/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:57,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:57,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:57,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:57,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:57,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:57,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:57,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:57,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:57,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:57,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:57,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:57,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:57,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:57,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:57,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:57,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:57,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:57,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:57,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:57,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:57,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:57,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:57,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:57,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:57,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:57,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:57,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:57,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:57,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:57,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:57,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:57,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:57,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:57,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:57,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:57,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:57,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:57,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:57,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:57,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:57,819 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:01:57,831 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:57,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:57,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:57,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:57,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:57,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:57,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:57,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:57,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:57,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:57,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:57,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:57,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:57,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:57,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:57,836 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:57,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:57,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:57,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:57,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:57,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:57,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:57,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:58,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:58,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:58,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:58,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:58,230 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:58,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-11-07 00:01:58,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d6cbbed/a655aaa522664a0fae7b2ef43a81956d/FLAGe911cfa6c [2020-11-07 00:01:59,069 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:59,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-11-07 00:01:59,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d6cbbed/a655aaa522664a0fae7b2ef43a81956d/FLAGe911cfa6c [2020-11-07 00:01:59,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d6cbbed/a655aaa522664a0fae7b2ef43a81956d [2020-11-07 00:01:59,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:59,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:59,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:59,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:59,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:59,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:01:59,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78503465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59, skipping insertion in model container [2020-11-07 00:01:59,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:01:59,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:59,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:59,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:59,859 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:59,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:59,974 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:59,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59 WrapperNode [2020-11-07 00:01:59,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:59,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:59,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:59,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:59,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:01:59,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... [2020-11-07 00:02:00,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:00,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:00,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:00,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:00,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:02:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:02:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:02:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:02:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:02:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:02:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:01,806 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:01,807 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:01,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:01 BoogieIcfgContainer [2020-11-07 00:02:01,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:01,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:01,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:01,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:01,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:59" (1/3) ... [2020-11-07 00:02:01,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77250ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:01, skipping insertion in model container [2020-11-07 00:02:01,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:59" (2/3) ... [2020-11-07 00:02:01,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77250ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:01, skipping insertion in model container [2020-11-07 00:02:01,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:01" (3/3) ... [2020-11-07 00:02:01,827 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-11-07 00:02:01,842 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:01,847 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:01,860 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:01,886 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:01,887 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:01,887 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:01,887 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:01,887 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:01,887 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:01,887 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:01,888 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-11-07 00:02:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:01,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:01,937 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] [2020-11-07 00:02:01,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:01,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1078994717, now seen corresponding path program 1 times [2020-11-07 00:02:01,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:01,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148979970] [2020-11-07 00:02:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:02,046 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,868 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:02,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:03,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148979970] [2020-11-07 00:02:03,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:03,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:03,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916384047] [2020-11-07 00:02:03,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:03,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:03,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:03,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:03,128 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-11-07 00:02:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:04,940 INFO L93 Difference]: Finished difference Result 510 states and 610 transitions. [2020-11-07 00:02:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:04,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:04,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:04,977 INFO L225 Difference]: With dead ends: 510 [2020-11-07 00:02:04,978 INFO L226 Difference]: Without dead ends: 315 [2020-11-07 00:02:04,987 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 [2020-11-07 00:02:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-11-07 00:02:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-11-07 00:02:05,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-11-07 00:02:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-11-07 00:02:05,172 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 159 [2020-11-07 00:02:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:05,173 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-11-07 00:02:05,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-11-07 00:02:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:05,179 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:05,179 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] [2020-11-07 00:02:05,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:05,180 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:05,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:05,181 INFO L82 PathProgramCache]: Analyzing trace with hash 340263165, now seen corresponding path program 1 times [2020-11-07 00:02:05,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:05,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534827748] [2020-11-07 00:02:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:05,186 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,708 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:05,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:05,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534827748] [2020-11-07 00:02:05,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:05,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:05,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155512443] [2020-11-07 00:02:05,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:05,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:05,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:05,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:05,810 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-11-07 00:02:06,607 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:07,861 INFO L93 Difference]: Finished difference Result 414 states and 469 transitions. [2020-11-07 00:02:07,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:07,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:07,867 INFO L225 Difference]: With dead ends: 414 [2020-11-07 00:02:07,867 INFO L226 Difference]: Without dead ends: 298 [2020-11-07 00:02:07,869 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 [2020-11-07 00:02:07,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-07 00:02:08,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-11-07 00:02:08,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-07 00:02:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-11-07 00:02:08,007 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 160 [2020-11-07 00:02:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:08,008 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-11-07 00:02:08,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-11-07 00:02:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:02:08,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:08,012 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] [2020-11-07 00:02:08,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:08,013 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:08,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:08,013 INFO L82 PathProgramCache]: Analyzing trace with hash 541278922, now seen corresponding path program 1 times [2020-11-07 00:02:08,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:08,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655304532] [2020-11-07 00:02:08,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:08,018 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,506 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:02:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:08,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655304532] [2020-11-07 00:02:08,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:08,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:02:08,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576598606] [2020-11-07 00:02:08,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:02:08,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:08,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:02:08,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:02:08,713 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 10 states. [2020-11-07 00:02:09,415 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:09,891 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:10,282 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:02:10,660 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:11,045 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:11,407 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:12,552 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:15,565 INFO L93 Difference]: Finished difference Result 720 states and 842 transitions. [2020-11-07 00:02:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:02:15,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:02:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:15,574 INFO L225 Difference]: With dead ends: 720 [2020-11-07 00:02:15,574 INFO L226 Difference]: Without dead ends: 574 [2020-11-07 00:02:15,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:02:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-11-07 00:02:15,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 477. [2020-11-07 00:02:15,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-11-07 00:02:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 536 transitions. [2020-11-07 00:02:15,781 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 536 transitions. Word has length 173 [2020-11-07 00:02:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:15,782 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 536 transitions. [2020-11-07 00:02:15,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 536 transitions. [2020-11-07 00:02:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:15,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:15,786 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] [2020-11-07 00:02:15,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:15,787 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:15,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:15,787 INFO L82 PathProgramCache]: Analyzing trace with hash 357046986, now seen corresponding path program 1 times [2020-11-07 00:02:15,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:15,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430274247] [2020-11-07 00:02:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:15,791 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,180 WARN L194 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:16,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:16,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430274247] [2020-11-07 00:02:16,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:16,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:16,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111199190] [2020-11-07 00:02:16,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:16,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:16,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:16,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:16,413 INFO L87 Difference]: Start difference. First operand 477 states and 536 transitions. Second operand 9 states. [2020-11-07 00:02:17,050 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:19,405 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:19,793 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:20,275 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:20,713 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:21,083 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:21,449 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:21,843 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:23,013 INFO L93 Difference]: Finished difference Result 1286 states and 1550 transitions. [2020-11-07 00:02:23,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:23,020 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:23,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:23,027 INFO L225 Difference]: With dead ends: 1286 [2020-11-07 00:02:23,028 INFO L226 Difference]: Without dead ends: 924 [2020-11-07 00:02:23,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-11-07 00:02:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 821. [2020-11-07 00:02:23,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-11-07 00:02:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 949 transitions. [2020-11-07 00:02:23,404 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 949 transitions. Word has length 178 [2020-11-07 00:02:23,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:23,405 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 949 transitions. [2020-11-07 00:02:23,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:23,405 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 949 transitions. [2020-11-07 00:02:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:23,410 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:23,411 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] [2020-11-07 00:02:23,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:23,411 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:23,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:23,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1939822395, now seen corresponding path program 1 times [2020-11-07 00:02:23,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:23,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22708495] [2020-11-07 00:02:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:23,416 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,769 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:23,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:02:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:23,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22708495] [2020-11-07 00:02:23,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:23,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:23,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743475585] [2020-11-07 00:02:23,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:23,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:23,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:23,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:23,957 INFO L87 Difference]: Start difference. First operand 821 states and 949 transitions. Second operand 6 states. [2020-11-07 00:02:24,646 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:25,833 INFO L93 Difference]: Finished difference Result 1359 states and 1632 transitions. [2020-11-07 00:02:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:02:25,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:02:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:25,839 INFO L225 Difference]: With dead ends: 1359 [2020-11-07 00:02:25,839 INFO L226 Difference]: Without dead ends: 653 [2020-11-07 00:02:25,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:02:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-11-07 00:02:26,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 576. [2020-11-07 00:02:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-11-07 00:02:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 627 transitions. [2020-11-07 00:02:26,114 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 627 transitions. Word has length 183 [2020-11-07 00:02:26,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:26,115 INFO L481 AbstractCegarLoop]: Abstraction has 576 states and 627 transitions. [2020-11-07 00:02:26,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:26,115 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 627 transitions. [2020-11-07 00:02:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:26,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:26,121 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] [2020-11-07 00:02:26,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:26,121 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:26,122 INFO L82 PathProgramCache]: Analyzing trace with hash -432921097, now seen corresponding path program 1 times [2020-11-07 00:02:26,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:26,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301466166] [2020-11-07 00:02:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:26,125 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:26,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:26,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:26,519 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:26,520 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:26,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:26,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:26 BoogieIcfgContainer [2020-11-07 00:02:26,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:26,562 INFO L168 Benchmark]: Toolchain (without parser) took 27194.46 ms. Allocated memory was 151.0 MB in the beginning and 540.0 MB in the end (delta: 389.0 MB). Free memory was 126.1 MB in the beginning and 268.2 MB in the end (delta: -142.1 MB). Peak memory consumption was 247.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:26,563 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:26,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.41 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.7 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:26,571 INFO L168 Benchmark]: Boogie Preprocessor took 138.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 99.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:26,572 INFO L168 Benchmark]: RCFGBuilder took 1695.36 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 99.7 MB in the beginning and 166.8 MB in the end (delta: -67.1 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:26,573 INFO L168 Benchmark]: TraceAbstraction took 24748.13 ms. Allocated memory was 203.4 MB in the beginning and 540.0 MB in the end (delta: 336.6 MB). Free memory was 166.3 MB in the beginning and 268.2 MB in the end (delta: -102.0 MB). Peak memory consumption was 234.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:26,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 596.41 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.7 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.7 MB in the beginning and 99.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1695.36 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 99.7 MB in the beginning and 166.8 MB in the end (delta: -67.1 MB). Peak memory consumption was 54.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24748.13 ms. Allocated memory was 203.4 MB in the beginning and 540.0 MB in the end (delta: 336.6 MB). Free memory was 166.3 MB in the beginning and 268.2 MB in the end (delta: -102.0 MB). Peak memory consumption was 234.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L800] FCALL select_helpers() [L801] FCALL select_features() [L802] CALL, EXPR valid_product() [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] RET, EXPR valid_product() [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L806] FCALL setup() [L807] CALL runTest() [L786] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND FALSE !(\read(tmp___2)) [L460] tmp___1 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___1) [L464] CALL stopSystem() [L690] COND FALSE !(\read(pumpRunning)) [L697] systemActive = 0 [L464] RET stopSystem() [L471] CALL timeShift() [L499] COND FALSE !(\read(pumpRunning)) [L506] COND FALSE !(\read(systemActive)) [L514] CALL __utac_acc__Specification3_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L826] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] RET, EXPR isMethaneLevelCritical() [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L832] CALL, EXPR getWaterLevel() [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] RET, EXPR getWaterLevel() [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L836] CALL, EXPR isPumpRunning() [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); [L836] RET, EXPR isPumpRunning() [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) [L842] CALL __automaton_fail() [L714] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product32.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1244 SDtfs, 2149 SDslu, 1750 SDs, 0 SdLazy, 3479 SolverSat, 798 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 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...