/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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:23,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:23,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:23,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:23,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:23,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:23,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:23,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:23,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:23,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:23,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:23,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:23,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:23,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:23,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:23,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:23,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:23,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:23,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:23,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:23,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:23,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:23,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:23,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:23,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:23,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:23,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:23,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:23,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:23,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:23,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:23,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:23,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:23,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:23,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:23,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:23,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:23,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:23,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:23,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:23,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:23,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:57:23,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:23,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:23,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:23,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:23,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:23,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:23,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:23,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:23,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:23,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:23,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:23,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:23,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:23,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:23,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:23,357 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:23,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:23,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:23,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:23,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:23,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:23,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:23,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:23,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:23,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:23,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:23,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:23,835 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:23,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-10-23 19:57:23,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/614d13ee3/103d32d07d4f4a80a7c0dbdbb7331a82/FLAGcb974b429 [2020-10-23 19:57:24,546 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:24,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-10-23 19:57:24,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/614d13ee3/103d32d07d4f4a80a7c0dbdbb7331a82/FLAGcb974b429 [2020-10-23 19:57:24,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/614d13ee3/103d32d07d4f4a80a7c0dbdbb7331a82 [2020-10-23 19:57:24,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:24,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:24,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:24,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:24,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:24,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:24" (1/1) ... [2020-10-23 19:57:24,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bf5314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:24, skipping insertion in model container [2020-10-23 19:57:24,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:24" (1/1) ... [2020-10-23 19:57:24,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:24,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:25,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:25,291 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:25,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:25,525 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:25,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25 WrapperNode [2020-10-23 19:57:25,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:25,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:25,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:25,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:25,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (1/1) ... [2020-10-23 19:57:25,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:25,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:25,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:25,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:25,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (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 [2020-10-23 19:57:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:57:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:57:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:27,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:27,228 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:27,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:27 BoogieIcfgContainer [2020-10-23 19:57:27,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:27,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:27,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:27,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:27,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:24" (1/3) ... [2020-10-23 19:57:27,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6f2b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:27, skipping insertion in model container [2020-10-23 19:57:27,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:25" (2/3) ... [2020-10-23 19:57:27,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6f2b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:27, skipping insertion in model container [2020-10-23 19:57:27,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:27" (3/3) ... [2020-10-23 19:57:27,241 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-10-23 19:57:27,252 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:27,258 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:27,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:27,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:27,296 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:27,296 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:27,296 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:27,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:27,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:27,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:27,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-10-23 19:57:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:27,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:27,341 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] [2020-10-23 19:57:27,342 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]=== [2020-10-23 19:57:27,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:27,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1754551116, now seen corresponding path program 1 times [2020-10-23 19:57:27,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:27,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588827557] [2020-10-23 19:57:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:27,441 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,155 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:28,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588827557] [2020-10-23 19:57:28,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:28,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:28,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726298172] [2020-10-23 19:57:28,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:28,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:28,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:28,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:28,358 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-10-23 19:57:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:30,130 INFO L93 Difference]: Finished difference Result 522 states and 622 transitions. [2020-10-23 19:57:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:30,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:30,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:30,163 INFO L225 Difference]: With dead ends: 522 [2020-10-23 19:57:30,163 INFO L226 Difference]: Without dead ends: 321 [2020-10-23 19:57:30,179 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 [2020-10-23 19:57:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-23 19:57:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 277. [2020-10-23 19:57:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-23 19:57:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 302 transitions. [2020-10-23 19:57:30,394 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 302 transitions. Word has length 159 [2020-10-23 19:57:30,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:30,398 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 302 transitions. [2020-10-23 19:57:30,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 302 transitions. [2020-10-23 19:57:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:30,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:30,415 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] [2020-10-23 19:57:30,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:30,416 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]=== [2020-10-23 19:57:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:30,417 INFO L82 PathProgramCache]: Analyzing trace with hash 81792162, now seen corresponding path program 1 times [2020-10-23 19:57:30,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:30,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896575544] [2020-10-23 19:57:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:30,425 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:30,939 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:31,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896575544] [2020-10-23 19:57:31,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:31,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:31,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978109027] [2020-10-23 19:57:31,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:31,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:31,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:31,089 INFO L87 Difference]: Start difference. First operand 277 states and 302 transitions. Second operand 4 states. [2020-10-23 19:57:31,755 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:32,914 INFO L93 Difference]: Finished difference Result 426 states and 481 transitions. [2020-10-23 19:57:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:32,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:32,920 INFO L225 Difference]: With dead ends: 426 [2020-10-23 19:57:32,920 INFO L226 Difference]: Without dead ends: 304 [2020-10-23 19:57:32,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:57:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-23 19:57:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 267. [2020-10-23 19:57:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-23 19:57:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 289 transitions. [2020-10-23 19:57:33,034 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 289 transitions. Word has length 160 [2020-10-23 19:57:33,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:33,034 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 289 transitions. [2020-10-23 19:57:33,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 289 transitions. [2020-10-23 19:57:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:57:33,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:33,037 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] [2020-10-23 19:57:33,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:33,038 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]=== [2020-10-23 19:57:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:33,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1123190296, now seen corresponding path program 1 times [2020-10-23 19:57:33,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:33,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250962697] [2020-10-23 19:57:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:33,042 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,458 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:57:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:57:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:57:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:57:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:33,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250962697] [2020-10-23 19:57:33,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:33,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:57:33,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171044242] [2020-10-23 19:57:33,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:57:33,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:33,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:57:33,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:57:33,653 INFO L87 Difference]: Start difference. First operand 267 states and 289 transitions. Second operand 10 states. [2020-10-23 19:57:34,288 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:34,689 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:34,995 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:57:35,364 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:35,645 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:35,967 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:36,986 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:40,045 INFO L93 Difference]: Finished difference Result 738 states and 860 transitions. [2020-10-23 19:57:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:57:40,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:57:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:40,061 INFO L225 Difference]: With dead ends: 738 [2020-10-23 19:57:40,061 INFO L226 Difference]: Without dead ends: 586 [2020-10-23 19:57:40,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:57:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-23 19:57:40,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 489. [2020-10-23 19:57:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-10-23 19:57:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 548 transitions. [2020-10-23 19:57:40,292 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 548 transitions. Word has length 173 [2020-10-23 19:57:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:40,292 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 548 transitions. [2020-10-23 19:57:40,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:57:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 548 transitions. [2020-10-23 19:57:40,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:57:40,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:40,297 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] [2020-10-23 19:57:40,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:40,297 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]=== [2020-10-23 19:57:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:40,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1169062268, now seen corresponding path program 1 times [2020-10-23 19:57:40,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:40,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521141546] [2020-10-23 19:57:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:40,302 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,645 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:57:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:57:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:57:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:40,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521141546] [2020-10-23 19:57:40,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:40,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:40,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046596419] [2020-10-23 19:57:40,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:40,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:40,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:40,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:40,851 INFO L87 Difference]: Start difference. First operand 489 states and 548 transitions. Second operand 9 states. [2020-10-23 19:57:41,398 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:43,628 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:43,981 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:44,355 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:44,813 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:45,107 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:45,433 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:45,747 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:46,835 INFO L93 Difference]: Finished difference Result 1318 states and 1592 transitions. [2020-10-23 19:57:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:57:46,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:57:46,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:46,846 INFO L225 Difference]: With dead ends: 1318 [2020-10-23 19:57:46,846 INFO L226 Difference]: Without dead ends: 944 [2020-10-23 19:57:46,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:57:46,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2020-10-23 19:57:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 841. [2020-10-23 19:57:47,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-10-23 19:57:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 967 transitions. [2020-10-23 19:57:47,227 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 967 transitions. Word has length 178 [2020-10-23 19:57:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:47,229 INFO L481 AbstractCegarLoop]: Abstraction has 841 states and 967 transitions. [2020-10-23 19:57:47,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 967 transitions. [2020-10-23 19:57:47,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:47,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:47,247 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] [2020-10-23 19:57:47,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:47,248 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]=== [2020-10-23 19:57:47,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:47,249 INFO L82 PathProgramCache]: Analyzing trace with hash 811852168, now seen corresponding path program 1 times [2020-10-23 19:57:47,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:47,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533577887] [2020-10-23 19:57:47,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:47,257 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,590 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:47,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:57:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:57:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:57:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 19:57:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:47,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533577887] [2020-10-23 19:57:47,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:47,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:57:47,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040648113] [2020-10-23 19:57:47,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:57:47,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:47,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:57:47,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:57:47,779 INFO L87 Difference]: Start difference. First operand 841 states and 967 transitions. Second operand 6 states. [2020-10-23 19:57:48,339 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:50,924 INFO L93 Difference]: Finished difference Result 1925 states and 2322 transitions. [2020-10-23 19:57:50,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 19:57:50,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 19:57:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:50,933 INFO L225 Difference]: With dead ends: 1925 [2020-10-23 19:57:50,933 INFO L226 Difference]: Without dead ends: 1199 [2020-10-23 19:57:50,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:57:50,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-23 19:57:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1098. [2020-10-23 19:57:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2020-10-23 19:57:51,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1253 transitions. [2020-10-23 19:57:51,525 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1253 transitions. Word has length 183 [2020-10-23 19:57:51,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:51,526 INFO L481 AbstractCegarLoop]: Abstraction has 1098 states and 1253 transitions. [2020-10-23 19:57:51,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:57:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1253 transitions. [2020-10-23 19:57:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:51,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:51,530 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] [2020-10-23 19:57:51,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:57:51,530 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]=== [2020-10-23 19:57:51,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:51,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1864034067, now seen corresponding path program 1 times [2020-10-23 19:57:51,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:51,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312107743] [2020-10-23 19:57:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:51,535 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:51,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:51,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:51,874 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:51,874 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:51,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:57:51,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:51 BoogieIcfgContainer [2020-10-23 19:57:51,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:51,902 INFO L168 Benchmark]: Toolchain (without parser) took 27049.48 ms. Allocated memory was 151.0 MB in the beginning and 609.2 MB in the end (delta: 458.2 MB). Free memory was 127.2 MB in the beginning and 380.5 MB in the end (delta: -253.2 MB). Peak memory consumption was 205.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:51,902 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:51,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.74 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 105.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:51,904 INFO L168 Benchmark]: Boogie Preprocessor took 147.32 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 133.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:51,905 INFO L168 Benchmark]: RCFGBuilder took 1555.75 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 89.6 MB in the end (delta: 43.6 MB). Peak memory consumption was 66.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:51,906 INFO L168 Benchmark]: TraceAbstraction took 24666.41 ms. Allocated memory was 151.0 MB in the beginning and 609.2 MB in the end (delta: 458.2 MB). Free memory was 89.1 MB in the beginning and 380.5 MB in the end (delta: -291.4 MB). Peak memory consumption was 166.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:51,909 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 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.74 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 105.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.32 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 133.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1555.75 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 89.6 MB in the end (delta: 43.6 MB). Peak memory consumption was 66.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24666.41 ms. Allocated memory was 151.0 MB in the beginning and 609.2 MB in the end (delta: 458.2 MB). Free memory was 89.1 MB in the beginning and 380.5 MB in the end (delta: -291.4 MB). Peak memory consumption was 166.9 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: [L42] int cleanupTimeShifts = 4; [L231] int waterLevel = 1; [L232] int methaneLevelCritical = 0; [L329] int pumpRunning = 0; [L330] int systemActive = 1; [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 [L540] COND TRUE 1 [L542] COND TRUE splverifierCounter < 4 [L548] tmp = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp) [L552] CALL waterRise() [L249] COND TRUE waterLevel < 2 [L250] waterLevel = waterLevel + 1 [L552] RET waterRise() [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___2)) [L576] tmp___1 = __VERIFIER_nondet_int() [L578] COND TRUE \read(tmp___1) [L580] CALL stopSystem() [L510] COND FALSE !(\read(pumpRunning)) [L517] systemActive = 0 [L580] RET stopSystem() [L587] CALL timeShift() [L336] COND FALSE !(\read(pumpRunning)) [L343] COND FALSE !(\read(systemActive)) [L351] CALL __utac_acc__Specification3_spec__1() [L186] int tmp ; [L187] int tmp___0 ; [L188] int tmp___1 ; [L192] CALL, EXPR isMethaneLevelCritical() [L270] int retValue_acc ; [L273] retValue_acc = methaneLevelCritical [L274] return (retValue_acc); [L192] RET, EXPR isMethaneLevelCritical() [L192] tmp = isMethaneLevelCritical() [L194] COND FALSE !(\read(tmp)) [L198] CALL, EXPR getWaterLevel() [L302] int retValue_acc ; [L305] retValue_acc = waterLevel [L306] return (retValue_acc); [L198] RET, EXPR getWaterLevel() [L198] tmp___0 = getWaterLevel() [L200] COND TRUE tmp___0 == 2 [L202] CALL, EXPR isPumpRunning() [L443] int retValue_acc ; [L446] retValue_acc = pumpRunning [L447] return (retValue_acc); [L202] RET, EXPR isPumpRunning() [L202] tmp___1 = isPumpRunning() [L204] COND FALSE !(\read(tmp___1)) [L208] CALL __automaton_fail() [L223] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product40.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 647 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1326 SDtfs, 2207 SDslu, 1690 SDs, 0 SdLazy, 3857 SolverSat, 782 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1098occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 382 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...