/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 18:58:10,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:58:10,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:58:10,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:58:10,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:58:10,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:58:10,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:58:10,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:58:10,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:58:10,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:58:10,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:58:10,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:58:10,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:58:10,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:58:10,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:58:10,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:58:10,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:58:10,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:58:10,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:58:10,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:58:10,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:58:10,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:58:10,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:58:10,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:58:10,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:58:10,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:58:10,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:58:10,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:58:10,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:58:10,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:58:10,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:58:10,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:58:10,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:58:10,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:58:10,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:58:10,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:58:10,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:58:10,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:58:10,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:58:10,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:58:10,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:58:10,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 18:58:10,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:58:10,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:58:10,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:58:10,242 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:58:10,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:58:10,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:58:10,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:58:10,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:58:10,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:58:10,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:58:10,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:58:10,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:58:10,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:58:10,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:58:10,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:58:10,244 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:58:10,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:58:10,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:58:10,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:58:10,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:58:10,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:58:10,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:58:10,246 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:58:10,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:58:10,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:58:10,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:58:10,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:58:10,637 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:58:10,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2021-02-21 18:58:10,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce0c57a3c/0e55dba5ca794c2bb0cd0054e570d98c/FLAG56581d0fa [2021-02-21 18:58:11,353 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:58:11,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2021-02-21 18:58:11,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce0c57a3c/0e55dba5ca794c2bb0cd0054e570d98c/FLAG56581d0fa [2021-02-21 18:58:11,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce0c57a3c/0e55dba5ca794c2bb0cd0054e570d98c [2021-02-21 18:58:11,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:58:11,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:58:11,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:58:11,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:58:11,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:58:11,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:58:11" (1/1) ... [2021-02-21 18:58:11,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12688d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:11, skipping insertion in model container [2021-02-21 18:58:11,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:58:11" (1/1) ... [2021-02-21 18:58:11,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:58:11,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:58:11,895 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-02-21 18:58:12,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:58:12,087 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:58:12,112 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-02-21 18:58:12,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:58:12,222 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:58:12,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12 WrapperNode [2021-02-21 18:58:12,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:58:12,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:58:12,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:58:12,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:58:12,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (1/1) ... [2021-02-21 18:58:12,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:58:12,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:58:12,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:58:12,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:58:12,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (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 [2021-02-21 18:58:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:58:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:58:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:58:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:58:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:58:12,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-21 18:58:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:58:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:58:12,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:58:12,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:58:12,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:58:12,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:58:12,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:58:12,478 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:58:12,478 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:58:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 18:58:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-21 18:58:12,481 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:58:12,481 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-21 18:58:12,481 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:58:12,481 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:58:12,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:58:12,482 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:58:12,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:58:12,483 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:58:12,484 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:58:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:58:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:58:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:58:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:58:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:58:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-21 18:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:58:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:58:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:58:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:58:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:58:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:58:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:58:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:58:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:58:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 18:58:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-21 18:58:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-21 18:58:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:58:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-21 18:58:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:58:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:58:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:58:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:58:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:58:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:58:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:58:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:58:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:58:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:58:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:58:13,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:58:13,991 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:58:13,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:58:13 BoogieIcfgContainer [2021-02-21 18:58:13,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:58:13,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:58:13,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:58:14,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:58:14,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:58:11" (1/3) ... [2021-02-21 18:58:14,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1eb8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:58:14, skipping insertion in model container [2021-02-21 18:58:14,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:58:12" (2/3) ... [2021-02-21 18:58:14,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1eb8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:58:14, skipping insertion in model container [2021-02-21 18:58:14,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:58:13" (3/3) ... [2021-02-21 18:58:14,009 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2021-02-21 18:58:14,017 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:58:14,025 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:58:14,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:58:14,084 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:58:14,085 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:58:14,085 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:58:14,086 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:58:14,086 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:58:14,086 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:58:14,087 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:58:14,087 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:58:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2021-02-21 18:58:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-21 18:58:14,162 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:58:14,165 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] [2021-02-21 18:58:14,165 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:58:14,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:58:14,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1285644281, now seen corresponding path program 1 times [2021-02-21 18:58:14,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:58:14,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140881650] [2021-02-21 18:58:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:58:14,284 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:58:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:14,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:14,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:14,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:14,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,106 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:58:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:58:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:58:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:58:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:58:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:58:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:58:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:58:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:58:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:15,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:15,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:58:15,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140881650] [2021-02-21 18:58:15,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:58:15,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 18:58:15,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253385711] [2021-02-21 18:58:15,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 18:58:15,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:58:15,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 18:58:15,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:58:15,308 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2021-02-21 18:58:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:58:17,105 INFO L93 Difference]: Finished difference Result 497 states and 595 transitions. [2021-02-21 18:58:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 18:58:17,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-21 18:58:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:58:17,124 INFO L225 Difference]: With dead ends: 497 [2021-02-21 18:58:17,125 INFO L226 Difference]: Without dead ends: 309 [2021-02-21 18:58:17,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:58:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-21 18:58:17,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 266. [2021-02-21 18:58:17,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-02-21 18:58:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 291 transitions. [2021-02-21 18:58:17,315 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 291 transitions. Word has length 158 [2021-02-21 18:58:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:58:17,316 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 291 transitions. [2021-02-21 18:58:17,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 18:58:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 291 transitions. [2021-02-21 18:58:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-21 18:58:17,320 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:58:17,321 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] [2021-02-21 18:58:17,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:58:17,321 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:58:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:58:17,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1886676820, now seen corresponding path program 1 times [2021-02-21 18:58:17,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:58:17,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570935771] [2021-02-21 18:58:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:58:17,327 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:58:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:17,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,809 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:58:17,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:58:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:58:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:58:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:58:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:58:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-21 18:58:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:58:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 18:58:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:17,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:17,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:58:17,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570935771] [2021-02-21 18:58:17,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:58:17,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:58:17,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845516481] [2021-02-21 18:58:17,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:58:17,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:58:17,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:58:17,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:58:17,942 INFO L87 Difference]: Start difference. First operand 266 states and 291 transitions. Second operand 4 states. [2021-02-21 18:58:18,692 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:58:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:58:19,846 INFO L93 Difference]: Finished difference Result 407 states and 461 transitions. [2021-02-21 18:58:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 18:58:19,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-21 18:58:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:58:19,851 INFO L225 Difference]: With dead ends: 407 [2021-02-21 18:58:19,851 INFO L226 Difference]: Without dead ends: 292 [2021-02-21 18:58:19,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 18:58:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-21 18:58:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 256. [2021-02-21 18:58:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-21 18:58:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 278 transitions. [2021-02-21 18:58:19,998 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 278 transitions. Word has length 159 [2021-02-21 18:58:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:58:19,999 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 278 transitions. [2021-02-21 18:58:19,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:58:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 278 transitions. [2021-02-21 18:58:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-21 18:58:20,003 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:58:20,003 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, 1, 1] [2021-02-21 18:58:20,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:58:20,004 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:58:20,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:58:20,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1859638156, now seen corresponding path program 1 times [2021-02-21 18:58:20,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:58:20,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192061530] [2021-02-21 18:58:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:58:20,010 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:58:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:20,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:20,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:20,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:20,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:58:20,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:58:20,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:58:20,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,474 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:58:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:58:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:58:20,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:58:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:58:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:58:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:58:20,582 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 18:58:20,584 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 18:58:20,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:58:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:58:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:58:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-21 18:58:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:20,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:20,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:58:20,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192061530] [2021-02-21 18:58:20,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:58:20,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:58:20,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850656738] [2021-02-21 18:58:20,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:58:20,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:58:20,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:58:20,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:58:20,695 INFO L87 Difference]: Start difference. First operand 256 states and 278 transitions. Second operand 9 states. [2021-02-21 18:58:21,307 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:58:21,783 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:58:22,153 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:58:22,532 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:22,915 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:58:23,287 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:24,444 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:58:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:58:26,955 INFO L93 Difference]: Finished difference Result 680 states and 787 transitions. [2021-02-21 18:58:26,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 18:58:26,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-21 18:58:26,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:58:26,961 INFO L225 Difference]: With dead ends: 680 [2021-02-21 18:58:26,961 INFO L226 Difference]: Without dead ends: 539 [2021-02-21 18:58:26,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-21 18:58:26,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-02-21 18:58:27,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 472. [2021-02-21 18:58:27,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2021-02-21 18:58:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 531 transitions. [2021-02-21 18:58:27,193 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 531 transitions. Word has length 168 [2021-02-21 18:58:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:58:27,194 INFO L480 AbstractCegarLoop]: Abstraction has 472 states and 531 transitions. [2021-02-21 18:58:27,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:58:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 531 transitions. [2021-02-21 18:58:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-21 18:58:27,198 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:58:27,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:58:27,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:58:27,199 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:58:27,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:58:27,199 INFO L82 PathProgramCache]: Analyzing trace with hash -559990162, now seen corresponding path program 1 times [2021-02-21 18:58:27,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:58:27,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514028304] [2021-02-21 18:58:27,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:58:27,204 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:58:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,589 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:58:27,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:58:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:58:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:58:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:58:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:58:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:58:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-21 18:58:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-21 18:58:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-21 18:58:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:58:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-21 18:58:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:58:27,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:58:27,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:58:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:58:27,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514028304] [2021-02-21 18:58:27,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:58:27,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:58:27,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013683748] [2021-02-21 18:58:27,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:58:27,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:58:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:58:27,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:58:27,863 INFO L87 Difference]: Start difference. First operand 472 states and 531 transitions. Second operand 9 states. [2021-02-21 18:58:28,598 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:58:30,792 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:31,203 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:58:31,623 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:32,061 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:58:32,435 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:58:32,814 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:33,189 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:58:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:58:34,207 INFO L93 Difference]: Finished difference Result 1269 states and 1530 transitions. [2021-02-21 18:58:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 18:58:34,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-21 18:58:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:58:34,215 INFO L225 Difference]: With dead ends: 1269 [2021-02-21 18:58:34,215 INFO L226 Difference]: Without dead ends: 912 [2021-02-21 18:58:34,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-21 18:58:34,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2021-02-21 18:58:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 812. [2021-02-21 18:58:34,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2021-02-21 18:58:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 940 transitions. [2021-02-21 18:58:34,573 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 940 transitions. Word has length 177 [2021-02-21 18:58:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:58:34,574 INFO L480 AbstractCegarLoop]: Abstraction has 812 states and 940 transitions. [2021-02-21 18:58:34,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:58:34,574 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 940 transitions. [2021-02-21 18:58:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-21 18:58:34,580 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:58:34,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 18:58:34,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:58:34,581 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:58:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:58:34,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2108380879, now seen corresponding path program 1 times [2021-02-21 18:58:34,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:58:34,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059478787] [2021-02-21 18:58:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:58:34,587 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:58:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:58:34,664 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:58:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:58:34,736 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:58:34,978 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:58:34,979 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:58:34,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:58:35,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:58:35 BoogieIcfgContainer [2021-02-21 18:58:35,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:58:35,025 INFO L168 Benchmark]: Toolchain (without parser) took 23378.41 ms. Allocated memory was 155.2 MB in the beginning and 539.0 MB in the end (delta: 383.8 MB). Free memory was 130.9 MB in the beginning and 443.9 MB in the end (delta: -313.0 MB). Peak memory consumption was 71.8 MB. Max. memory is 8.0 GB. [2021-02-21 18:58:35,028 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 128.9 MB in the end (delta: 215.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:58:35,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.92 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 108.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:58:35,035 INFO L168 Benchmark]: Boogie Preprocessor took 131.91 ms. Allocated memory is still 155.2 MB. Free memory was 108.1 MB in the beginning and 104.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-21 18:58:35,035 INFO L168 Benchmark]: RCFGBuilder took 1636.74 ms. Allocated memory was 155.2 MB in the beginning and 209.7 MB in the end (delta: 54.5 MB). Free memory was 104.0 MB in the beginning and 174.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. [2021-02-21 18:58:35,038 INFO L168 Benchmark]: TraceAbstraction took 21027.49 ms. Allocated memory was 209.7 MB in the beginning and 539.0 MB in the end (delta: 329.3 MB). Free memory was 174.7 MB in the beginning and 443.9 MB in the end (delta: -269.2 MB). Peak memory consumption was 59.5 MB. Max. memory is 8.0 GB. [2021-02-21 18:58:35,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 128.9 MB in the end (delta: 215.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 564.92 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 108.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 131.91 ms. Allocated memory is still 155.2 MB. Free memory was 108.1 MB in the beginning and 104.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1636.74 ms. Allocated memory was 155.2 MB in the beginning and 209.7 MB in the end (delta: 54.5 MB). Free memory was 104.0 MB in the beginning and 174.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21027.49 ms. Allocated memory was 209.7 MB in the beginning and 539.0 MB in the end (delta: 329.3 MB). Free memory was 174.7 MB in the beginning and 443.9 MB in the end (delta: -269.2 MB). Peak memory consumption was 59.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 142]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; [L943] int retValue_acc ; [L944] int tmp ; [L948] FCALL select_helpers() [L949] FCALL select_features() [L950] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L950] RET, EXPR valid_product() [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) [L954] FCALL setup() [L955] CALL runTest() [L937] CALL test() [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 [L526] COND TRUE 1 [L528] COND TRUE splverifierCounter < 4 [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) [L538] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L538] RET waterRise() [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___2)) [L560] tmp___1 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___1) [L564] CALL stopSystem() [L786] COND FALSE !(\read(pumpRunning)) [L793] systemActive = 0 [L564] RET stopSystem() [L571] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND FALSE !(\read(systemActive)) [L610] CALL __utac_acc__Specification3_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L805] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L805] RET, EXPR isMethaneLevelCritical() [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L811] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L811] RET, EXPR getWaterLevel() [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L815] CALL, EXPR isPumpRunning() [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); [L815] RET, EXPR isPumpRunning() [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) [L821] CALL __automaton_fail() [L142] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 645 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1021 SDtfs, 1372 SDslu, 1317 SDs, 0 SdLazy, 3202 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=812occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 246 StatesRemovedByMinimization, 4 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...