/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_spec2_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:52:57,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:52:57,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:52:57,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:52:57,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:52:57,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:52:57,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:52:57,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:52:57,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:52:57,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:52:57,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:52:57,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:52:57,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:52:57,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:52:57,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:52:57,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:52:57,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:52:57,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:52:57,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:52:57,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:52:57,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:52:57,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:52:57,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:52:57,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:52:57,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:52:57,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:52:57,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:52:57,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:52:57,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:52:57,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:52:57,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:52:57,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:52:57,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:52:57,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:52:57,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:52:57,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:52:57,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:52:57,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:52:57,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:52:57,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:52:57,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:52:57,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:52:57,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:52:57,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:52:57,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:52:57,911 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:52:57,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:52:57,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:52:57,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:52:57,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:52:57,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:52:57,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:52:57,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:52:57,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:52:57,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:52:57,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:52:57,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:52:57,915 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:52:57,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:52:57,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:52:57,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:52:57,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:52:57,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:52:57,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:52:57,916 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:52:58,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:52:58,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:52:58,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:52:58,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:52:58,357 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:52:58,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-11-06 23:52:58,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb01a607/1a2a4cbf3b3245afa0f485afeb42b47c/FLAGa812f2ec5 [2020-11-06 23:52:59,167 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:52:59,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product44.cil.c [2020-11-06 23:52:59,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb01a607/1a2a4cbf3b3245afa0f485afeb42b47c/FLAGa812f2ec5 [2020-11-06 23:52:59,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eb01a607/1a2a4cbf3b3245afa0f485afeb42b47c [2020-11-06 23:52:59,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:52:59,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:52:59,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:52:59,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:52:59,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:52:59,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:59" (1/1) ... [2020-11-06 23:52:59,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e6238f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:52:59, skipping insertion in model container [2020-11-06 23:52:59,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:52:59" (1/1) ... [2020-11-06 23:52:59,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:52:59,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:52:59,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:52:59,884 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:52:59,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:53:00,023 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:53:00,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00 WrapperNode [2020-11-06 23:53:00,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:53:00,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:53:00,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:53:00,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:53:00,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... [2020-11-06 23:53:00,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:53:00,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:53:00,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:53:00,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:53:00,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:53:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:53:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:53:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:53:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:53:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:53:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:53:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:53:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:53:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:53:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:53:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:53:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:53:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-06 23:53:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:53:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:53:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:53:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:53:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:53:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:53:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:53:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:53:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:53:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-11-06 23:53:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-11-06 23:53:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:53:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:53:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:53:00,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:53:00,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:53:00,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:53:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:53:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:53:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:53:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:53:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:53:00,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:53:00,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:53:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:53:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:53:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-06 23:53:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:53:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:53:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:53:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:53:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:53:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:53:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-11-06 23:53:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:53:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:53:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:53:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:53:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:53:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:53:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:53:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:53:01,596 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:53:01,596 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:53:01,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:01 BoogieIcfgContainer [2020-11-06 23:53:01,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:53:01,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:53:01,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:53:01,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:53:01,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:52:59" (1/3) ... [2020-11-06 23:53:01,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f290c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:01, skipping insertion in model container [2020-11-06 23:53:01,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:53:00" (2/3) ... [2020-11-06 23:53:01,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f290c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:53:01, skipping insertion in model container [2020-11-06 23:53:01,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:53:01" (3/3) ... [2020-11-06 23:53:01,608 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-11-06 23:53:01,623 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:53:01,628 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:53:01,641 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:53:01,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:53:01,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:53:01,665 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:53:01,666 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:53:01,666 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:53:01,666 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:53:01,666 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:53:01,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:53:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2020-11-06 23:53:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-11-06 23:53:01,710 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:01,711 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] [2020-11-06 23:53:01,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:01,719 INFO L82 PathProgramCache]: Analyzing trace with hash -327662032, now seen corresponding path program 1 times [2020-11-06 23:53:01,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:01,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862826151] [2020-11-06 23:53:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:01,809 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,436 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-06 23:53:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:02,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862826151] [2020-11-06 23:53:02,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:02,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:53:02,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363727180] [2020-11-06 23:53:02,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:53:02,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:02,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:53:02,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:53:02,686 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 4 states. [2020-11-06 23:53:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:04,482 INFO L93 Difference]: Finished difference Result 509 states and 600 transitions. [2020-11-06 23:53:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 23:53:04,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-11-06 23:53:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:04,502 INFO L225 Difference]: With dead ends: 509 [2020-11-06 23:53:04,503 INFO L226 Difference]: Without dead ends: 324 [2020-11-06 23:53:04,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:53:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-11-06 23:53:04,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 272. [2020-11-06 23:53:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-06 23:53:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-11-06 23:53:04,678 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-11-06 23:53:04,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:04,679 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-11-06 23:53:04,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:53:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-11-06 23:53:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-06 23:53:04,685 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:04,685 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] [2020-11-06 23:53:04,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:53:04,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:04,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1699355746, now seen corresponding path program 1 times [2020-11-06 23:53:04,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:04,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958216175] [2020-11-06 23:53:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:04,692 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,230 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:05,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-06 23:53:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:53:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:05,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958216175] [2020-11-06 23:53:05,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:05,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 23:53:05,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845962216] [2020-11-06 23:53:05,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 23:53:05,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:05,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 23:53:05,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:53:05,340 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 5 states. [2020-11-06 23:53:06,170 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:07,513 INFO L93 Difference]: Finished difference Result 422 states and 477 transitions. [2020-11-06 23:53:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 23:53:07,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-11-06 23:53:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:07,520 INFO L225 Difference]: With dead ends: 422 [2020-11-06 23:53:07,520 INFO L226 Difference]: Without dead ends: 313 [2020-11-06 23:53:07,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-06 23:53:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-06 23:53:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 262. [2020-11-06 23:53:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-06 23:53:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 281 transitions. [2020-11-06 23:53:07,627 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 281 transitions. Word has length 155 [2020-11-06 23:53:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:07,628 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 281 transitions. [2020-11-06 23:53:07,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 23:53:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 281 transitions. [2020-11-06 23:53:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-11-06 23:53:07,630 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:07,631 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] [2020-11-06 23:53:07,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:53:07,631 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash -475783445, now seen corresponding path program 1 times [2020-11-06 23:53:07,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:07,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242113974] [2020-11-06 23:53:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:07,636 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,209 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:08,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:53:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:53:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:53:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:08,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242113974] [2020-11-06 23:53:08,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:08,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:53:08,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125856741] [2020-11-06 23:53:08,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:53:08,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:08,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:53:08,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:53:08,440 INFO L87 Difference]: Start difference. First operand 262 states and 281 transitions. Second operand 11 states. [2020-11-06 23:53:09,115 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:09,592 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:09,996 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:53:10,417 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:10,847 WARN L194 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:11,221 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:12,466 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:15,584 INFO L93 Difference]: Finished difference Result 718 states and 838 transitions. [2020-11-06 23:53:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 23:53:15,584 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-11-06 23:53:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:15,592 INFO L225 Difference]: With dead ends: 718 [2020-11-06 23:53:15,592 INFO L226 Difference]: Without dead ends: 576 [2020-11-06 23:53:15,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-11-06 23:53:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-11-06 23:53:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 455. [2020-11-06 23:53:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-11-06 23:53:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 504 transitions. [2020-11-06 23:53:15,847 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 504 transitions. Word has length 168 [2020-11-06 23:53:15,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:15,848 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 504 transitions. [2020-11-06 23:53:15,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:53:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 504 transitions. [2020-11-06 23:53:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-06 23:53:15,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:15,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:15,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:53:15,852 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:15,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:15,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1225462967, now seen corresponding path program 1 times [2020-11-06 23:53:15,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:15,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481425240] [2020-11-06 23:53:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:15,856 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,419 WARN L194 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:16,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:53:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:53:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:53:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:16,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481425240] [2020-11-06 23:53:16,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:16,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:53:16,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113836808] [2020-11-06 23:53:16,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:53:16,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:16,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:53:16,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:53:16,645 INFO L87 Difference]: Start difference. First operand 455 states and 504 transitions. Second operand 10 states. [2020-11-06 23:53:17,258 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:19,082 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:19,500 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:19,979 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:20,375 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:20,758 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:21,136 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:21,520 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:22,101 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:23,648 INFO L93 Difference]: Finished difference Result 1252 states and 1506 transitions. [2020-11-06 23:53:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-06 23:53:23,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-06 23:53:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:23,661 INFO L225 Difference]: With dead ends: 1252 [2020-11-06 23:53:23,661 INFO L226 Difference]: Without dead ends: 917 [2020-11-06 23:53:23,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-11-06 23:53:23,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-11-06 23:53:23,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 741. [2020-11-06 23:53:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-11-06 23:53:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 831 transitions. [2020-11-06 23:53:24,007 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 831 transitions. Word has length 173 [2020-11-06 23:53:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:24,008 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 831 transitions. [2020-11-06 23:53:24,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:53:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 831 transitions. [2020-11-06 23:53:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-06 23:53:24,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:24,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:24,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:53:24,013 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:24,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:24,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1005893592, now seen corresponding path program 1 times [2020-11-06 23:53:24,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:24,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190189167] [2020-11-06 23:53:24,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:24,017 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,502 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:24,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-06 23:53:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:53:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-06 23:53:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:24,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190189167] [2020-11-06 23:53:24,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:24,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:53:24,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798122732] [2020-11-06 23:53:24,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:53:24,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:24,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:53:24,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:53:24,758 INFO L87 Difference]: Start difference. First operand 741 states and 831 transitions. Second operand 11 states. [2020-11-06 23:53:25,600 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:27,312 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:27,670 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:28,128 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:28,573 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:53:28,957 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:30,064 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:30,436 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:30,893 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:32,451 INFO L93 Difference]: Finished difference Result 1924 states and 2354 transitions. [2020-11-06 23:53:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-06 23:53:32,452 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-11-06 23:53:32,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:32,461 INFO L225 Difference]: With dead ends: 1924 [2020-11-06 23:53:32,462 INFO L226 Difference]: Without dead ends: 1303 [2020-11-06 23:53:32,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-11-06 23:53:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2020-11-06 23:53:32,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1015. [2020-11-06 23:53:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-11-06 23:53:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1145 transitions. [2020-11-06 23:53:32,991 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1145 transitions. Word has length 178 [2020-11-06 23:53:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:32,992 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states and 1145 transitions. [2020-11-06 23:53:32,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:53:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1145 transitions. [2020-11-06 23:53:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-06 23:53:32,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:32,998 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:32,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:53:32,998 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1578263461, now seen corresponding path program 1 times [2020-11-06 23:53:32,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:32,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641635213] [2020-11-06 23:53:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:33,003 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,404 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:33,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:53:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:53:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-06 23:53:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-11-06 23:53:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:33,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641635213] [2020-11-06 23:53:33,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:33,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-06 23:53:33,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602918076] [2020-11-06 23:53:33,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 23:53:33,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:33,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 23:53:33,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-11-06 23:53:33,666 INFO L87 Difference]: Start difference. First operand 1015 states and 1145 transitions. Second operand 12 states. [2020-11-06 23:53:35,552 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:35,955 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:36,369 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-11-06 23:53:36,809 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:37,267 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:37,657 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:40,278 INFO L93 Difference]: Finished difference Result 2565 states and 3250 transitions. [2020-11-06 23:53:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-06 23:53:40,279 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 228 [2020-11-06 23:53:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:40,292 INFO L225 Difference]: With dead ends: 2565 [2020-11-06 23:53:40,293 INFO L226 Difference]: Without dead ends: 1670 [2020-11-06 23:53:40,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2020-11-06 23:53:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-11-06 23:53:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1053. [2020-11-06 23:53:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-11-06 23:53:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1183 transitions. [2020-11-06 23:53:40,812 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1183 transitions. Word has length 228 [2020-11-06 23:53:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:40,812 INFO L481 AbstractCegarLoop]: Abstraction has 1053 states and 1183 transitions. [2020-11-06 23:53:40,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 23:53:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1183 transitions. [2020-11-06 23:53:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-06 23:53:40,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:40,818 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:40,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:53:40,819 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:40,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1032595643, now seen corresponding path program 1 times [2020-11-06 23:53:40,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:40,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790956743] [2020-11-06 23:53:40,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:40,823 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,220 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:53:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:53:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-06 23:53:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-11-06 23:53:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:41,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790956743] [2020-11-06 23:53:41,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:41,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-06 23:53:41,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632487952] [2020-11-06 23:53:41,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-06 23:53:41,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:41,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-06 23:53:41,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-11-06 23:53:41,518 INFO L87 Difference]: Start difference. First operand 1053 states and 1183 transitions. Second operand 15 states. [2020-11-06 23:53:42,328 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:53:42,722 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:53:43,107 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:43,490 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:43,866 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:45,221 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:45,609 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:46,028 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:46,479 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:53:46,861 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:53:49,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:49,907 INFO L93 Difference]: Finished difference Result 2639 states and 3320 transitions. [2020-11-06 23:53:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-06 23:53:49,908 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 228 [2020-11-06 23:53:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:49,919 INFO L225 Difference]: With dead ends: 2639 [2020-11-06 23:53:49,919 INFO L226 Difference]: Without dead ends: 1706 [2020-11-06 23:53:49,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2020-11-06 23:53:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-11-06 23:53:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1077. [2020-11-06 23:53:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-11-06 23:53:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1207 transitions. [2020-11-06 23:53:50,448 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1207 transitions. Word has length 228 [2020-11-06 23:53:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:50,449 INFO L481 AbstractCegarLoop]: Abstraction has 1077 states and 1207 transitions. [2020-11-06 23:53:50,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-06 23:53:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1207 transitions. [2020-11-06 23:53:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-06 23:53:50,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:50,453 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:50,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:53:50,454 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:50,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:50,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1207616680, now seen corresponding path program 1 times [2020-11-06 23:53:50,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:50,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511311390] [2020-11-06 23:53:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:50,459 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,887 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:53:50,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:53:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:53:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:53:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:53:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:53:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:53:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:53:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:53:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:50,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:53:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:53:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:53:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:53:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:53:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:53:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-06 23:53:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-11-06 23:53:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:53:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:53:51,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511311390] [2020-11-06 23:53:51,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:53:51,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:53:51,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551721493] [2020-11-06 23:53:51,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:53:51,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:53:51,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:53:51,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:53:51,111 INFO L87 Difference]: Start difference. First operand 1077 states and 1207 transitions. Second operand 9 states. [2020-11-06 23:53:51,791 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:52,647 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:53:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:53:58,583 INFO L93 Difference]: Finished difference Result 4175 states and 5309 transitions. [2020-11-06 23:53:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-06 23:53:58,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 228 [2020-11-06 23:53:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:53:58,603 INFO L225 Difference]: With dead ends: 4175 [2020-11-06 23:53:58,603 INFO L226 Difference]: Without dead ends: 3218 [2020-11-06 23:53:58,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=306, Invalid=1176, Unknown=0, NotChecked=0, Total=1482 [2020-11-06 23:53:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2020-11-06 23:53:59,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 2229. [2020-11-06 23:53:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2020-11-06 23:53:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2533 transitions. [2020-11-06 23:53:59,654 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2533 transitions. Word has length 228 [2020-11-06 23:53:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:53:59,654 INFO L481 AbstractCegarLoop]: Abstraction has 2229 states and 2533 transitions. [2020-11-06 23:53:59,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:53:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2533 transitions. [2020-11-06 23:53:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-11-06 23:53:59,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:53:59,660 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:53:59,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:53:59,660 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:53:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:53:59,660 INFO L82 PathProgramCache]: Analyzing trace with hash 2084950706, now seen corresponding path program 1 times [2020-11-06 23:53:59,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:53:59,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247285118] [2020-11-06 23:53:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:53:59,664 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:53:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,079 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:54:00,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:54:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 23:54:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-06 23:54:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-06 23:54:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-06 23:54:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-06 23:54:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:54:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:54:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:54:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-11-06 23:54:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:54:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:54:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:54:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:54:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:54:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:54:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-11-06 23:54:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-11-06 23:54:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:54:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:54:00,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247285118] [2020-11-06 23:54:00,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:54:00,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-06 23:54:00,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875943643] [2020-11-06 23:54:00,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-06 23:54:00,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:54:00,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-06 23:54:00,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2020-11-06 23:54:00,703 INFO L87 Difference]: Start difference. First operand 2229 states and 2533 transitions. Second operand 22 states. [2020-11-06 23:54:01,502 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:54:02,041 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:54:02,452 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-11-06 23:54:02,869 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:03,308 WARN L194 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:54:03,737 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:05,038 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:54:06,306 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:06,765 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:07,412 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:07,879 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:10,226 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:10,794 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:11,201 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:11,626 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:12,064 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:12,593 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:13,044 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:54:13,518 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-11-06 23:54:14,371 WARN L194 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-06 23:54:15,353 WARN L194 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-11-06 23:54:16,126 WARN L194 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-11-06 23:54:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:54:21,338 INFO L93 Difference]: Finished difference Result 5248 states and 6384 transitions. [2020-11-06 23:54:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-11-06 23:54:21,339 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 233 [2020-11-06 23:54:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:54:21,358 INFO L225 Difference]: With dead ends: 5248 [2020-11-06 23:54:21,358 INFO L226 Difference]: Without dead ends: 3139 [2020-11-06 23:54:21,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1967 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=1223, Invalid=5419, Unknown=0, NotChecked=0, Total=6642 [2020-11-06 23:54:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2020-11-06 23:54:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2185. [2020-11-06 23:54:22,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2185 states. [2020-11-06 23:54:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2473 transitions. [2020-11-06 23:54:22,376 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2473 transitions. Word has length 233 [2020-11-06 23:54:22,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:54:22,377 INFO L481 AbstractCegarLoop]: Abstraction has 2185 states and 2473 transitions. [2020-11-06 23:54:22,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-06 23:54:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2473 transitions. [2020-11-06 23:54:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-11-06 23:54:22,383 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:54:22,384 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:54:22,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:54:22,384 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 23:54:22,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:54:22,385 INFO L82 PathProgramCache]: Analyzing trace with hash 477791015, now seen corresponding path program 1 times [2020-11-06 23:54:22,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:54:22,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17709477] [2020-11-06 23:54:22,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:54:22,776 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2020-11-06 23:54:22,924 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-06 23:54:23,606 WARN L194 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:54:24,251 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:54:24,961 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:54:25,599 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:54:25,604 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-06 23:54:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:54:25,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:54:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:54:26,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:54:26,283 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:54:26,283 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:54:26,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 23:54:26,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:54:26 BoogieIcfgContainer [2020-11-06 23:54:26,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:54:26,325 INFO L168 Benchmark]: Toolchain (without parser) took 86889.80 ms. Allocated memory was 166.7 MB in the beginning and 1.0 GB in the end (delta: 875.6 MB). Free memory was 141.5 MB in the beginning and 683.7 MB in the end (delta: -542.2 MB). Peak memory consumption was 334.4 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:26,326 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 166.7 MB. Free memory is still 140.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:54:26,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.76 ms. Allocated memory is still 166.7 MB. Free memory was 140.8 MB in the beginning and 119.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:26,327 INFO L168 Benchmark]: Boogie Preprocessor took 112.65 ms. Allocated memory is still 166.7 MB. Free memory was 119.5 MB in the beginning and 148.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:26,327 INFO L168 Benchmark]: RCFGBuilder took 1461.02 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 148.0 MB in the beginning and 133.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:26,328 INFO L168 Benchmark]: TraceAbstraction took 84723.10 ms. Allocated memory was 200.3 MB in the beginning and 1.0 GB in the end (delta: 842.0 MB). Free memory was 133.3 MB in the beginning and 683.7 MB in the end (delta: -550.4 MB). Peak memory consumption was 291.6 MB. Max. memory is 8.0 GB. [2020-11-06 23:54:26,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 166.7 MB. Free memory is still 140.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 580.76 ms. Allocated memory is still 166.7 MB. Free memory was 140.8 MB in the beginning and 119.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.65 ms. Allocated memory is still 166.7 MB. Free memory was 119.5 MB in the beginning and 148.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1461.02 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 148.0 MB in the beginning and 133.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 84723.10 ms. Allocated memory was 200.3 MB in the beginning and 1.0 GB in the end (delta: 842.0 MB). Free memory was 133.3 MB in the beginning and 683.7 MB in the end (delta: -550.4 MB). Peak memory consumption was 291.6 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: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L441] int retValue_acc ; [L442] int tmp ; [L446] FCALL select_helpers() [L447] FCALL select_features() [L448] CALL, EXPR valid_product() [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); [L448] RET, EXPR valid_product() [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) [L452] FCALL setup() [L453] CALL runTest() [L434] CALL __utac_acc__Specification2_spec__1() [L469] methAndRunningLastTime = 0 [L434] RET __utac_acc__Specification2_spec__1() [L435] CALL test() [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) [L79] CALL waterRise() [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 [L79] RET waterRise() [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L99] CALL startSystem() [L323] systemActive = 1 [L99] RET startSystem() [L114] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L292] CALL, EXPR isHighWaterSensorDry() [L584] int retValue_acc ; [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); [L292] RET, EXPR isHighWaterSensorDry() [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L180] CALL activatePump() [L205] int tmp ; [L209] CALL, EXPR isMethaneAlarm() [L230] int retValue_acc ; [L234] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L234] RET, EXPR isMethaneLevelCritical() [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); [L209] RET, EXPR isMethaneAlarm() [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L215] CALL activatePump__wrappee__highWaterSensor() [L199] pumpRunning = 1 [L215] RET activatePump__wrappee__highWaterSensor() [L180] RET activatePump() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L474] int tmp ; [L475] int tmp___0 ; [L479] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L479] RET, EXPR isMethaneLevelCritical() [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 [L157] RET __utac_acc__Specification2_spec__2() [L114] RET timeShift() [L67] COND TRUE 1 [L69] COND TRUE splverifierCounter < 4 [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) [L89] CALL changeMethaneLevel() [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 [L89] RET changeMethaneLevel() [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L99] CALL startSystem() [L323] systemActive = 1 [L99] RET startSystem() [L114] CALL timeShift() [L142] COND TRUE \read(pumpRunning) [L144] CALL lowerWaterLevel() [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 [L144] RET lowerWaterLevel() [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L171] int tmp ; [L174] COND FALSE !(! pumpRunning) [L189] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L474] int tmp ; [L475] int tmp___0 ; [L479] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L479] RET, EXPR isMethaneLevelCritical() [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L483] CALL, EXPR isPumpRunning() [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); [L483] RET, EXPR isPumpRunning() [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) [L486] COND TRUE \read(methAndRunningLastTime) [L488] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 647 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 84.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 69.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2468 SDtfs, 8154 SDslu, 7109 SDs, 0 SdLazy, 15659 SolverSat, 2900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 562 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3137 ImplicationChecksByTransitivity, 32.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2229occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 3877 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...