/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:28,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:28,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:28,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:28,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:28,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:28,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:28,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:28,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:28,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:28,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:28,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:28,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:28,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:28,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:28,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:28,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:28,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:28,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:28,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:28,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:28,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:28,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:28,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:28,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:28,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:28,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:28,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:28,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:28,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:28,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:28,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:28,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:28,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:28,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:28,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:28,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:28,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:28,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:28,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:28,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:28,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:01:28,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:28,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:28,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:28,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:28,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:28,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:28,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:28,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:28,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:28,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:28,973 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:28,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:28,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:28,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:28,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:28,975 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:28,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:28,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:28,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:28,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:28,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:28,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:28,977 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:29,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:29,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:29,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:29,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:29,456 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:29,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-11-07 00:01:29,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8135fc6e/4a3f422d971640078810a4ee89b6b8dc/FLAGb60e4543b [2020-11-07 00:01:30,238 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:30,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-11-07 00:01:30,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8135fc6e/4a3f422d971640078810a4ee89b6b8dc/FLAGb60e4543b [2020-11-07 00:01:30,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8135fc6e/4a3f422d971640078810a4ee89b6b8dc [2020-11-07 00:01:30,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:30,545 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:30,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:30,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:30,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:30,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:30" (1/1) ... [2020-11-07 00:01:30,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228a6f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:30, skipping insertion in model container [2020-11-07 00:01:30,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:30" (1/1) ... [2020-11-07 00:01:30,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:30,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:30,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:31,011 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:31,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:31,209 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:31,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31 WrapperNode [2020-11-07 00:01:31,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:31,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:31,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:31,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:31,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... [2020-11-07 00:01:31,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:31,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:31,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:31,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:31,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:01:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:32,600 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:32,600 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:32,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:32 BoogieIcfgContainer [2020-11-07 00:01:32,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:32,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:32,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:32,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:32,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:30" (1/3) ... [2020-11-07 00:01:32,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ef7221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:32, skipping insertion in model container [2020-11-07 00:01:32,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:31" (2/3) ... [2020-11-07 00:01:32,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ef7221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:32, skipping insertion in model container [2020-11-07 00:01:32,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:32" (3/3) ... [2020-11-07 00:01:32,613 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-11-07 00:01:32,634 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:32,639 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:32,653 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:32,688 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:32,688 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:32,689 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:32,689 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:32,689 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:32,689 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:32,690 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:32,690 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-11-07 00:01:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:32,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:32,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:32,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:32,756 INFO L82 PathProgramCache]: Analyzing trace with hash 886937434, now seen corresponding path program 1 times [2020-11-07 00:01:32,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:32,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428375913] [2020-11-07 00:01:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:32,833 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,600 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:33,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428375913] [2020-11-07 00:01:33,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:33,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:33,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069523439] [2020-11-07 00:01:33,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:33,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:33,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:33,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:33,838 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-11-07 00:01:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:35,737 INFO L93 Difference]: Finished difference Result 501 states and 600 transitions. [2020-11-07 00:01:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:01:35,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:01:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:35,757 INFO L225 Difference]: With dead ends: 501 [2020-11-07 00:01:35,758 INFO L226 Difference]: Without dead ends: 310 [2020-11-07 00:01:35,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-07 00:01:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-11-07 00:01:36,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-11-07 00:01:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-11-07 00:01:36,038 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 159 [2020-11-07 00:01:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:36,042 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-11-07 00:01:36,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:01:36,042 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-11-07 00:01:36,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:01:36,058 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:36,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:36,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:01:36,059 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:36,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:36,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1464709532, now seen corresponding path program 1 times [2020-11-07 00:01:36,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:36,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607076400] [2020-11-07 00:01:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:36,070 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,554 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:36,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:01:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:01:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:36,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607076400] [2020-11-07 00:01:36,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:36,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:01:36,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839364156] [2020-11-07 00:01:36,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:01:36,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:36,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:01:36,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:01:36,689 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-11-07 00:01:37,708 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:38,971 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2020-11-07 00:01:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:01:38,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:01:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:38,982 INFO L225 Difference]: With dead ends: 409 [2020-11-07 00:01:38,983 INFO L226 Difference]: Without dead ends: 293 [2020-11-07 00:01:38,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:01:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-11-07 00:01:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-11-07 00:01:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-11-07 00:01:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-11-07 00:01:39,155 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 160 [2020-11-07 00:01:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:39,158 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-11-07 00:01:39,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:01:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-11-07 00:01:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:01:39,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:39,163 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] [2020-11-07 00:01:39,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:01:39,163 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:39,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1108063253, now seen corresponding path program 1 times [2020-11-07 00:01:39,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:39,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040209056] [2020-11-07 00:01:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:39,169 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,736 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:39,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:01:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:39,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040209056] [2020-11-07 00:01:39,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:39,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:39,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418428597] [2020-11-07 00:01:39,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:39,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:39,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:39,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:39,975 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 9 states. [2020-11-07 00:01:40,624 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:41,118 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:41,478 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:01:41,883 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:42,243 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:42,622 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:43,893 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:46,823 INFO L93 Difference]: Finished difference Result 684 states and 791 transitions. [2020-11-07 00:01:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:46,829 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:01:46,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:46,834 INFO L225 Difference]: With dead ends: 684 [2020-11-07 00:01:46,834 INFO L226 Difference]: Without dead ends: 542 [2020-11-07 00:01:46,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:01:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-11-07 00:01:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 473. [2020-11-07 00:01:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-11-07 00:01:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 532 transitions. [2020-11-07 00:01:47,062 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 532 transitions. Word has length 169 [2020-11-07 00:01:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:47,063 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 532 transitions. [2020-11-07 00:01:47,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:47,063 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 532 transitions. [2020-11-07 00:01:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:01:47,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:47,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:47,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:01:47,071 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:47,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:47,072 INFO L82 PathProgramCache]: Analyzing trace with hash 852257396, now seen corresponding path program 1 times [2020-11-07 00:01:47,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:47,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061190119] [2020-11-07 00:01:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:47,077 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,563 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:47,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:01:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:01:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:01:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:01:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:47,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061190119] [2020-11-07 00:01:47,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:47,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:01:47,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173816805] [2020-11-07 00:01:47,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:01:47,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:47,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:01:47,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:01:47,747 INFO L87 Difference]: Start difference. First operand 473 states and 532 transitions. Second operand 9 states. [2020-11-07 00:01:48,464 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:51,049 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:51,493 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:51,981 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:52,460 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:52,932 WARN L194 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:53,340 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:53,756 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:54,930 INFO L93 Difference]: Finished difference Result 1271 states and 1532 transitions. [2020-11-07 00:01:54,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:01:54,931 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:01:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:54,939 INFO L225 Difference]: With dead ends: 1271 [2020-11-07 00:01:54,939 INFO L226 Difference]: Without dead ends: 913 [2020-11-07 00:01:54,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:01:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-11-07 00:01:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 813. [2020-11-07 00:01:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-11-07 00:01:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 941 transitions. [2020-11-07 00:01:55,388 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 941 transitions. Word has length 178 [2020-11-07 00:01:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:55,390 INFO L481 AbstractCegarLoop]: Abstraction has 813 states and 941 transitions. [2020-11-07 00:01:55,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:01:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 941 transitions. [2020-11-07 00:01:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:01:55,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:55,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:55,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:55,402 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:55,403 INFO L82 PathProgramCache]: Analyzing trace with hash 548422459, now seen corresponding path program 1 times [2020-11-07 00:01:55,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:55,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461026391] [2020-11-07 00:01:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:55,407 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,826 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:55,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:01:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:01:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:01:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:55,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:01:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:01:56,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461026391] [2020-11-07 00:01:56,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:56,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:01:56,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580279749] [2020-11-07 00:01:56,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:01:56,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:56,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:01:56,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:01:56,003 INFO L87 Difference]: Start difference. First operand 813 states and 941 transitions. Second operand 6 states. [2020-11-07 00:01:56,722 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:58,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:58,081 INFO L93 Difference]: Finished difference Result 1296 states and 1543 transitions. [2020-11-07 00:01:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:01:58,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:01:58,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:58,092 INFO L225 Difference]: With dead ends: 1296 [2020-11-07 00:01:58,092 INFO L226 Difference]: Without dead ends: 598 [2020-11-07 00:01:58,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:01:58,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-11-07 00:01:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 568. [2020-11-07 00:01:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-11-07 00:01:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 619 transitions. [2020-11-07 00:01:58,316 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 619 transitions. Word has length 183 [2020-11-07 00:01:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:58,316 INFO L481 AbstractCegarLoop]: Abstraction has 568 states and 619 transitions. [2020-11-07 00:01:58,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:01:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 619 transitions. [2020-11-07 00:01:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:01:58,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:58,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:58,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:58,321 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:01:58,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:58,322 INFO L82 PathProgramCache]: Analyzing trace with hash -209512305, now seen corresponding path program 1 times [2020-11-07 00:01:58,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:58,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722116036] [2020-11-07 00:01:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:58,325 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:58,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:58,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:58,670 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:58,671 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:58,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:01:58,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:58 BoogieIcfgContainer [2020-11-07 00:01:58,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:58,712 INFO L168 Benchmark]: Toolchain (without parser) took 28170.86 ms. Allocated memory was 159.4 MB in the beginning and 506.5 MB in the end (delta: 347.1 MB). Free memory was 135.2 MB in the beginning and 193.1 MB in the end (delta: -58.0 MB). Peak memory consumption was 290.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:58,713 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory is still 133.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:58,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.93 ms. Allocated memory is still 159.4 MB. Free memory was 134.6 MB in the beginning and 113.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:58,721 INFO L168 Benchmark]: Boogie Preprocessor took 109.22 ms. Allocated memory is still 159.4 MB. Free memory was 113.4 MB in the beginning and 140.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:58,721 INFO L168 Benchmark]: RCFGBuilder took 1282.51 ms. Allocated memory is still 159.4 MB. Free memory was 140.3 MB in the beginning and 96.2 MB in the end (delta: 44.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:58,722 INFO L168 Benchmark]: TraceAbstraction took 26103.77 ms. Allocated memory was 159.4 MB in the beginning and 506.5 MB in the end (delta: 347.1 MB). Free memory was 96.2 MB in the beginning and 193.1 MB in the end (delta: -96.9 MB). Peak memory consumption was 250.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:58,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory is still 133.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 663.93 ms. Allocated memory is still 159.4 MB. Free memory was 134.6 MB in the beginning and 113.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 109.22 ms. Allocated memory is still 159.4 MB. Free memory was 113.4 MB in the beginning and 140.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1282.51 ms. Allocated memory is still 159.4 MB. Free memory was 140.3 MB in the beginning and 96.2 MB in the end (delta: 44.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26103.77 ms. Allocated memory was 159.4 MB in the beginning and 506.5 MB in the end (delta: 347.1 MB). Free memory was 96.2 MB in the beginning and 193.1 MB in the end (delta: -96.9 MB). Peak memory consumption was 250.7 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L516] int retValue_acc ; [L517] int tmp ; [L521] FCALL select_helpers() [L522] FCALL select_features() [L523] CALL, EXPR valid_product() [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); [L523] RET, EXPR valid_product() [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) [L527] FCALL setup() [L528] CALL runTest() [L507] CALL test() [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 [L383] COND TRUE 1 [L385] COND TRUE splverifierCounter < 4 [L391] tmp = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp) [L395] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L395] RET waterRise() [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND FALSE !(\read(tmp___2)) [L417] tmp___1 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___1) [L421] CALL stopSystem() [L360] COND FALSE !(\read(pumpRunning)) [L367] systemActive = 0 [L421] RET stopSystem() [L428] CALL timeShift() [L186] COND FALSE !(\read(pumpRunning)) [L193] COND FALSE !(\read(systemActive)) [L201] CALL __utac_acc__Specification3_spec__1() [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; [L147] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L147] RET, EXPR isMethaneLevelCritical() [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) [L153] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L153] RET, EXPR getWaterLevel() [L153] tmp___0 = getWaterLevel() [L155] COND TRUE tmp___0 == 2 [L157] CALL, EXPR isPumpRunning() [L293] int retValue_acc ; [L296] retValue_acc = pumpRunning [L297] return (retValue_acc); [L157] RET, EXPR isPumpRunning() [L157] tmp___1 = isPumpRunning() [L159] COND FALSE !(\read(tmp___1)) [L163] CALL __automaton_fail() [L543] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product23.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 640 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1216 SDtfs, 1633 SDslu, 1579 SDs, 0 SdLazy, 3524 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=813occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 278 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...