/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:27:36,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:27:36,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:27:36,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:27:36,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:27:36,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:27:36,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:27:36,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:27:36,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:27:36,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:27:36,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:27:36,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:27:36,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:27:36,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:27:36,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:27:36,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:27:36,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:27:36,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:27:36,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:27:36,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:27:36,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:27:36,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:27:36,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:27:36,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:27:36,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:27:36,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:27:36,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:27:36,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:27:36,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:27:36,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:27:36,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:27:36,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:27:36,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:27:36,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:27:36,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:27:36,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:27:36,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:27:36,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:27:36,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:27:36,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:27:36,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:27:36,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:27:36,339 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:27:36,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:27:36,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:27:36,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:27:36,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:27:36,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:27:36,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:27:36,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:27:36,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:27:36,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:27:36,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:27:36,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:27:36,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:27:36,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:27:36,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:27:36,344 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:27:36,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:27:36,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:27:36,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:27:36,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:27:36,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:27:36,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:27:36,346 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:27:36,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:27:36,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:27:36,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:27:36,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:27:36,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:27:36,780 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:27:36,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2021-02-24 03:27:36,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fb749a0/f9e679336ef54f909b7d656003ad44dc/FLAG9ffe94a14 [2021-02-24 03:27:37,621 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:27:37,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2021-02-24 03:27:37,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fb749a0/f9e679336ef54f909b7d656003ad44dc/FLAG9ffe94a14 [2021-02-24 03:27:37,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81fb749a0/f9e679336ef54f909b7d656003ad44dc [2021-02-24 03:27:37,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:27:37,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:27:37,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:37,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:27:37,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:27:37,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:37" (1/1) ... [2021-02-24 03:27:37,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1599e3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:37, skipping insertion in model container [2021-02-24 03:27:37,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:37" (1/1) ... [2021-02-24 03:27:37,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:27:38,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:27:38,251 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_product13.cil.c[3019,3032] [2021-02-24 03:27:38,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:38,419 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:27:38,477 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_product13.cil.c[3019,3032] [2021-02-24 03:27:38,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:38,576 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:27:38,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38 WrapperNode [2021-02-24 03:27:38,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:38,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:27:38,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:27:38,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:27:38,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (1/1) ... [2021-02-24 03:27:38,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:27:38,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:27:38,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:27:38,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:27:38,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (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 [2021-02-24 03:27:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:27:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:27:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:27:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:27:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:27:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:27:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:27:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:27:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:27:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:27:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:27:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:27:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:27:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:27:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:27:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:27:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:27:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:27:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:27:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:27:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:27:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:27:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:27:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:27:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:27:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:27:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:27:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:27:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:27:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:27:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:27:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-24 03:27:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:27:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-24 03:27:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:27:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:27:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:27:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:27:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:27:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:27:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:27:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:27:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:27:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:27:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:27:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:27:40,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:27:40,641 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:27:40,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:40 BoogieIcfgContainer [2021-02-24 03:27:40,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:27:40,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:27:40,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:27:40,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:27:40,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:27:37" (1/3) ... [2021-02-24 03:27:40,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a557053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:40, skipping insertion in model container [2021-02-24 03:27:40,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:38" (2/3) ... [2021-02-24 03:27:40,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a557053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:40, skipping insertion in model container [2021-02-24 03:27:40,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:40" (3/3) ... [2021-02-24 03:27:40,663 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2021-02-24 03:27:40,670 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:27:40,675 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:27:40,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:27:40,717 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:27:40,717 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:27:40,717 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:27:40,718 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:27:40,718 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:27:40,718 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:27:40,718 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:27:40,718 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:27:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2021-02-24 03:27:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:27:40,772 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:40,773 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] [2021-02-24 03:27:40,774 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:40,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:40,780 INFO L82 PathProgramCache]: Analyzing trace with hash 191098234, now seen corresponding path program 1 times [2021-02-24 03:27:40,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:40,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605642902] [2021-02-24 03:27:40,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:40,876 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,735 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:41,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:27:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:27:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:41,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:41,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:41,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605642902] [2021-02-24 03:27:41,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:41,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:27:41,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966625050] [2021-02-24 03:27:41,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:27:41,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:41,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:27:41,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:27:41,949 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2021-02-24 03:27:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:43,574 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2021-02-24 03:27:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:27:43,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:27:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:43,593 INFO L225 Difference]: With dead ends: 419 [2021-02-24 03:27:43,593 INFO L226 Difference]: Without dead ends: 268 [2021-02-24 03:27:43,599 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 [2021-02-24 03:27:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-02-24 03:27:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2021-02-24 03:27:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-24 03:27:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 247 transitions. [2021-02-24 03:27:43,747 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 247 transitions. Word has length 158 [2021-02-24 03:27:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:43,748 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 247 transitions. [2021-02-24 03:27:43,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:27:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 247 transitions. [2021-02-24 03:27:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:27:43,753 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:43,753 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] [2021-02-24 03:27:43,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:27:43,754 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:43,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1058296177, now seen corresponding path program 1 times [2021-02-24 03:27:43,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:43,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767831390] [2021-02-24 03:27:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:43,759 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:43,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:43,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:43,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:43,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:43,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:43,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,276 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:44,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:27:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:27:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:27:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:44,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:44,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:44,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767831390] [2021-02-24 03:27:44,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:44,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:27:44,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145369399] [2021-02-24 03:27:44,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:27:44,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:27:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:27:44,404 INFO L87 Difference]: Start difference. First operand 229 states and 247 transitions. Second operand 4 states. [2021-02-24 03:27:45,259 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:27:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:46,226 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2021-02-24 03:27:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:27:46,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:27:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:46,241 INFO L225 Difference]: With dead ends: 335 [2021-02-24 03:27:46,241 INFO L226 Difference]: Without dead ends: 251 [2021-02-24 03:27:46,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:27:46,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-24 03:27:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-24 03:27:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-24 03:27:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-24 03:27:46,394 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 159 [2021-02-24 03:27:46,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:46,397 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-24 03:27:46,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:27:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-24 03:27:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 03:27:46,405 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:46,405 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] [2021-02-24 03:27:46,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:27:46,410 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:46,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:46,413 INFO L82 PathProgramCache]: Analyzing trace with hash 183006728, now seen corresponding path program 1 times [2021-02-24 03:27:46,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:46,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137459287] [2021-02-24 03:27:46,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:46,427 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:46,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:46,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:46,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:46,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:46,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:46,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:46,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:46,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:27:46,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:46,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:46,969 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:27:47,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:27:47,155 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:27:47,161 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:27:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:27:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-24 03:27:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:47,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:47,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:47,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:47,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137459287] [2021-02-24 03:27:47,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:47,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:27:47,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826005602] [2021-02-24 03:27:47,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:27:47,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:47,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:27:47,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:27:47,294 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 9 states. [2021-02-24 03:27:47,977 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:48,460 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:27:48,870 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:27:49,260 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:49,678 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:50,070 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:51,488 INFO L93 Difference]: Finished difference Result 355 states and 400 transitions. [2021-02-24 03:27:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:27:51,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-24 03:27:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:51,492 INFO L225 Difference]: With dead ends: 355 [2021-02-24 03:27:51,492 INFO L226 Difference]: Without dead ends: 251 [2021-02-24 03:27:51,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-24 03:27:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-24 03:27:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-24 03:27:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-24 03:27:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2021-02-24 03:27:51,599 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 168 [2021-02-24 03:27:51,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:51,599 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2021-02-24 03:27:51,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:27:51,600 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2021-02-24 03:27:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-24 03:27:51,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:51,603 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] [2021-02-24 03:27:51,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:27:51,603 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:51,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1423256127, now seen corresponding path program 1 times [2021-02-24 03:27:51,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:51,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457233856] [2021-02-24 03:27:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:51,607 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:51,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:51,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:51,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,081 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:27:52,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:27:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:27:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:27:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:27:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:52,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:52,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-24 03:27:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:52,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:52,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:52,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457233856] [2021-02-24 03:27:52,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:52,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:27:52,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679141615] [2021-02-24 03:27:52,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:27:52,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:52,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:27:52,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:27:52,349 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 9 states. [2021-02-24 03:27:52,982 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:54,958 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:55,399 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:55,810 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:56,267 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:56,681 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:57,268 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:57,691 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:58,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:58,008 INFO L93 Difference]: Finished difference Result 494 states and 585 transitions. [2021-02-24 03:27:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:27:58,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2021-02-24 03:27:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:58,024 INFO L225 Difference]: With dead ends: 494 [2021-02-24 03:27:58,024 INFO L226 Difference]: Without dead ends: 390 [2021-02-24 03:27:58,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 03:27:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-02-24 03:27:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 315. [2021-02-24 03:27:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2021-02-24 03:27:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 346 transitions. [2021-02-24 03:27:58,171 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 346 transitions. Word has length 176 [2021-02-24 03:27:58,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:58,172 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 346 transitions. [2021-02-24 03:27:58,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:27:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 346 transitions. [2021-02-24 03:27:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-24 03:27:58,175 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:58,176 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, 1, 1, 1, 1] [2021-02-24 03:27:58,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:27:58,176 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:58,177 INFO L82 PathProgramCache]: Analyzing trace with hash 129557805, now seen corresponding path program 1 times [2021-02-24 03:27:58,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:58,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849982035] [2021-02-24 03:27:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:58,180 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,550 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:58,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:58,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-24 03:27:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:27:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:27:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:27:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-24 03:27:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-02-24 03:27:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:58,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:58,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:58,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849982035] [2021-02-24 03:27:58,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:58,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:27:58,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30224625] [2021-02-24 03:27:58,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:27:58,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:58,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:27:58,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:27:58,700 INFO L87 Difference]: Start difference. First operand 315 states and 346 transitions. Second operand 6 states. [2021-02-24 03:27:59,294 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:28:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:28:00,011 INFO L93 Difference]: Finished difference Result 484 states and 550 transitions. [2021-02-24 03:28:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 03:28:00,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2021-02-24 03:28:00,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:28:00,015 INFO L225 Difference]: With dead ends: 484 [2021-02-24 03:28:00,016 INFO L226 Difference]: Without dead ends: 284 [2021-02-24 03:28:00,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:28:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-24 03:28:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 263. [2021-02-24 03:28:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-02-24 03:28:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 278 transitions. [2021-02-24 03:28:00,113 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 278 transitions. Word has length 186 [2021-02-24 03:28:00,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:28:00,114 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 278 transitions. [2021-02-24 03:28:00,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:28:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 278 transitions. [2021-02-24 03:28:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-24 03:28:00,116 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:28:00,117 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] [2021-02-24 03:28:00,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:28:00,117 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:28:00,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:28:00,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1108331973, now seen corresponding path program 1 times [2021-02-24 03:28:00,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:28:00,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770297376] [2021-02-24 03:28:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:28:00,121 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:28:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:28:00,199 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:28:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:28:00,278 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:28:00,473 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:28:00,473 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:28:00,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:28:00,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:28:00 BoogieIcfgContainer [2021-02-24 03:28:00,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:28:00,500 INFO L168 Benchmark]: Toolchain (without parser) took 22540.64 ms. Allocated memory was 151.0 MB in the beginning and 449.8 MB in the end (delta: 298.8 MB). Free memory was 127.2 MB in the beginning and 220.1 MB in the end (delta: -92.8 MB). Peak memory consumption was 206.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:28:00,501 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:28:00,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.67 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:28:00,502 INFO L168 Benchmark]: Boogie Preprocessor took 193.09 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 133.0 MB in the end (delta: -27.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:28:00,502 INFO L168 Benchmark]: RCFGBuilder took 1877.95 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 76.4 MB in the end (delta: 56.6 MB). Peak memory consumption was 57.5 MB. Max. memory is 8.0 GB. [2021-02-24 03:28:00,503 INFO L168 Benchmark]: TraceAbstraction took 19846.57 ms. Allocated memory was 151.0 MB in the beginning and 449.8 MB in the end (delta: 298.8 MB). Free memory was 75.9 MB in the beginning and 220.1 MB in the end (delta: -144.2 MB). Peak memory consumption was 154.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:28:00,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 598.67 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 193.09 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 133.0 MB in the end (delta: -27.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1877.95 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 76.4 MB in the end (delta: 56.6 MB). Peak memory consumption was 57.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19846.57 ms. Allocated memory was 151.0 MB in the beginning and 449.8 MB in the end (delta: 298.8 MB). Free memory was 75.9 MB in the beginning and 220.1 MB in the end (delta: -144.2 MB). Peak memory consumption was 154.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 170]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L251] int retValue_acc ; [L252] int tmp ; [L256] FCALL select_helpers() [L257] FCALL select_features() [L258] CALL, EXPR valid_product() [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L258] RET, EXPR valid_product() [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) [L262] FCALL setup() [L263] CALL runTest() [L245] CALL test() [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 [L472] COND TRUE 1 [L474] COND TRUE splverifierCounter < 4 [L480] tmp = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp) [L484] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L484] RET waterRise() [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) [L515] CALL timeShift() [L285] COND FALSE !(\read(pumpRunning)) [L292] COND TRUE \read(systemActive) [L294] CALL processEnvironment() [L314] int tmp ; [L317] COND FALSE !(\read(pumpRunning)) [L332] FCALL processEnvironment__wrappee__methaneQuery() [L294] RET processEnvironment() [L300] CALL __utac_acc__Specification3_spec__1() [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L435] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L435] RET, EXPR isMethaneLevelCritical() [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L441] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L441] RET, EXPR getWaterLevel() [L441] tmp___0 = getWaterLevel() [L443] COND TRUE tmp___0 == 2 [L445] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L445] RET, EXPR isPumpRunning() [L445] tmp___1 = isPumpRunning() [L447] COND FALSE !(\read(tmp___1)) [L451] CALL __automaton_fail() [L170] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 608 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1019 SDtfs, 1322 SDslu, 1271 SDs, 0 SdLazy, 2339 SolverSat, 393 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 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...