/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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:56:02,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:56:02,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:56:02,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:56:02,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:56:02,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:56:02,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:56:02,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:56:02,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:56:02,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:56:02,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:56:02,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:56:02,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:56:02,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:56:02,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:56:02,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:56:02,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:56:02,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:56:02,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:56:02,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:56:02,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:56:02,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:56:02,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:56:02,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:56:02,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:56:02,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:56:02,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:56:02,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:56:02,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:56:02,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:56:02,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:56:02,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:56:02,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:56:02,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:56:02,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:56:02,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:56:02,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:56:02,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:56:02,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:56:02,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:56:02,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:56:02,303 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 19:56:02,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:56:02,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:56:02,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:56:02,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:56:02,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:56:02,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:56:02,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:56:02,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:56:02,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:56:02,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:56:02,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:56:02,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:56:02,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:56:02,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:56:02,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:56:02,333 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:56:02,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:56:02,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:56:02,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:56:02,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:56:02,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:56:02,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:56:02,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:56:02,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:56:02,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:56:02,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:56:02,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:56:02,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:56:02,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-10-23 19:56:02,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b32bca48/c2c51b60ecc64f52b9bb901bfc0c41bc/FLAG45b31a480 [2020-10-23 19:56:03,589 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:56:03,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-10-23 19:56:03,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b32bca48/c2c51b60ecc64f52b9bb901bfc0c41bc/FLAG45b31a480 [2020-10-23 19:56:03,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b32bca48/c2c51b60ecc64f52b9bb901bfc0c41bc [2020-10-23 19:56:03,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:56:03,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:56:03,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:03,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:56:03,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:56:03,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:03" (1/1) ... [2020-10-23 19:56:03,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15330b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:03, skipping insertion in model container [2020-10-23 19:56:03,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:56:03" (1/1) ... [2020-10-23 19:56:03,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:56:03,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:56:04,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:04,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:56:04,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:04,467 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:56:04,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04 WrapperNode [2020-10-23 19:56:04,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:04,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:56:04,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:56:04,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:56:04,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (1/1) ... [2020-10-23 19:56:04,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:56:04,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:56:04,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:56:04,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:56:04,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (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 19:56:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:56:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:56:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:56:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:56:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:56:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:56:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 19:56:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:56:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:56:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:56:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:56:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:56:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:56:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:56:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:56:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:56:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:56:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:56:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:56:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:56:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:56:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:56:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:56:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:56:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:56:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:56:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:56:05,730 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:56:05,730 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:56:05,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:05 BoogieIcfgContainer [2020-10-23 19:56:05,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:56:05,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:56:05,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:56:05,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:56:05,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:56:03" (1/3) ... [2020-10-23 19:56:05,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ead8183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:05, skipping insertion in model container [2020-10-23 19:56:05,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:04" (2/3) ... [2020-10-23 19:56:05,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ead8183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:05, skipping insertion in model container [2020-10-23 19:56:05,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:05" (3/3) ... [2020-10-23 19:56:05,742 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-10-23 19:56:05,754 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:56:05,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:56:05,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:56:05,798 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:56:05,799 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:56:05,799 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:56:05,799 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:56:05,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:56:05,800 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:56:05,800 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:56:05,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:56:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-10-23 19:56:05,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:56:05,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:05,844 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 19:56:05,845 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 19:56:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:05,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2007921892, now seen corresponding path program 1 times [2020-10-23 19:56:05,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:05,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053261795] [2020-10-23 19:56:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:05,941 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,547 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:06,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:56:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:56:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:06,734 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 19:56:06,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053261795] [2020-10-23 19:56:06,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:06,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:56:06,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789839532] [2020-10-23 19:56:06,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:56:06,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:06,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:56:06,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:06,770 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-10-23 19:56:08,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:08,262 INFO L93 Difference]: Finished difference Result 423 states and 506 transitions. [2020-10-23 19:56:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:56:08,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:56:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:08,297 INFO L225 Difference]: With dead ends: 423 [2020-10-23 19:56:08,298 INFO L226 Difference]: Without dead ends: 269 [2020-10-23 19:56:08,308 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 19:56:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-23 19:56:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 230. [2020-10-23 19:56:08,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 19:56:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2020-10-23 19:56:08,498 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 159 [2020-10-23 19:56:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:08,501 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2020-10-23 19:56:08,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:56:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2020-10-23 19:56:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:56:08,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:08,516 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 19:56:08,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:56:08,518 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 19:56:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -815696678, now seen corresponding path program 1 times [2020-10-23 19:56:08,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:08,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423210790] [2020-10-23 19:56:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:08,525 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,050 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:09,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:56:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:56:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:56:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:09,180 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 19:56:09,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423210790] [2020-10-23 19:56:09,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:09,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:56:09,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657329914] [2020-10-23 19:56:09,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:56:09,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:09,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:56:09,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:56:09,185 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 4 states. [2020-10-23 19:56:10,035 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:10,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:10,899 INFO L93 Difference]: Finished difference Result 337 states and 377 transitions. [2020-10-23 19:56:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:56:10,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:56:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:10,904 INFO L225 Difference]: With dead ends: 337 [2020-10-23 19:56:10,904 INFO L226 Difference]: Without dead ends: 252 [2020-10-23 19:56:10,906 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 19:56:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-23 19:56:11,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-10-23 19:56:11,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 19:56:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-10-23 19:56:11,024 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 160 [2020-10-23 19:56:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:11,025 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-10-23 19:56:11,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:56:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-10-23 19:56:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:56:11,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:11,028 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] [2020-10-23 19:56:11,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:56:11,029 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 19:56:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:11,029 INFO L82 PathProgramCache]: Analyzing trace with hash -106407251, now seen corresponding path program 1 times [2020-10-23 19:56:11,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:11,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431101090] [2020-10-23 19:56:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:11,034 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,675 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:11,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:56:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:56:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:11,915 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 19:56:11,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431101090] [2020-10-23 19:56:11,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:11,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:56:11,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621681255] [2020-10-23 19:56:11,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:56:11,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:11,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:56:11,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:56:11,918 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 9 states. [2020-10-23 19:56:12,515 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:12,978 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:56:13,353 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:56:13,743 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:14,114 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:14,483 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:15,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:15,928 INFO L93 Difference]: Finished difference Result 357 states and 402 transitions. [2020-10-23 19:56:15,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:56:15,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:56:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:15,932 INFO L225 Difference]: With dead ends: 357 [2020-10-23 19:56:15,932 INFO L226 Difference]: Without dead ends: 252 [2020-10-23 19:56:15,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:56:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-23 19:56:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-10-23 19:56:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 19:56:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2020-10-23 19:56:16,033 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 169 [2020-10-23 19:56:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:16,035 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2020-10-23 19:56:16,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:56:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2020-10-23 19:56:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 19:56:16,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:16,039 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] [2020-10-23 19:56:16,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:56:16,040 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 19:56:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash 883200755, now seen corresponding path program 1 times [2020-10-23 19:56:16,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:16,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976861090] [2020-10-23 19:56:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:16,046 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,535 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:16,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:56:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:56:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:56:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:56:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:56:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:16,742 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 19:56:16,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976861090] [2020-10-23 19:56:16,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:16,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:56:16,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892273575] [2020-10-23 19:56:16,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:56:16,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:16,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:56:16,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:56:16,746 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 9 states. [2020-10-23 19:56:17,369 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:19,345 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:19,778 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:20,175 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:20,557 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:20,926 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:21,505 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:21,904 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:22,261 INFO L93 Difference]: Finished difference Result 496 states and 587 transitions. [2020-10-23 19:56:22,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:56:22,262 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-10-23 19:56:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:22,267 INFO L225 Difference]: With dead ends: 496 [2020-10-23 19:56:22,267 INFO L226 Difference]: Without dead ends: 391 [2020-10-23 19:56:22,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:56:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-23 19:56:22,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 316. [2020-10-23 19:56:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-10-23 19:56:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-10-23 19:56:22,421 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 177 [2020-10-23 19:56:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:22,421 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-10-23 19:56:22,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:56:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-10-23 19:56:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 19:56:22,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:22,425 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] [2020-10-23 19:56:22,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:56:22,425 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 19:56:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:22,426 INFO L82 PathProgramCache]: Analyzing trace with hash 556924098, now seen corresponding path program 1 times [2020-10-23 19:56:22,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:22,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415044503] [2020-10-23 19:56:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:22,429 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,798 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:56:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:56:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:56:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:56:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:56:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 19:56:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:22,925 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 19:56:22,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415044503] [2020-10-23 19:56:22,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:22,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:56:22,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635387553] [2020-10-23 19:56:22,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:56:22,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:22,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:56:22,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:56:22,928 INFO L87 Difference]: Start difference. First operand 316 states and 347 transitions. Second operand 6 states. [2020-10-23 19:56:23,525 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:24,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:24,250 INFO L93 Difference]: Finished difference Result 486 states and 552 transitions. [2020-10-23 19:56:24,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:56:24,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-10-23 19:56:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:24,256 INFO L225 Difference]: With dead ends: 486 [2020-10-23 19:56:24,256 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 19:56:24,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:56:24,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 19:56:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 264. [2020-10-23 19:56:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-23 19:56:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 279 transitions. [2020-10-23 19:56:24,372 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 279 transitions. Word has length 182 [2020-10-23 19:56:24,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:24,372 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 279 transitions. [2020-10-23 19:56:24,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:56:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 279 transitions. [2020-10-23 19:56:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 19:56:24,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:24,375 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] [2020-10-23 19:56:24,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:24,375 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:56:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:24,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1284817486, now seen corresponding path program 1 times [2020-10-23 19:56:24,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:24,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734906453] [2020-10-23 19:56:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:24,379 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:24,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:24,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:24,783 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:24,783 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:24,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:56:24,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:24 BoogieIcfgContainer [2020-10-23 19:56:24,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:24,824 INFO L168 Benchmark]: Toolchain (without parser) took 20898.49 ms. Allocated memory was 151.0 MB in the beginning and 399.5 MB in the end (delta: 248.5 MB). Free memory was 126.6 MB in the beginning and 259.1 MB in the end (delta: -132.5 MB). Peak memory consumption was 116.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:24,826 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 124.9 MB in the end (delta: 94.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:24,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:24,833 INFO L168 Benchmark]: Boogie Preprocessor took 93.24 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 102.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:24,835 INFO L168 Benchmark]: RCFGBuilder took 1170.27 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 102.1 MB in the beginning and 140.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:24,836 INFO L168 Benchmark]: TraceAbstraction took 19085.79 ms. Allocated memory was 191.9 MB in the beginning and 399.5 MB in the end (delta: 207.6 MB). Free memory was 140.3 MB in the beginning and 259.1 MB in the end (delta: -118.7 MB). Peak memory consumption was 88.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:24,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 124.9 MB in the end (delta: 94.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 535.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 105.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.24 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 102.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1170.27 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 102.1 MB in the beginning and 140.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19085.79 ms. Allocated memory was 191.9 MB in the beginning and 399.5 MB in the end (delta: 207.6 MB). Free memory was 140.3 MB in the beginning and 259.1 MB in the end (delta: -118.7 MB). Peak memory consumption was 88.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L251] int retValue_acc ; [L252] int tmp ; [L256] FCALL select_helpers() [L257] FCALL select_features() [L258] CALL, EXPR valid_product() [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L258] RET, EXPR valid_product() [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) [L262] FCALL setup() [L263] CALL runTest() [L245] CALL test() [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 [L472] COND TRUE 1 [L474] COND TRUE splverifierCounter < 4 [L480] tmp = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp) [L484] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L484] RET waterRise() [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) [L515] CALL timeShift() [L285] COND FALSE !(\read(pumpRunning)) [L292] COND TRUE \read(systemActive) [L294] CALL processEnvironment() [L314] int tmp ; [L317] COND FALSE !(\read(pumpRunning)) [L332] FCALL processEnvironment__wrappee__methaneQuery() [L294] RET processEnvironment() [L300] CALL __utac_acc__Specification3_spec__1() [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L435] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L435] RET, EXPR isMethaneLevelCritical() [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L441] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L441] RET, EXPR getWaterLevel() [L441] tmp___0 = getWaterLevel() [L443] COND TRUE tmp___0 == 2 [L445] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L445] RET, EXPR isPumpRunning() [L445] tmp___1 = isPumpRunning() [L447] COND FALSE !(\read(tmp___1)) [L451] CALL __automaton_fail() [L170] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product13.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 612 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 1490 SDslu, 1262 SDs, 0 SdLazy, 2323 SolverSat, 467 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 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...