/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_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:05:52,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:05:52,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:05:53,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:05:53,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:05:53,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:05:53,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:05:53,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:05:53,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:05:53,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:05:53,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:05:53,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:05:53,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:05:53,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:05:53,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:05:53,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:05:53,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:05:53,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:05:53,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:05:53,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:05:53,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:05:53,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:05:53,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:05:53,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:05:53,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:05:53,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:05:53,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:05:53,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:05:53,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:05:53,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:05:53,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:05:53,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:05:53,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:05:53,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:05:53,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:05:53,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:05:53,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:05:53,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:05:53,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:05:53,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:05:53,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:05:53,113 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 20:05:53,127 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:05:53,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:05:53,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:05:53,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:05:53,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:05:53,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:05:53,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:05:53,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:05:53,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:05:53,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:05:53,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:05:53,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:05:53,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:05:53,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:05:53,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:05:53,132 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:05:53,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:05:53,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:05:53,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:05:53,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:05:53,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:05:53,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:05:53,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:05:53,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:05:53,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:05:53,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:05:53,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:05:53,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:05:53,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2020-10-23 20:05:53,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9287c3cfb/0da468adce3f4e2dbf7d75a33c6875bb/FLAGec02702e6 [2020-10-23 20:05:54,477 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:05:54,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2020-10-23 20:05:54,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9287c3cfb/0da468adce3f4e2dbf7d75a33c6875bb/FLAGec02702e6 [2020-10-23 20:05:54,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9287c3cfb/0da468adce3f4e2dbf7d75a33c6875bb [2020-10-23 20:05:54,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:05:54,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:05:54,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:54,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:05:54,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:05:54,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:54" (1/1) ... [2020-10-23 20:05:54,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a525dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:54, skipping insertion in model container [2020-10-23 20:05:54,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:54" (1/1) ... [2020-10-23 20:05:54,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:05:54,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:05:55,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:55,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:05:55,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:55,386 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:05:55,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55 WrapperNode [2020-10-23 20:05:55,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:55,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:05:55,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:05:55,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:05:55,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:05:55,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:05:55,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:05:55,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:05:55,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (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 20:05:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:05:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:05:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:05:55,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:05:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:05:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:05:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:05:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:05:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:05:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:05:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:05:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:05:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:05:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:05:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:05:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:05:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:05:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:05:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:05:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:05:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:05:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:05:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:05:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:05:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:05:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:05:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:05:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:05:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:05:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:05:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:05:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:05:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:05:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:05:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:05:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:05:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:05:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:55,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:05:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:05:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:05:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:05:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:05:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:05:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:05:55,588 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:05:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:05:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:05:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:05:55,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:05:56,898 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:05:56,898 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:05:56,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:56 BoogieIcfgContainer [2020-10-23 20:05:56,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:05:56,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:05:56,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:05:56,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:05:56,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:05:54" (1/3) ... [2020-10-23 20:05:56,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6579a7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:56, skipping insertion in model container [2020-10-23 20:05:56,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (2/3) ... [2020-10-23 20:05:56,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6579a7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:56, skipping insertion in model container [2020-10-23 20:05:56,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:56" (3/3) ... [2020-10-23 20:05:56,913 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2020-10-23 20:05:56,927 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:05:56,933 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:05:56,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:05:56,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:05:56,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:05:56,978 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:05:56,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:05:56,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:05:56,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:05:56,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:05:56,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:05:57,005 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-23 20:05:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:05:57,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:57,029 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] [2020-10-23 20:05:57,029 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 20:05:57,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:57,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1666648497, now seen corresponding path program 1 times [2020-10-23 20:05:57,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:57,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078709964] [2020-10-23 20:05:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:57,147 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,797 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:57,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:05:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:05:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,992 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 20:05:57,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078709964] [2020-10-23 20:05:57,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:57,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:05:57,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935549250] [2020-10-23 20:05:58,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:05:58,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:58,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:05:58,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:58,023 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-23 20:05:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:59,684 INFO L93 Difference]: Finished difference Result 423 states and 504 transitions. [2020-10-23 20:05:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:05:59,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:05:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:59,708 INFO L225 Difference]: With dead ends: 423 [2020-10-23 20:05:59,708 INFO L226 Difference]: Without dead ends: 269 [2020-10-23 20:05:59,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 20:05:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-23 20:05:59,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 230. [2020-10-23 20:05:59,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 20:05:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2020-10-23 20:05:59,924 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 148 [2020-10-23 20:05:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:59,927 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2020-10-23 20:05:59,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:05:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2020-10-23 20:05:59,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:05:59,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:59,946 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] [2020-10-23 20:05:59,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:05:59,947 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 20:05:59,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:59,951 INFO L82 PathProgramCache]: Analyzing trace with hash 648505480, now seen corresponding path program 1 times [2020-10-23 20:05:59,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:59,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207522271] [2020-10-23 20:05:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:59,965 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,474 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:06:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:06:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,592 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 20:06:00,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207522271] [2020-10-23 20:06:00,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:00,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:06:00,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452063345] [2020-10-23 20:06:00,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:06:00,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:00,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:06:00,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:06:00,596 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 4 states. [2020-10-23 20:06:01,497 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:02,499 INFO L93 Difference]: Finished difference Result 337 states and 375 transitions. [2020-10-23 20:06:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:06:02,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:06:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:02,505 INFO L225 Difference]: With dead ends: 337 [2020-10-23 20:06:02,505 INFO L226 Difference]: Without dead ends: 252 [2020-10-23 20:06:02,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 20:06:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-23 20:06:02,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-10-23 20:06:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 20:06:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2020-10-23 20:06:02,596 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 149 [2020-10-23 20:06:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:02,596 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2020-10-23 20:06:02,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:06:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2020-10-23 20:06:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:06:02,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:02,599 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] [2020-10-23 20:06:02,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:06:02,600 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 20:06:02,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:02,601 INFO L82 PathProgramCache]: Analyzing trace with hash 504340231, now seen corresponding path program 1 times [2020-10-23 20:06:02,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:02,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44302787] [2020-10-23 20:06:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:02,606 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,152 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:06:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:06:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,473 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 20:06:03,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44302787] [2020-10-23 20:06:03,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:03,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:06:03,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388545573] [2020-10-23 20:06:03,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:06:03,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:03,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:06:03,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:06:03,479 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 9 states. [2020-10-23 20:06:04,214 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:04,715 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:05,136 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:05,530 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:05,928 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:06,331 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:07,925 INFO L93 Difference]: Finished difference Result 357 states and 400 transitions. [2020-10-23 20:06:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:06:07,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:06:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:07,931 INFO L225 Difference]: With dead ends: 357 [2020-10-23 20:06:07,931 INFO L226 Difference]: Without dead ends: 252 [2020-10-23 20:06:07,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:06:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-23 20:06:08,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-10-23 20:06:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 20:06:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 233 transitions. [2020-10-23 20:06:08,018 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 233 transitions. Word has length 158 [2020-10-23 20:06:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:08,019 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 233 transitions. [2020-10-23 20:06:08,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:06:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 233 transitions. [2020-10-23 20:06:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:06:08,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:08,022 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] [2020-10-23 20:06:08,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:06:08,022 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 20:06:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:08,023 INFO L82 PathProgramCache]: Analyzing trace with hash 31704470, now seen corresponding path program 1 times [2020-10-23 20:06:08,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:08,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270887870] [2020-10-23 20:06:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:08,027 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,539 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:08,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:06:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:06:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:06:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,763 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 20:06:08,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270887870] [2020-10-23 20:06:08,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:08,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:06:08,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374030173] [2020-10-23 20:06:08,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:06:08,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:06:08,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:06:08,767 INFO L87 Difference]: Start difference. First operand 220 states and 233 transitions. Second operand 14 states. [2020-10-23 20:06:09,573 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:10,118 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:10,541 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:10,960 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:11,382 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:11,810 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:12,771 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:14,095 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:14,547 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:15,045 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:15,543 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:15,939 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:16,381 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:16,767 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:17,162 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:17,579 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:18,029 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:18,588 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:19,040 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:19,502 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:21,184 INFO L93 Difference]: Finished difference Result 612 states and 734 transitions. [2020-10-23 20:06:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:06:21,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2020-10-23 20:06:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:21,194 INFO L225 Difference]: With dead ends: 612 [2020-10-23 20:06:21,194 INFO L226 Difference]: Without dead ends: 507 [2020-10-23 20:06:21,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:06:21,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-23 20:06:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 404. [2020-10-23 20:06:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-10-23 20:06:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 445 transitions. [2020-10-23 20:06:21,451 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 445 transitions. Word has length 166 [2020-10-23 20:06:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:21,454 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 445 transitions. [2020-10-23 20:06:21,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:06:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 445 transitions. [2020-10-23 20:06:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:06:21,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:21,458 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] [2020-10-23 20:06:21,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:06:21,459 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 20:06:21,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:21,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1214378676, now seen corresponding path program 1 times [2020-10-23 20:06:21,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:21,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409660799] [2020-10-23 20:06:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:21,464 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,934 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:06:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:06:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:06:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:06:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 20:06:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:22,141 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 20:06:22,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409660799] [2020-10-23 20:06:22,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:22,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:06:22,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318414180] [2020-10-23 20:06:22,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:06:22,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:22,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:06:22,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:06:22,157 INFO L87 Difference]: Start difference. First operand 404 states and 445 transitions. Second operand 6 states. [2020-10-23 20:06:22,919 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:23,730 INFO L93 Difference]: Finished difference Result 607 states and 690 transitions. [2020-10-23 20:06:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:06:23,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-10-23 20:06:23,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:23,733 INFO L225 Difference]: With dead ends: 607 [2020-10-23 20:06:23,733 INFO L226 Difference]: Without dead ends: 318 [2020-10-23 20:06:23,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:06:23,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-23 20:06:23,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 297. [2020-10-23 20:06:23,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 20:06:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 314 transitions. [2020-10-23 20:06:23,871 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 314 transitions. Word has length 176 [2020-10-23 20:06:23,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:23,872 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 314 transitions. [2020-10-23 20:06:23,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:06:23,872 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 314 transitions. [2020-10-23 20:06:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:06:23,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:23,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:23,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:06:23,877 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 20:06:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:23,878 INFO L82 PathProgramCache]: Analyzing trace with hash 303122645, now seen corresponding path program 1 times [2020-10-23 20:06:23,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:23,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622735890] [2020-10-23 20:06:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:24,050 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:24,322 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:06:24,540 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:24,767 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:24,980 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:06:25,217 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:25,430 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:06:25,650 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:25,881 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:06:26,109 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:06:26,335 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:06:26,557 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:06:26,763 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:06:26,977 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:06:30,015 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:30,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:32,633 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:32,648 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:35,296 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:35,308 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:37,845 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:37,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:40,436 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:40,441 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:42,983 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:42,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:45,478 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:45,483 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,960 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:47,978 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:50,454 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:50,459 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:52,978 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:06:52,984 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,134 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:54,139 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:56,711 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:56,717 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:59,235 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:06:59,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:01,701 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:07:01,706 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:04,257 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:06,767 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:06,772 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,778 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:09,333 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:09,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:11,888 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:11,894 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:14,447 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:14,455 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:16,951 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:16,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:18,176 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:18,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:20,679 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:20,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:23,270 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:23,275 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:24,682 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:24,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:27,220 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:27,225 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:29,776 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:29,780 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:32,235 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:32,239 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:34,838 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:34,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:37,448 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:37,454 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:40,079 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:07:40,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:42,635 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:42,639 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:45,182 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:07:45,189 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:47,729 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:07:47,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:50,336 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:50,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:52,127 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:52,136 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:54,695 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:54,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:56,626 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:07:56,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:59,208 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:07:59,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:01,759 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:04,338 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:04,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:06,912 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:06,916 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:09,541 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:09,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:11,495 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:08:11,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:14,038 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:14,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:16,645 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:08:16,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:18,880 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:08:18,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:21,448 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:08:21,452 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:24,170 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2020-10-23 20:08:24,173 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:24,180 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:24,536 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:24,906 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:25,294 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:25,681 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:26,060 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:26,406 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:26,766 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:27,136 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:27,513 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:27,908 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:28,295 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:28,695 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:08:29,044 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:29,407 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:29,776 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:30,143 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:08:30,148 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:32,768 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:32,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:35,404 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:35,408 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:38,058 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:38,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:40,649 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:40,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:43,246 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:43,249 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:45,823 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:45,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:48,482 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:08:48,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:51,159 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:51,163 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:53,851 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:53,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:56,557 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:56,561 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:59,260 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:08:59,263 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:01,850 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:01,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:04,547 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:04,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:07,334 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:07,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:10,102 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:09:10,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:12,799 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:09:12,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:12,805 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:13,184 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:13,561 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:13,955 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:14,335 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:14,700 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:15,086 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:15,518 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:15,916 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:16,317 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:16,712 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:17,091 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:17,466 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:17,865 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:18,266 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:18,658 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:19,065 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:09:19,066 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:21,616 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:21,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:24,235 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 155 [2020-10-23 20:09:24,239 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:26,806 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:26,809 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:29,423 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:29,430 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:31,813 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:31,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:34,421 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:36,991 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:36,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:39,624 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:39,628 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:42,217 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:42,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:44,836 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:09:44,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:47,411 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:47,414 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:49,470 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:09:49,474 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:52,024 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 155 [2020-10-23 20:09:54,586 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:54,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:57,122 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:09:57,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:59,702 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:09:59,707 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:02,261 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:02,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:04,856 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:07,390 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:07,393 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:09,499 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:09,502 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:12,043 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:12,046 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:14,558 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:14,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:17,130 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:19,684 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:19,687 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:22,198 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:22,201 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:24,239 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:24,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:26,733 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:26,737 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:29,254 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:29,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:31,774 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:31,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:34,335 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-23 20:10:34,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:36,924 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:36,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:39,089 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:10:39,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:39,097 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:41,610 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:10:41,614 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:44,175 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:10:44,177 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:46,672 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:10:46,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:49,318 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:10:49,321 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:51,918 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:10:51,922 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:54,453 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:10:54,455 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:57,005 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:10:59,545 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:10:59,550 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:02,170 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:11:02,173 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:04,840 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:11:04,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:07,486 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:11:07,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:10,066 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:11:10,069 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:12,658 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:11:12,661 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:15,285 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:11:17,864 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:11:17,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:20,512 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:11:20,515 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:20,517 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:23,135 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:23,138 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:25,823 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:25,826 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:28,469 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:28,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:31,102 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:31,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:33,785 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:33,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:36,422 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:36,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:39,050 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:39,053 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:41,709 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:44,362 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:44,366 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:46,961 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:46,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:49,610 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:49,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:52,345 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:52,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:54,980 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:11:54,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:11:57,615 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:11:57,618 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:00,282 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:12:00,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:02,889 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:12:02,891 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:02,894 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:03,223 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:03,557 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:03,884 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:04,233 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:04,583 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:04,944 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:05,297 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:05,659 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:06,025 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:06,386 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:06,753 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:07,130 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:07,500 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:07,860 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:08,229 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:08,591 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:12:08,593 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:08,939 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:09,295 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:09,650 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:10,009 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:10,365 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:10,722 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:11,069 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:11,427 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:11,788 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:12,147 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:12,488 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:12,840 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:13,188 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:13,540 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:13,895 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:14,238 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:14,242 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:14,592 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:14,943 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:15,299 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:15,662 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:16,017 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:16,373 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:16,729 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:17,084 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:17,428 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:17,773 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:12:18,135 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:18,501 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:18,867 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:19,230 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:12:19,597 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:19,948 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:19,950 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:20,304 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:20,678 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:21,047 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:21,390 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:21,744 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:22,097 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:22,455 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:22,806 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:23,164 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:23,539 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:23,885 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:24,233 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:24,593 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:24,950 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:12:25,289 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:25,663 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:12:25,665 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:27,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:27,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:28,137 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:12:28,137 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:12:28,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:12:28,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:12:28 BoogieIcfgContainer [2020-10-23 20:12:28,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:12:28,173 INFO L168 Benchmark]: Toolchain (without parser) took 393397.88 ms. Allocated memory was 154.1 MB in the beginning and 416.3 MB in the end (delta: 262.1 MB). Free memory was 130.2 MB in the beginning and 248.2 MB in the end (delta: -118.0 MB). Peak memory consumption was 145.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:28,173 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:12:28,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.18 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 109.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:28,174 INFO L168 Benchmark]: Boogie Preprocessor took 100.48 ms. Allocated memory is still 154.1 MB. Free memory was 109.2 MB in the beginning and 105.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:28,174 INFO L168 Benchmark]: RCFGBuilder took 1412.21 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 105.1 MB in the beginning and 163.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:28,175 INFO L168 Benchmark]: TraceAbstraction took 391267.67 ms. Allocated memory was 192.9 MB in the beginning and 416.3 MB in the end (delta: 223.3 MB). Free memory was 163.4 MB in the beginning and 248.2 MB in the end (delta: -84.8 MB). Peak memory consumption was 138.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:28,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 128.2 MB in the end (delta: 107.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 605.18 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 109.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 100.48 ms. Allocated memory is still 154.1 MB. Free memory was 109.2 MB in the beginning and 105.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1412.21 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 105.1 MB in the beginning and 163.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 391267.67 ms. Allocated memory was 192.9 MB in the beginning and 416.3 MB in the end (delta: 223.3 MB). Free memory was 163.4 MB in the beginning and 248.2 MB in the end (delta: -84.8 MB). Peak memory consumption was 138.5 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: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L622] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int cleanupTimeShifts = 4; [L892] int retValue_acc ; [L893] int tmp ; [L897] FCALL select_helpers() [L898] FCALL select_features() [L899] CALL, EXPR valid_product() [L328] int retValue_acc ; [L331] retValue_acc = 1 [L332] return (retValue_acc); [L899] RET, EXPR valid_product() [L899] tmp = valid_product() [L901] COND TRUE \read(tmp) [L903] FCALL setup() [L904] CALL runTest() [L886] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) [L77] CALL waterRise() [L382] COND TRUE waterLevel < 2 [L383] waterLevel = waterLevel + 1 [L77] RET waterRise() [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L108] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] FCALL processEnvironment__wrappee__base() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L344] CALL, EXPR getWaterLevel() [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L344] RET, EXPR getWaterLevel() [L344] tmp = getWaterLevel() [L346] COND FALSE !(tmp == 0) [L151] RET __utac_acc__Specification4_spec__1() [L108] RET timeShift() [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) [L77] CALL waterRise() [L382] COND TRUE waterLevel < 2 [L383] waterLevel = waterLevel + 1 [L77] RET waterRise() [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L108] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] FCALL processEnvironment__wrappee__base() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L344] CALL, EXPR getWaterLevel() [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L344] RET, EXPR getWaterLevel() [L344] tmp = getWaterLevel() [L346] COND TRUE tmp == 0 [L348] CALL, EXPR isPumpRunning() [L235] int retValue_acc ; [L238] retValue_acc = pumpRunning [L239] return (retValue_acc); [L348] RET, EXPR isPumpRunning() [L348] tmp___0 = isPumpRunning() [L350] COND TRUE \read(tmp___0) [L352] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product25.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 391.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1008 SDtfs, 1609 SDslu, 1686 SDs, 0 SdLazy, 3202 SolverSat, 494 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=404occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 227 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...