:40:18,105 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 12:40:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:19,768 INFO L93 Difference]: Finished difference Result 1392 states and 1654 transitions. [2020-07-07 12:40:19,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-07 12:40:19,769 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 291 [2020-07-07 12:40:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:19,774 INFO L225 Difference]: With dead ends: 1392 [2020-07-07 12:40:19,774 INFO L226 Difference]: Without dead ends: 733 [2020-07-07 12:40:19,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=239, Invalid=951, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 12:40:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-07-07 12:40:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 684. [2020-07-07 12:40:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-07-07 12:40:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 759 transitions. [2020-07-07 12:40:20,007 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 759 transitions. Word has length 291 [2020-07-07 12:40:20,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:20,007 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 759 transitions. [2020-07-07 12:40:20,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 12:40:20,007 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 759 transitions. [2020-07-07 12:40:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-07-07 12:40:20,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:20,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:20,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:40:20,013 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:20,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:20,013 INFO L82 PathProgramCache]: Analyzing trace with hash -704198954, now seen corresponding path program 1 times [2020-07-07 12:40:20,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:20,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282888507] [2020-07-07 12:40:20,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,361 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:40:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:40:20,630 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 12:40:20,630 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:20,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282888507] [2020-07-07 12:40:20,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:40:20,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 12:40:20,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522489918] [2020-07-07 12:40:20,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 12:40:20,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:40:20,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 12:40:20,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-07-07 12:40:20,632 INFO L87 Difference]: Start difference. First operand 684 states and 759 transitions. Second operand 13 states. [2020-07-07 12:40:21,038 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:21,690 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:22,695 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:22,934 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:23,197 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:23,434 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:23,663 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:23,895 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:40:24,118 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:24,365 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:24,643 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:40:24,877 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:40:26,254 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:40:26,484 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:40:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:40:27,294 INFO L93 Difference]: Finished difference Result 1512 states and 1784 transitions. [2020-07-07 12:40:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-07 12:40:27,295 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 287 [2020-07-07 12:40:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:40:27,301 INFO L225 Difference]: With dead ends: 1512 [2020-07-07 12:40:27,301 INFO L226 Difference]: Without dead ends: 1024 [2020-07-07 12:40:27,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 57 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=363, Invalid=897, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 12:40:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-07-07 12:40:27,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 878. [2020-07-07 12:40:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-07 12:40:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 990 transitions. [2020-07-07 12:40:27,626 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 990 transitions. Word has length 287 [2020-07-07 12:40:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:40:27,627 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 990 transitions. [2020-07-07 12:40:27,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 12:40:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 990 transitions. [2020-07-07 12:40:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-07-07 12:40:27,635 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:40:27,635 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, 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 12:40:27,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:40:27,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:40:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:40:27,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1694909914, now seen corresponding path program 2 times [2020-07-07 12:40:27,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:40:27,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731765565] [2020-07-07 12:40:27,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:40:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:40:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:40:28,130 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:40:28,131 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:40:28,131 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:40:28,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:40:28,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:40:28 BoogieIcfgContainer [2020-07-07 12:40:28,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:40:28,167 INFO L168 Benchmark]: Toolchain (without parser) took 57650.12 ms. Allocated memory was 146.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 102.6 MB in the beginning and 373.3 MB in the end (delta: -270.7 MB). Peak memory consumption was 794.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,167 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.05 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 170.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,169 INFO L168 Benchmark]: Boogie Preprocessor took 82.70 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,170 INFO L168 Benchmark]: RCFGBuilder took 1132.51 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 172.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,170 INFO L168 Benchmark]: TraceAbstraction took 55796.14 ms. Allocated memory was 235.4 MB in the beginning and 1.2 GB in the end (delta: 976.2 MB). Free memory was 171.2 MB in the beginning and 373.3 MB in the end (delta: -202.1 MB). Peak memory consumption was 774.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:40:28,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.3 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.05 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 170.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.70 ms. Allocated memory is still 203.4 MB. Free memory was 170.7 MB in the beginning and 166.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1132.51 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 172.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55796.14 ms. Allocated memory was 235.4 MB in the beginning and 1.2 GB in the end (delta: 976.2 MB). Free memory was 171.2 MB in the beginning and 373.3 MB in the end (delta: -202.1 MB). Peak memory consumption was 774.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 828]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L219] int pumpRunning = 0; [L220] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L868] int waterLevel = 1; [L869] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) [L167] CALL waterRise() [L886] COND TRUE waterLevel < 2 [L887] waterLevel = waterLevel + 1 [L167] RET waterRise() [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND FALSE !(\read(pumpRunning)) [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND FALSE !(\read(pumpRunning)) [L300] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND TRUE ! pumpRunning [L261] CALL, EXPR isHighWaterLevel() [L396] int retValue_acc ; [L397] int tmp ; [L398] int tmp___0 ; [L402] CALL, EXPR isHighWaterSensorDry() [L948] int retValue_acc ; [L951] COND FALSE !(waterLevel < 2) [L955] retValue_acc = 0 [L956] return (retValue_acc); [L402] RET, EXPR isHighWaterSensorDry() [L402] tmp = isHighWaterSensorDry() [L404] COND FALSE !(\read(tmp)) [L407] tmp___0 = 1 [L409] retValue_acc = tmp___0 [L410] return (retValue_acc); [L261] RET, EXPR isHighWaterLevel() [L261] tmp = isHighWaterLevel() [L263] COND TRUE \read(tmp) [L265] CALL activatePump() [L315] int tmp ; [L319] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L319] RET, EXPR isMethaneAlarm() [L319] tmp = isMethaneAlarm() [L321] COND FALSE !(\read(tmp)) [L325] CALL activatePump__wrappee__highWaterSensor() [L310] pumpRunning = 1 [L325] RET activatePump__wrappee__highWaterSensor() [L265] RET activatePump() [L300] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) [L242] RET __utac_acc__Specification4_spec__1() [L200] RET timeShift() [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND TRUE \read(pumpRunning) [L229] CALL lowerWaterLevel() [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 [L229] RET lowerWaterLevel() [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND TRUE \read(pumpRunning) [L287] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L287] RET, EXPR isMethaneAlarm() [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) [L295] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND FALSE !(! pumpRunning) [L274] FCALL processEnvironment__wrappee__base() [L295] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) [L242] RET __utac_acc__Specification4_spec__1() [L200] RET timeShift() [L155] COND TRUE 1 [L157] COND TRUE splverifierCounter < 4 [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L200] CALL timeShift() [L227] COND TRUE \read(pumpRunning) [L229] CALL lowerWaterLevel() [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 [L229] RET lowerWaterLevel() [L234] COND TRUE \read(systemActive) [L236] CALL processEnvironment() [L282] int tmp ; [L285] COND TRUE \read(pumpRunning) [L287] CALL, EXPR isMethaneAlarm() [L340] int retValue_acc ; [L344] CALL, EXPR isMethaneLevelCritical() [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); [L287] RET, EXPR isMethaneAlarm() [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) [L295] CALL processEnvironment__wrappee__methaneQuery() [L256] int tmp ; [L259] COND FALSE !(! pumpRunning) [L274] FCALL processEnvironment__wrappee__base() [L295] RET processEnvironment__wrappee__methaneQuery() [L236] RET processEnvironment() [L242] CALL __utac_acc__Specification4_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR getWaterLevel() [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); [L804] RET, EXPR getWaterLevel() [L804] tmp = getWaterLevel() [L806] COND TRUE tmp == 0 [L808] CALL, EXPR isPumpRunning() [L351] int retValue_acc ; [L354] retValue_acc = pumpRunning [L355] return (retValue_acc); [L808] RET, EXPR isPumpRunning() [L808] tmp___0 = isPumpRunning() [L810] COND TRUE \read(tmp___0) [L812] CALL __automaton_fail() [L828] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 633 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 55.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 46.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2405 SDtfs, 5786 SDslu, 5390 SDs, 0 SdLazy, 12932 SolverSat, 1960 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 495 GetRequests, 312 SyntacticMatches, 8 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 22.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 858 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...