/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:42:55,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:42:55,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:42:55,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:42:55,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:42:55,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:42:55,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:42:55,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:42:55,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:42:55,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:42:55,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:42:55,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:42:55,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:42:55,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:42:55,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:42:55,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:42:55,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:42:55,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:42:55,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:42:55,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:42:55,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:42:55,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:42:55,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:42:55,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:42:55,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:42:55,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:42:55,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:42:55,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:42:55,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:42:55,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:42:55,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:42:55,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:42:55,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:42:55,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:42:55,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:42:55,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:42:55,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:42:55,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:42:55,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:42:55,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:42:55,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:42:55,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:42:56,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:42:56,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:42:56,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:42:56,011 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:42:56,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:42:56,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:42:56,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:42:56,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:42:56,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:42:56,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:42:56,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:42:56,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:42:56,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:42:56,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:42:56,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:42:56,014 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:42:56,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:42:56,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:42:56,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:42:56,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:42:56,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:42:56,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:42:56,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:42:56,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:42:56,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:42:56,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:42:56,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:42:56,455 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:42:56,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-23 23:42:56,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0948e6e7d/9bc3c6ff93464addac85096cee7df975/FLAGe0370b749 [2020-10-23 23:42:57,220 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:42:57,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-23 23:42:57,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0948e6e7d/9bc3c6ff93464addac85096cee7df975/FLAGe0370b749 [2020-10-23 23:42:57,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0948e6e7d/9bc3c6ff93464addac85096cee7df975 [2020-10-23 23:42:57,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:42:57,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:42:57,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:42:57,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:42:57,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:42:57,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:57" (1/1) ... [2020-10-23 23:42:57,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b4ee30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:57, skipping insertion in model container [2020-10-23 23:42:57,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:57" (1/1) ... [2020-10-23 23:42:57,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:42:57,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:42:58,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:42:58,064 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:42:58,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:42:58,194 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:42:58,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58 WrapperNode [2020-10-23 23:42:58,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:42:58,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:42:58,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:42:58,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:42:58,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... [2020-10-23 23:42:58,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:42:58,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:42:58,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:42:58,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:42:58,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:42:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:42:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:42:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:42:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:42:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:42:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:42:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:42:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:42:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:42:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:42:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:42:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:42:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:42:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:42:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:42:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:42:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:42:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:42:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:42:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:42:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:42:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:42:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:42:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:42:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:42:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:42:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:42:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:42:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:42:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:42:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:42:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:42:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:42:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:42:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:42:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:42:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:42:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:42:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:42:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:42:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:42:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:42:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:42:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:42:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:42:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:42:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:42:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:42:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:42:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:42:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:42:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:42:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:42:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:42:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:42:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:42:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:42:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:42:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:42:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:42:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:42:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:42:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:42:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:42:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:42:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:42:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:42:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:42:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:42:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:42:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:42:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:42:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:42:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:42:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:42:59,889 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:42:59,889 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:42:59,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:59 BoogieIcfgContainer [2020-10-23 23:42:59,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:42:59,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:42:59,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:42:59,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:42:59,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:42:57" (1/3) ... [2020-10-23 23:42:59,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32774f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:59, skipping insertion in model container [2020-10-23 23:42:59,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:58" (2/3) ... [2020-10-23 23:42:59,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32774f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:59, skipping insertion in model container [2020-10-23 23:42:59,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:59" (3/3) ... [2020-10-23 23:42:59,903 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-10-23 23:42:59,916 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:42:59,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:42:59,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:42:59,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:42:59,965 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:42:59,965 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:42:59,965 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:42:59,965 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:42:59,966 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:42:59,966 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:42:59,966 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:42:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-10-23 23:43:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:43:00,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:00,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:00,014 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:00,022 INFO L82 PathProgramCache]: Analyzing trace with hash 781800194, now seen corresponding path program 1 times [2020-10-23 23:43:00,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:00,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660811744] [2020-10-23 23:43:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,791 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:00,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660811744] [2020-10-23 23:43:00,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:00,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:43:00,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640131646] [2020-10-23 23:43:00,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:43:00,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:00,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:43:00,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:00,991 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-10-23 23:43:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:02,614 INFO L93 Difference]: Finished difference Result 449 states and 535 transitions. [2020-10-23 23:43:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:43:02,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:43:02,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:02,633 INFO L225 Difference]: With dead ends: 449 [2020-10-23 23:43:02,633 INFO L226 Difference]: Without dead ends: 283 [2020-10-23 23:43:02,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-23 23:43:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 242. [2020-10-23 23:43:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-23 23:43:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-10-23 23:43:02,826 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 148 [2020-10-23 23:43:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:02,828 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-10-23 23:43:02,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:43:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-10-23 23:43:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:43:02,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:02,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:02,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:43:02,834 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:02,835 INFO L82 PathProgramCache]: Analyzing trace with hash 936300476, now seen corresponding path program 1 times [2020-10-23 23:43:02,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:02,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650070472] [2020-10-23 23:43:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,344 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:43:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:43:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:03,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650070472] [2020-10-23 23:43:03,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:03,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:43:03,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293236437] [2020-10-23 23:43:03,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:43:03,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:03,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:43:03,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:43:03,516 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 4 states. [2020-10-23 23:43:04,306 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:05,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:05,389 INFO L93 Difference]: Finished difference Result 354 states and 396 transitions. [2020-10-23 23:43:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:43:05,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:43:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:05,394 INFO L225 Difference]: With dead ends: 354 [2020-10-23 23:43:05,394 INFO L226 Difference]: Without dead ends: 266 [2020-10-23 23:43:05,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:43:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-23 23:43:05,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2020-10-23 23:43:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 23:43:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-10-23 23:43:05,488 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 149 [2020-10-23 23:43:05,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:05,489 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-10-23 23:43:05,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:43:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-10-23 23:43:05,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 23:43:05,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:05,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:05,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:43:05,493 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:05,493 INFO L82 PathProgramCache]: Analyzing trace with hash -911159054, now seen corresponding path program 1 times [2020-10-23 23:43:05,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:05,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079486690] [2020-10-23 23:43:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,073 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:06,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:43:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:06,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079486690] [2020-10-23 23:43:06,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:06,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:06,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71721043] [2020-10-23 23:43:06,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:06,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:06,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:06,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:06,366 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 9 states. [2020-10-23 23:43:07,022 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:07,550 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:07,961 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:08,381 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:08,786 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:09,180 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:10,431 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:12,493 INFO L93 Difference]: Finished difference Result 594 states and 680 transitions. [2020-10-23 23:43:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:43:12,494 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 23:43:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:12,501 INFO L225 Difference]: With dead ends: 594 [2020-10-23 23:43:12,501 INFO L226 Difference]: Without dead ends: 477 [2020-10-23 23:43:12,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:43:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-10-23 23:43:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 400. [2020-10-23 23:43:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-23 23:43:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 442 transitions. [2020-10-23 23:43:12,689 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 442 transitions. Word has length 158 [2020-10-23 23:43:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:12,690 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 442 transitions. [2020-10-23 23:43:12,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 442 transitions. [2020-10-23 23:43:12,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 23:43:12,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:12,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:12,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:43:12,693 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:12,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:12,694 INFO L82 PathProgramCache]: Analyzing trace with hash -818785623, now seen corresponding path program 1 times [2020-10-23 23:43:12,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:12,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627794728] [2020-10-23 23:43:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,088 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 23:43:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 23:43:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:13,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627794728] [2020-10-23 23:43:13,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:13,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:43:13,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892284476] [2020-10-23 23:43:13,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:43:13,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:13,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:43:13,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:43:13,237 INFO L87 Difference]: Start difference. First operand 400 states and 442 transitions. Second operand 6 states. [2020-10-23 23:43:13,826 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:15,731 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:16,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:16,300 INFO L93 Difference]: Finished difference Result 993 states and 1166 transitions. [2020-10-23 23:43:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:43:16,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 23:43:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:16,317 INFO L225 Difference]: With dead ends: 993 [2020-10-23 23:43:16,317 INFO L226 Difference]: Without dead ends: 708 [2020-10-23 23:43:16,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:43:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-10-23 23:43:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 590. [2020-10-23 23:43:16,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-10-23 23:43:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 652 transitions. [2020-10-23 23:43:16,624 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 652 transitions. Word has length 166 [2020-10-23 23:43:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:16,625 INFO L481 AbstractCegarLoop]: Abstraction has 590 states and 652 transitions. [2020-10-23 23:43:16,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:43:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 652 transitions. [2020-10-23 23:43:16,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 23:43:16,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:16,628 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] [2020-10-23 23:43:16,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:43:16,628 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:16,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1386373475, now seen corresponding path program 1 times [2020-10-23 23:43:16,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:16,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794227974] [2020-10-23 23:43:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,041 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:17,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:43:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:43:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:43:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:17,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794227974] [2020-10-23 23:43:17,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:17,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:17,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082563332] [2020-10-23 23:43:17,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:17,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:17,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:17,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:17,222 INFO L87 Difference]: Start difference. First operand 590 states and 652 transitions. Second operand 9 states. [2020-10-23 23:43:17,883 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:19,197 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:19,635 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:20,059 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:20,438 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:20,805 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:21,173 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:21,533 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:22,059 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:23,641 INFO L93 Difference]: Finished difference Result 1584 states and 1843 transitions. [2020-10-23 23:43:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:43:23,642 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 23:43:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:23,651 INFO L225 Difference]: With dead ends: 1584 [2020-10-23 23:43:23,652 INFO L226 Difference]: Without dead ends: 1109 [2020-10-23 23:43:23,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:43:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-10-23 23:43:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 981. [2020-10-23 23:43:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2020-10-23 23:43:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1092 transitions. [2020-10-23 23:43:24,084 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1092 transitions. Word has length 167 [2020-10-23 23:43:24,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:24,086 INFO L481 AbstractCegarLoop]: Abstraction has 981 states and 1092 transitions. [2020-10-23 23:43:24,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1092 transitions. [2020-10-23 23:43:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:43:24,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:24,091 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] [2020-10-23 23:43:24,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:43:24,092 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:24,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1826038701, now seen corresponding path program 1 times [2020-10-23 23:43:24,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:24,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152746933] [2020-10-23 23:43:24,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,509 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 23:43:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:43:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:43:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:24,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152746933] [2020-10-23 23:43:24,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:24,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:43:24,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093781664] [2020-10-23 23:43:24,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:43:24,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:24,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:43:24,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:43:24,668 INFO L87 Difference]: Start difference. First operand 981 states and 1092 transitions. Second operand 10 states. [2020-10-23 23:43:25,317 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:26,900 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:27,356 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:27,839 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:28,227 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:28,588 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:29,278 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:29,653 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:30,137 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:31,185 INFO L93 Difference]: Finished difference Result 1242 states and 1456 transitions. [2020-10-23 23:43:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:43:31,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 23:43:31,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:31,195 INFO L225 Difference]: With dead ends: 1242 [2020-10-23 23:43:31,195 INFO L226 Difference]: Without dead ends: 1238 [2020-10-23 23:43:31,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:43:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-10-23 23:43:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 981. [2020-10-23 23:43:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2020-10-23 23:43:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1089 transitions. [2020-10-23 23:43:31,603 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1089 transitions. Word has length 172 [2020-10-23 23:43:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:31,604 INFO L481 AbstractCegarLoop]: Abstraction has 981 states and 1089 transitions. [2020-10-23 23:43:31,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:43:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1089 transitions. [2020-10-23 23:43:31,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:43:31,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:31,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:31,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:43:31,615 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]=== [2020-10-23 23:43:31,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:31,615 INFO L82 PathProgramCache]: Analyzing trace with hash 79865007, now seen corresponding path program 1 times [2020-10-23 23:43:31,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:31,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697062984] [2020-10-23 23:43:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:31,998 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:31,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:43:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:43:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:32,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697062984] [2020-10-23 23:43:32,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:32,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:43:32,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540671700] [2020-10-23 23:43:32,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:43:32,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:32,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:43:32,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:43:32,196 INFO L87 Difference]: Start difference. First operand 981 states and 1089 transitions. Second operand 10 states. [2020-10-23 23:43:33,759 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:34,149 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:34,549 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:43:34,956 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:35,338 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:35,669 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:37,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:37,209 INFO L93 Difference]: Finished difference Result 2248 states and 2658 transitions. [2020-10-23 23:43:37,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:43:37,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:43:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:37,218 INFO L225 Difference]: With dead ends: 2248 [2020-10-23 23:43:37,218 INFO L226 Difference]: Without dead ends: 1382 [2020-10-23 23:43:37,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:43:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-10-23 23:43:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1013. [2020-10-23 23:43:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-23 23:43:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1121 transitions. [2020-10-23 23:43:37,729 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1121 transitions. Word has length 196 [2020-10-23 23:43:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:37,729 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1121 transitions. [2020-10-23 23:43:37,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:43:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1121 transitions. [2020-10-23 23:43:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:43:37,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:37,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:37,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:43:37,734 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]=== [2020-10-23 23:43:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1059928817, now seen corresponding path program 1 times [2020-10-23 23:43:37,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:37,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567195251] [2020-10-23 23:43:37,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,118 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:43:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:43:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:38,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567195251] [2020-10-23 23:43:38,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:38,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 23:43:38,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561284200] [2020-10-23 23:43:38,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 23:43:38,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:38,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 23:43:38,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 23:43:38,339 INFO L87 Difference]: Start difference. First operand 1013 states and 1121 transitions. Second operand 13 states. [2020-10-23 23:43:39,101 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:39,478 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:39,848 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:40,217 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:40,576 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:41,663 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:42,041 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:42,445 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:42,852 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:43,224 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:45,103 INFO L93 Difference]: Finished difference Result 2324 states and 2767 transitions. [2020-10-23 23:43:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:43:45,103 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-23 23:43:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:45,115 INFO L225 Difference]: With dead ends: 2324 [2020-10-23 23:43:45,115 INFO L226 Difference]: Without dead ends: 1426 [2020-10-23 23:43:45,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 23:43:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-10-23 23:43:45,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1037. [2020-10-23 23:43:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2020-10-23 23:43:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1145 transitions. [2020-10-23 23:43:45,502 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1145 transitions. Word has length 196 [2020-10-23 23:43:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:45,503 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1145 transitions. [2020-10-23 23:43:45,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 23:43:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1145 transitions. [2020-10-23 23:43:45,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:43:45,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:45,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:45,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:43:45,507 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]=== [2020-10-23 23:43:45,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:45,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1103915788, now seen corresponding path program 1 times [2020-10-23 23:43:45,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:45,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331677652] [2020-10-23 23:43:45,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:45,906 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:45,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:45,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:45,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:43:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:43:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:46,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331677652] [2020-10-23 23:43:46,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:46,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:43:46,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187658713] [2020-10-23 23:43:46,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:43:46,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:46,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:43:46,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:43:46,124 INFO L87 Difference]: Start difference. First operand 1037 states and 1145 transitions. Second operand 7 states. [2020-10-23 23:43:46,826 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:47,642 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:51,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:51,277 INFO L93 Difference]: Finished difference Result 3482 states and 4223 transitions. [2020-10-23 23:43:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:43:51,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-10-23 23:43:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:51,293 INFO L225 Difference]: With dead ends: 3482 [2020-10-23 23:43:51,293 INFO L226 Difference]: Without dead ends: 2560 [2020-10-23 23:43:51,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:43:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2020-10-23 23:43:52,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2081. [2020-10-23 23:43:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-10-23 23:43:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2361 transitions. [2020-10-23 23:43:52,506 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2361 transitions. Word has length 196 [2020-10-23 23:43:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:52,507 INFO L481 AbstractCegarLoop]: Abstraction has 2081 states and 2361 transitions. [2020-10-23 23:43:52,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:43:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2361 transitions. [2020-10-23 23:43:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:43:52,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:52,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:52,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:43:52,517 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]=== [2020-10-23 23:43:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:52,519 INFO L82 PathProgramCache]: Analyzing trace with hash -867506473, now seen corresponding path program 1 times [2020-10-23 23:43:52,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:52,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316212110] [2020-10-23 23:43:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:43:52,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:43:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:43:52,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:43:52,992 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:43:52,993 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:43:52,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:43:53,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:43:53 BoogieIcfgContainer [2020-10-23 23:43:53,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:43:53,259 INFO L168 Benchmark]: Toolchain (without parser) took 55729.84 ms. Allocated memory was 151.0 MB in the beginning and 936.4 MB in the end (delta: 785.4 MB). Free memory was 126.2 MB in the beginning and 425.1 MB in the end (delta: -298.9 MB). Peak memory consumption was 487.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:53,263 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 123.7 MB in the end (delta: 102.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:43:53,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.81 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:53,264 INFO L168 Benchmark]: Boogie Preprocessor took 129.66 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:53,266 INFO L168 Benchmark]: RCFGBuilder took 1566.31 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 101.2 MB in the beginning and 158.2 MB in the end (delta: -57.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:53,266 INFO L168 Benchmark]: TraceAbstraction took 53357.27 ms. Allocated memory was 203.4 MB in the beginning and 936.4 MB in the end (delta: 733.0 MB). Free memory was 157.7 MB in the beginning and 425.1 MB in the end (delta: -267.4 MB). Peak memory consumption was 465.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:53,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 123.7 MB in the end (delta: 102.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 660.81 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 105.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 129.66 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1566.31 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 101.2 MB in the beginning and 158.2 MB in the end (delta: -57.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53357.27 ms. Allocated memory was 203.4 MB in the beginning and 936.4 MB in the end (delta: 733.0 MB). Free memory was 157.7 MB in the beginning and 425.1 MB in the end (delta: -267.4 MB). Peak memory consumption was 465.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=178, head={182:170}, methaneLevelCritical=152, pumpRunning=141, systemActive=140, waterLevel=1] [L50] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=178, head={182:170}, methaneLevelCritical=0, pumpRunning=141, systemActive=140, waterLevel=1] [L252] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=178, head={182:170}, methaneLevelCritical=0, pumpRunning=0, systemActive=140, waterLevel=1] [L253] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=178, head={182:170}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={182:170}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L452] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L537] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L537] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L539] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L541] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L542] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L183] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L185] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L186] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L187] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L190] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L192] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L194] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L200] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L202] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L204] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L204] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L210] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L212] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L214] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L214] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L220] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L222] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L237] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L268] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L288] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L386] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L387] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L129] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L136] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L137] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L391] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L393] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L396] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L398] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L399] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L293] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L295] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L297] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L316] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L297] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L268] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L274] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L88] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L91] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L159] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L163] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L343] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L344] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L163] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L163] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L165] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L167] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L147] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product35.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 42.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2076 SDtfs, 3803 SDslu, 4022 SDs, 0 SdLazy, 7434 SolverSat, 1171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 204 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2081occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1892 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1749 NumberOfCodeBlocks, 1749 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1539 ConstructedInterpolants, 0 QuantifiedInterpolants, 697499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...