/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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:56:02,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:56:02,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:56:02,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:56:02,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:56:02,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:56:02,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:56:02,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:56:02,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:56:02,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:56:02,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:56:02,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:56:02,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:56:02,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:56:02,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:56:02,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:56:02,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:56:02,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:56:02,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:56:02,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:56:02,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:56:02,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:56:02,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:56:02,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:56:02,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:56:02,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:56:02,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:56:02,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:56:02,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:56:02,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:56:02,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:56:02,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:56:02,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:56:02,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:56:02,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:56:02,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:56:02,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:56:02,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:56:02,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:56:02,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:56:02,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:56:02,888 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 19:56:02,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:56:02,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:56:02,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:56:02,925 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:56:02,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:56:02,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:56:02,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:56:02,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:56:02,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:56:02,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:56:02,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:56:02,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:56:02,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:56:02,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:56:02,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:56:02,928 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:56:02,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:56:02,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:56:02,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:56:02,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:56:02,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:56:02,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:56:02,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:56:03,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:56:03,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:56:03,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:56:03,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:56:03,389 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:56:03,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-10-23 19:56:03,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff70ab1d2/206c9dfed67e4b1e898c50146237e2bd/FLAGf3dffecc9 [2020-10-23 19:56:04,128 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:56:04,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product14.cil.c [2020-10-23 19:56:04,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff70ab1d2/206c9dfed67e4b1e898c50146237e2bd/FLAGf3dffecc9 [2020-10-23 19:56:04,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff70ab1d2/206c9dfed67e4b1e898c50146237e2bd [2020-10-23 19:56:04,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:56:04,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:56:04,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:04,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:56:04,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:56:04,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5bea9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04, skipping insertion in model container [2020-10-23 19:56:04,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:56:04,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:56:04,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:04,970 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:56:05,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:05,087 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:56:05,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05 WrapperNode [2020-10-23 19:56:05,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:05,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:56:05,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:56:05,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:56:05,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (1/1) ... [2020-10-23 19:56:05,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:56:05,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:56:05,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:56:05,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:56:05,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (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 19:56:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:56:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 19:56:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:56:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:56:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:56:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:56:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:56:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:56:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:56:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 19:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:56:06,666 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:56:06,667 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:56:06,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:06 BoogieIcfgContainer [2020-10-23 19:56:06,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:56:06,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:56:06,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:56:06,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:56:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:56:04" (1/3) ... [2020-10-23 19:56:06,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443527ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:06, skipping insertion in model container [2020-10-23 19:56:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:05" (2/3) ... [2020-10-23 19:56:06,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443527ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:06, skipping insertion in model container [2020-10-23 19:56:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:06" (3/3) ... [2020-10-23 19:56:06,679 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2020-10-23 19:56:06,691 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:56:06,698 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:56:06,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:56:06,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:56:06,751 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:56:06,751 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:56:06,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:56:06,751 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:56:06,751 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:56:06,752 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:56:06,752 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:56:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-23 19:56:06,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:56:06,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:06,796 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 19:56:06,797 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 19:56:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:06,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1907868258, now seen corresponding path program 1 times [2020-10-23 19:56:06,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:06,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952820564] [2020-10-23 19:56:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:06,894 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,624 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:07,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:56:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:56:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,799 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 19:56:07,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952820564] [2020-10-23 19:56:07,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:07,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:56:07,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747949340] [2020-10-23 19:56:07,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:56:07,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:07,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:56:07,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:07,827 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-23 19:56:09,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:09,371 INFO L93 Difference]: Finished difference Result 432 states and 516 transitions. [2020-10-23 19:56:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:56:09,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:56:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:09,393 INFO L225 Difference]: With dead ends: 432 [2020-10-23 19:56:09,393 INFO L226 Difference]: Without dead ends: 274 [2020-10-23 19:56:09,398 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 19:56:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-23 19:56:09,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 234. [2020-10-23 19:56:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-23 19:56:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 252 transitions. [2020-10-23 19:56:09,555 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 252 transitions. Word has length 159 [2020-10-23 19:56:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:09,559 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 252 transitions. [2020-10-23 19:56:09,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:56:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 252 transitions. [2020-10-23 19:56:09,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:56:09,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:09,577 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 19:56:09,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:56:09,577 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 19:56:09,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1570204456, now seen corresponding path program 1 times [2020-10-23 19:56:09,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:09,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105238540] [2020-10-23 19:56:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:09,588 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,160 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:10,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:56:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:56:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:56:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:10,289 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 19:56:10,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105238540] [2020-10-23 19:56:10,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:10,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:56:10,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972237030] [2020-10-23 19:56:10,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:56:10,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:10,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:56:10,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:56:10,295 INFO L87 Difference]: Start difference. First operand 234 states and 252 transitions. Second operand 4 states. [2020-10-23 19:56:11,156 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:12,156 INFO L93 Difference]: Finished difference Result 342 states and 383 transitions. [2020-10-23 19:56:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:56:12,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:56:12,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:12,164 INFO L225 Difference]: With dead ends: 342 [2020-10-23 19:56:12,164 INFO L226 Difference]: Without dead ends: 257 [2020-10-23 19:56:12,171 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 [2020-10-23 19:56:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-23 19:56:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 224. [2020-10-23 19:56:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 19:56:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 239 transitions. [2020-10-23 19:56:12,273 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 239 transitions. Word has length 160 [2020-10-23 19:56:12,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:12,274 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 239 transitions. [2020-10-23 19:56:12,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:56:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 239 transitions. [2020-10-23 19:56:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:56:12,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:12,277 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 19:56:12,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:56:12,278 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 19:56:12,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:12,278 INFO L82 PathProgramCache]: Analyzing trace with hash -779210482, now seen corresponding path program 1 times [2020-10-23 19:56:12,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:12,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591105200] [2020-10-23 19:56:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:12,282 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,904 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:12,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:56:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:56:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:56:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:13,143 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 19:56:13,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591105200] [2020-10-23 19:56:13,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:13,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:56:13,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025993165] [2020-10-23 19:56:13,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:56:13,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:13,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:56:13,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:56:13,149 INFO L87 Difference]: Start difference. First operand 224 states and 239 transitions. Second operand 10 states. [2020-10-23 19:56:13,785 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:14,244 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:56:14,643 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:56:15,041 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:15,432 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:15,798 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:17,500 INFO L93 Difference]: Finished difference Result 388 states and 445 transitions. [2020-10-23 19:56:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:56:17,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:56:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:17,506 INFO L225 Difference]: With dead ends: 388 [2020-10-23 19:56:17,506 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 19:56:17,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:56:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 19:56:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 224. [2020-10-23 19:56:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 19:56:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2020-10-23 19:56:17,590 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 173 [2020-10-23 19:56:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:17,591 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2020-10-23 19:56:17,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:56:17,591 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2020-10-23 19:56:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:56:17,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:17,594 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] [2020-10-23 19:56:17,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:56:17,594 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 19:56:17,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:17,595 INFO L82 PathProgramCache]: Analyzing trace with hash 640919793, now seen corresponding path program 1 times [2020-10-23 19:56:17,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:17,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794342233] [2020-10-23 19:56:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:17,599 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,005 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:18,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:56:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 19:56:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 19:56:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-23 19:56:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:18,194 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 19:56:18,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794342233] [2020-10-23 19:56:18,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:18,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:56:18,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719319428] [2020-10-23 19:56:18,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:56:18,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:18,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:56:18,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:56:18,197 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 10 states. [2020-10-23 19:56:18,940 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:21,232 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:21,715 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:22,143 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:22,558 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:22,948 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:23,595 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:24,071 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:24,879 INFO L93 Difference]: Finished difference Result 599 states and 741 transitions. [2020-10-23 19:56:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 19:56:24,880 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-10-23 19:56:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:24,887 INFO L225 Difference]: With dead ends: 599 [2020-10-23 19:56:24,887 INFO L226 Difference]: Without dead ends: 490 [2020-10-23 19:56:24,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-23 19:56:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-23 19:56:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 324. [2020-10-23 19:56:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-23 19:56:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 355 transitions. [2020-10-23 19:56:25,056 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 355 transitions. Word has length 181 [2020-10-23 19:56:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:25,059 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 355 transitions. [2020-10-23 19:56:25,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:56:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 355 transitions. [2020-10-23 19:56:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-23 19:56:25,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:25,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:56:25,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:56:25,067 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 19:56:25,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:25,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1595947961, now seen corresponding path program 1 times [2020-10-23 19:56:25,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:25,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108096490] [2020-10-23 19:56:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:25,079 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:25,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:25,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:25,488 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:25,488 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:25,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:25,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:25 BoogieIcfgContainer [2020-10-23 19:56:25,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:25,517 INFO L168 Benchmark]: Toolchain (without parser) took 21057.92 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 128.4 MB in the beginning and 259.9 MB in the end (delta: -131.5 MB). Peak memory consumption was 138.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:25,518 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.6 MB in the end (delta: 66.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:25,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.08 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 107.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:25,519 INFO L168 Benchmark]: Boogie Preprocessor took 116.61 ms. Allocated memory is still 153.1 MB. Free memory was 107.6 MB in the beginning and 135.1 MB in the end (delta: -27.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:25,520 INFO L168 Benchmark]: RCFGBuilder took 1463.01 ms. Allocated memory is still 153.1 MB. Free memory was 135.1 MB in the beginning and 73.8 MB in the end (delta: 61.3 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:25,521 INFO L168 Benchmark]: TraceAbstraction took 18843.47 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 73.3 MB in the beginning and 259.9 MB in the end (delta: -186.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:25,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.6 MB in the end (delta: 66.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 617.08 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 107.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.61 ms. Allocated memory is still 153.1 MB. Free memory was 107.6 MB in the beginning and 135.1 MB in the end (delta: -27.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1463.01 ms. Allocated memory is still 153.1 MB. Free memory was 135.1 MB in the beginning and 73.8 MB in the end (delta: 61.3 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18843.47 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 73.3 MB in the beginning and 259.9 MB in the end (delta: -186.6 MB). Peak memory consumption was 81.3 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: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L460] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L727] int cleanupTimeShifts = 4; [L823] int waterLevel = 1; [L824] int methaneLevelCritical = 0; [L800] int retValue_acc ; [L801] int tmp ; [L805] FCALL select_helpers() [L806] FCALL select_features() [L807] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L807] RET, EXPR valid_product() [L807] tmp = valid_product() [L809] COND TRUE \read(tmp) [L811] FCALL setup() [L812] CALL runTest() [L794] CALL test() [L661] int splverifierCounter ; [L662] int tmp ; [L663] int tmp___0 ; [L664] int tmp___1 ; [L665] int tmp___2 ; [L668] splverifierCounter = 0 [L670] COND TRUE 1 [L672] COND TRUE splverifierCounter < 4 [L678] tmp = __VERIFIER_nondet_int() [L680] COND TRUE \read(tmp) [L682] CALL waterRise() [L841] COND TRUE waterLevel < 2 [L842] waterLevel = waterLevel + 1 [L682] RET waterRise() [L688] tmp___0 = __VERIFIER_nondet_int() [L690] COND FALSE !(\read(tmp___0)) [L698] tmp___2 = __VERIFIER_nondet_int() [L700] COND TRUE \read(tmp___2) [L702] CALL startSystem() [L286] systemActive = 1 [L702] RET startSystem() [L715] CALL timeShift() [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L149] CALL processEnvironment() [L169] int tmp ; [L172] COND FALSE !(\read(pumpRunning)) [L187] FCALL processEnvironment__wrappee__methaneQuery() [L149] RET processEnvironment() [L155] CALL __utac_acc__Specification3_spec__1() [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L99] CALL, EXPR isMethaneLevelCritical() [L862] int retValue_acc ; [L865] retValue_acc = methaneLevelCritical [L866] return (retValue_acc); [L99] RET, EXPR isMethaneLevelCritical() [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L105] CALL, EXPR getWaterLevel() [L894] int retValue_acc ; [L897] retValue_acc = waterLevel [L898] return (retValue_acc); [L105] RET, EXPR getWaterLevel() [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L109] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L109] RET, EXPR isPumpRunning() [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) [L115] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product14.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 616 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 859 SDtfs, 1362 SDslu, 1284 SDs, 0 SdLazy, 2367 SolverSat, 475 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...