/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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:01:38,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:01:38,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:01:38,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:01:38,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:01:38,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:01:38,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:01:38,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:01:38,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:01:38,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:01:38,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:01:38,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:01:38,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:01:38,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:01:38,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:01:38,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:01:38,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:01:38,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:01:38,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:01:38,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:01:38,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:01:38,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:01:38,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:01:38,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:01:38,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:01:38,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:01:38,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:01:38,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:01:38,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:01:38,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:01:38,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:01:38,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:01:38,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:01:38,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:01:38,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:01:38,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:01:38,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:01:38,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:01:38,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:01:38,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:01:38,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:01:38,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:01:38,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:01:38,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:01:38,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:01:38,192 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:01:38,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:01:38,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:01:38,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:01:38,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:01:38,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:01:38,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:01:38,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:01:38,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:01:38,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:01:38,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:01:38,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:01:38,195 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:01:38,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:01:38,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:01:38,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:01:38,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:01:38,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:01:38,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:01:38,197 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:01:38,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:01:38,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:01:38,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:01:38,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:01:38,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:01:38,604 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:01:38,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-22 01:01:38,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc558e2f0/138b076f22ba4a98ae8a96be77f50007/FLAGcd2498101 [2021-02-22 01:01:39,366 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:01:39,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-22 01:01:39,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc558e2f0/138b076f22ba4a98ae8a96be77f50007/FLAGcd2498101 [2021-02-22 01:01:39,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc558e2f0/138b076f22ba4a98ae8a96be77f50007 [2021-02-22 01:01:39,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:01:39,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:01:39,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:01:39,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:01:39,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:01:39,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:01:39" (1/1) ... [2021-02-22 01:01:39,738 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 22.02 01:01:39, skipping insertion in model container [2021-02-22 01:01:39,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:01:39" (1/1) ... [2021-02-22 01:01:39,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:01:39,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:01:40,027 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_product06.cil.c[1281,1294] [2021-02-22 01:01:40,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:01:40,169 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:01:40,185 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_product06.cil.c[1281,1294] [2021-02-22 01:01:40,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:01:40,329 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:01:40,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40 WrapperNode [2021-02-22 01:01:40,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:01:40,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:01:40,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:01:40,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:01:40,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:01:40,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:01:40,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:01:40,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:01:40,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (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 [2021-02-22 01:01:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:01:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:01:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:01:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:01:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:01:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:01:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:01:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:01:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:01:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:01:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:01:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:01:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:01:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:01:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:01:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:01:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:01:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-22 01:01:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:01:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:01:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:01:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:01:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:01:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:01:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:01:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:01:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:01:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:01:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:01:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:01:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:01:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:01:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:01:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:01:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:01:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:01:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:01:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:01:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:01:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:01:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:01:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:01:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:01:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:01:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:01:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:01:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:01:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:01:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:01:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:01:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:01:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:01:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:01:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:01:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:01:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:01:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:01:41,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:01:41,896 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:01:41,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:01:41 BoogieIcfgContainer [2021-02-22 01:01:41,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:01:41,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:01:41,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:01:41,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:01:41,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:01:39" (1/3) ... [2021-02-22 01:01:41,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec99a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:01:41, skipping insertion in model container [2021-02-22 01:01:41,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (2/3) ... [2021-02-22 01:01:41,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec99a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:01:41, skipping insertion in model container [2021-02-22 01:01:41,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:01:41" (3/3) ... [2021-02-22 01:01:41,908 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2021-02-22 01:01:41,915 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:01:41,921 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:01:41,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:01:41,962 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:01:41,962 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:01:41,962 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:01:41,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:01:41,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:01:41,962 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:01:41,963 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:01:41,963 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:01:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2021-02-22 01:01:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-22 01:01:42,005 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:42,006 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] [2021-02-22 01:01:42,006 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1003955035, now seen corresponding path program 1 times [2021-02-22 01:01:42,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:42,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115576219] [2021-02-22 01:01:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:42,100 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:42,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:42,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:42,886 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:42,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:42,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:42,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:42,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:01:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:01:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:01:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:43,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115576219] [2021-02-22 01:01:43,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:43,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:01:43,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343168979] [2021-02-22 01:01:43,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:01:43,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:43,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:01:43,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:01:43,135 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2021-02-22 01:01:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:44,582 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2021-02-22 01:01:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:01:44,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-22 01:01:44,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:44,614 INFO L225 Difference]: With dead ends: 428 [2021-02-22 01:01:44,615 INFO L226 Difference]: Without dead ends: 273 [2021-02-22 01:01:44,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:01:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-22 01:01:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 233. [2021-02-22 01:01:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-02-22 01:01:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2021-02-22 01:01:44,841 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 158 [2021-02-22 01:01:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:44,842 INFO L480 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2021-02-22 01:01:44,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:01:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2021-02-22 01:01:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 01:01:44,847 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:44,847 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] [2021-02-22 01:01:44,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:01:44,848 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:44,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1445699213, now seen corresponding path program 1 times [2021-02-22 01:01:44,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:44,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67793281] [2021-02-22 01:01:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:44,854 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:44,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:44,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:44,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:44,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:44,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:44,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,273 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:45,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 01:01:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 01:01:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 01:01:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:45,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67793281] [2021-02-22 01:01:45,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:45,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:01:45,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128235755] [2021-02-22 01:01:45,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:01:45,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:45,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:01:45,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:01:45,396 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 4 states. [2021-02-22 01:01:46,111 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:01:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:46,941 INFO L93 Difference]: Finished difference Result 340 states and 381 transitions. [2021-02-22 01:01:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:01:46,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-22 01:01:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:46,954 INFO L225 Difference]: With dead ends: 340 [2021-02-22 01:01:46,955 INFO L226 Difference]: Without dead ends: 256 [2021-02-22 01:01:46,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:01:46,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-02-22 01:01:47,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 223. [2021-02-22 01:01:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2021-02-22 01:01:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2021-02-22 01:01:47,078 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 159 [2021-02-22 01:01:47,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:47,078 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2021-02-22 01:01:47,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:01:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2021-02-22 01:01:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-22 01:01:47,082 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:47,082 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] [2021-02-22 01:01:47,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:01:47,083 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:47,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:47,084 INFO L82 PathProgramCache]: Analyzing trace with hash -989437074, now seen corresponding path program 1 times [2021-02-22 01:01:47,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:47,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771435615] [2021-02-22 01:01:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:47,088 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:01:47,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,541 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:47,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:01:47,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:01:47,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:01:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 01:01:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-22 01:01:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-22 01:01:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:47,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771435615] [2021-02-22 01:01:47,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:47,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:01:47,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624673863] [2021-02-22 01:01:47,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:01:47,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:47,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:01:47,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:01:47,714 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 10 states. [2021-02-22 01:01:48,320 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:48,776 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:01:49,149 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:01:49,524 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:49,897 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:50,228 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:51,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:51,720 INFO L93 Difference]: Finished difference Result 386 states and 443 transitions. [2021-02-22 01:01:51,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:01:51,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-22 01:01:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:51,724 INFO L225 Difference]: With dead ends: 386 [2021-02-22 01:01:51,724 INFO L226 Difference]: Without dead ends: 278 [2021-02-22 01:01:51,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-22 01:01:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-02-22 01:01:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 223. [2021-02-22 01:01:51,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2021-02-22 01:01:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2021-02-22 01:01:51,808 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 172 [2021-02-22 01:01:51,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:51,808 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2021-02-22 01:01:51,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:01:51,809 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2021-02-22 01:01:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-22 01:01:51,811 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:51,811 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] [2021-02-22 01:01:51,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:01:51,812 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:51,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1496509043, now seen corresponding path program 1 times [2021-02-22 01:01:51,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:51,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347148897] [2021-02-22 01:01:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:51,816 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:51,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:51,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:51,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,199 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:01:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:01:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:01:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:01:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-22 01:01:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-22 01:01:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:52,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:52,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-22 01:01:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:52,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:52,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:52,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347148897] [2021-02-22 01:01:52,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:52,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:01:52,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441901946] [2021-02-22 01:01:52,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:01:52,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:52,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:01:52,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:01:52,376 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 10 states. [2021-02-22 01:01:53,054 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:54,995 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:55,426 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:55,806 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:56,182 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:56,536 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:57,088 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:57,545 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:58,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:58,221 INFO L93 Difference]: Finished difference Result 597 states and 739 transitions. [2021-02-22 01:01:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-22 01:01:58,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2021-02-22 01:01:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:58,227 INFO L225 Difference]: With dead ends: 597 [2021-02-22 01:01:58,227 INFO L226 Difference]: Without dead ends: 489 [2021-02-22 01:01:58,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-02-22 01:01:58,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-02-22 01:01:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 323. [2021-02-22 01:01:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2021-02-22 01:01:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 354 transitions. [2021-02-22 01:01:58,389 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 354 transitions. Word has length 180 [2021-02-22 01:01:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:58,389 INFO L480 AbstractCegarLoop]: Abstraction has 323 states and 354 transitions. [2021-02-22 01:01:58,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:01:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 354 transitions. [2021-02-22 01:01:58,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-02-22 01:01:58,394 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:58,394 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] [2021-02-22 01:01:58,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:01:58,394 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:58,395 INFO L82 PathProgramCache]: Analyzing trace with hash 227586222, now seen corresponding path program 1 times [2021-02-22 01:01:58,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:58,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292164556] [2021-02-22 01:01:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:58,398 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:01:58,496 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:01:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:01:58,577 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:01:58,802 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:01:58,802 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:01:58,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:01:58,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:01:58 BoogieIcfgContainer [2021-02-22 01:01:58,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:01:58,838 INFO L168 Benchmark]: Toolchain (without parser) took 19126.68 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 127.1 MB in the beginning and 317.9 MB in the end (delta: -190.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:01:58,838 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:01:58,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:01:58,839 INFO L168 Benchmark]: Boogie Preprocessor took 110.99 ms. Allocated memory is still 151.0 MB. Free memory was 105.7 MB in the beginning and 133.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:01:58,840 INFO L168 Benchmark]: RCFGBuilder took 1455.74 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 94.6 MB in the end (delta: 39.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:01:58,841 INFO L168 Benchmark]: TraceAbstraction took 16936.46 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 94.1 MB in the beginning and 317.9 MB in the end (delta: -223.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:01:58,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 598.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.99 ms. Allocated memory is still 151.0 MB. Free memory was 105.7 MB in the beginning and 133.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1455.74 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 94.6 MB in the end (delta: 39.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16936.46 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 94.1 MB in the beginning and 317.9 MB in the end (delta: -223.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int retValue_acc ; [L465] int tmp ; [L469] FCALL select_helpers() [L470] FCALL select_features() [L471] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L471] RET, EXPR valid_product() [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) [L475] FCALL setup() [L476] CALL runTest() [L458] CALL test() [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 [L253] COND TRUE 1 [L255] COND TRUE splverifierCounter < 4 [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) [L265] CALL waterRise() [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 [L265] RET waterRise() [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L285] CALL startSystem() [L235] systemActive = 1 [L285] RET startSystem() [L298] CALL timeShift() [L106] COND FALSE !(\read(pumpRunning)) [L113] COND TRUE \read(systemActive) [L115] CALL processEnvironment() [L135] int tmp ; [L138] COND FALSE !(\read(pumpRunning)) [L153] FCALL processEnvironment__wrappee__base() [L115] RET processEnvironment() [L121] CALL __utac_acc__Specification3_spec__1() [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L860] CALL, EXPR isMethaneLevelCritical() [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); [L860] RET, EXPR isMethaneLevelCritical() [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L866] CALL, EXPR getWaterLevel() [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L866] RET, EXPR getWaterLevel() [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L870] CALL, EXPR isPumpRunning() [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); [L870] RET, EXPR isPumpRunning() [L870] tmp___1 = isPumpRunning() [L872] COND FALSE !(\read(tmp___1)) [L876] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 858 SDtfs, 1365 SDslu, 1283 SDs, 0 SdLazy, 2412 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...